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OpenCloudOS-Kernel/fs/hfsplus/dir.c

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License cleanup: add SPDX GPL-2.0 license identifier to files with no license Many source files in the tree are missing licensing information, which makes it harder for compliance tools to determine the correct license. By default all files without license information are under the default license of the kernel, which is GPL version 2. Update the files which contain no license information with the 'GPL-2.0' SPDX license identifier. The SPDX identifier is a legally binding shorthand, which can be used instead of the full boiler plate text. This patch is based on work done by Thomas Gleixner and Kate Stewart and Philippe Ombredanne. How this work was done: Patches were generated and checked against linux-4.14-rc6 for a subset of the use cases: - file had no licensing information it it. - file was a */uapi/* one with no licensing information in it, - file was a */uapi/* one with existing licensing information, Further patches will be generated in subsequent months to fix up cases where non-standard license headers were used, and references to license had to be inferred by heuristics based on keywords. The analysis to determine which SPDX License Identifier to be applied to a file was done in a spreadsheet of side by side results from of the output of two independent scanners (ScanCode & Windriver) producing SPDX tag:value files created by Philippe Ombredanne. Philippe prepared the base worksheet, and did an initial spot review of a few 1000 files. The 4.13 kernel was the starting point of the analysis with 60,537 files assessed. Kate Stewart did a file by file comparison of the scanner results in the spreadsheet to determine which SPDX license identifier(s) to be applied to the file. She confirmed any determination that was not immediately clear with lawyers working with the Linux Foundation. Criteria used to select files for SPDX license identifier tagging was: - Files considered eligible had to be source code files. - Make and config files were included as candidates if they contained >5 lines of source - File already had some variant of a license header in it (even if <5 lines). All documentation files were explicitly excluded. The following heuristics were used to determine which SPDX license identifiers to apply. - when both scanners couldn't find any license traces, file was considered to have no license information in it, and the top level COPYING file license applied. For non */uapi/* files that summary was: SPDX license identifier # files ---------------------------------------------------|------- GPL-2.0 11139 and resulted in the first patch in this series. If that file was a */uapi/* path one, it was "GPL-2.0 WITH Linux-syscall-note" otherwise it was "GPL-2.0". Results of that was: SPDX license identifier # files ---------------------------------------------------|------- GPL-2.0 WITH Linux-syscall-note 930 and resulted in the second patch in this series. - if a file had some form of licensing information in it, and was one of the */uapi/* ones, it was denoted with the Linux-syscall-note if any GPL family license was found in the file or had no licensing in it (per prior point). Results summary: SPDX license identifier # files ---------------------------------------------------|------ GPL-2.0 WITH Linux-syscall-note 270 GPL-2.0+ WITH Linux-syscall-note 169 ((GPL-2.0 WITH Linux-syscall-note) OR BSD-2-Clause) 21 ((GPL-2.0 WITH Linux-syscall-note) OR BSD-3-Clause) 17 LGPL-2.1+ WITH Linux-syscall-note 15 GPL-1.0+ WITH Linux-syscall-note 14 ((GPL-2.0+ WITH Linux-syscall-note) OR BSD-3-Clause) 5 LGPL-2.0+ WITH Linux-syscall-note 4 LGPL-2.1 WITH Linux-syscall-note 3 ((GPL-2.0 WITH Linux-syscall-note) OR MIT) 3 ((GPL-2.0 WITH Linux-syscall-note) AND MIT) 1 and that resulted in the third patch in this series. - when the two scanners agreed on the detected license(s), that became the concluded license(s). - when there was disagreement between the two scanners (one detected a license but the other didn't, or they both detected different licenses) a manual inspection of the file occurred. - In most cases a manual inspection of the information in the file resulted in a clear resolution of the license that should apply (and which scanner probably needed to revisit its heuristics). - When it was not immediately clear, the license identifier was confirmed with lawyers working with the Linux Foundation. - If there was any question as to the appropriate license identifier, the file was flagged for further research and to be revisited later in time. In total, over 70 hours of logged manual review was done on the spreadsheet to determine the SPDX license identifiers to apply to the source files by Kate, Philippe, Thomas and, in some cases, confirmation by lawyers working with the Linux Foundation. Kate also obtained a third independent scan of the 4.13 code base from FOSSology, and compared selected files where the other two scanners disagreed against that SPDX file, to see if there was new insights. The Windriver scanner is based on an older version of FOSSology in part, so they are related. Thomas did random spot checks in about 500 files from the spreadsheets for the uapi headers and agreed with SPDX license identifier in the files he inspected. For the non-uapi files Thomas did random spot checks in about 15000 files. In initial set of patches against 4.14-rc6, 3 files were found to have copy/paste license identifier errors, and have been fixed to reflect the correct identifier. Additionally Philippe spent 10 hours this week doing a detailed manual inspection and review of the 12,461 patched files from the initial patch version early this week with: - a full scancode scan run, collecting the matched texts, detected license ids and scores - reviewing anything where there was a license detected (about 500+ files) to ensure that the applied SPDX license was correct - reviewing anything where there was no detection but the patch license was not GPL-2.0 WITH Linux-syscall-note to ensure that the applied SPDX license was correct This produced a worksheet with 20 files needing minor correction. This worksheet was then exported into 3 different .csv files for the different types of files to be modified. These .csv files were then reviewed by Greg. Thomas wrote a script to parse the csv files and add the proper SPDX tag to the file, in the format that the file expected. This script was further refined by Greg based on the output to detect more types of files automatically and to distinguish between header and source .c files (which need different comment types.) Finally Greg ran the script using the .csv files to generate the patches. Reviewed-by: Kate Stewart <kstewart@linuxfoundation.org> Reviewed-by: Philippe Ombredanne <pombredanne@nexb.com> Reviewed-by: Thomas Gleixner <tglx@linutronix.de> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2017-11-01 22:07:57 +08:00
// SPDX-License-Identifier: GPL-2.0
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-17 06:20:36 +08:00
/*
* linux/fs/hfsplus/dir.c
*
* Copyright (C) 2001
* Brad Boyer (flar@allandria.com)
* (C) 2003 Ardis Technologies <roman@ardistech.com>
*
* Handling of directories
*/
#include <linux/errno.h>
#include <linux/fs.h>
#include <linux/slab.h>
#include <linux/random.h>
hfsplus: fix worst-case unicode to char conversion of file names and attributes This is a series of 3 patches which corrects issues in HFS+ concerning the use of non-english file names and attributes. Names and attributes are stored internally as UTF-16 units up to a fixed maximum size, and convert to and from user-representation by NLS. The code incorrectly assume that NLS string lengths are equal to unicode lengths, which is only true for English ascii usage. This patch (of 3): The HFS Plus Volume Format specification (TN1150) states that file names are stored internally as a maximum of 255 unicode characters, as defined by The Unicode Standard, Version 2.0 [Unicode, Inc. ISBN 0-201-48345-9]. File names are converted by the NLS system on Linux before presented to the user. 255 CJK characters converts to UTF-8 with 1 unicode character to up to 3 bytes, and to GB18030 with 1 unicode character to up to 4 bytes. Thus, trying in a UTF-8 locale to list files with names of more than 85 CJK characters results in: $ ls /mnt ls: reading directory /mnt: File name too long The receiving buffer to hfsplus_uni2asc() needs to be 255 x NLS_MAX_CHARSET_SIZE bytes, not 255 bytes as the code has always been. Similar consideration applies to attributes, which are stored internally as a maximum of 127 UTF-16BE units. See XNU source for an up-to-date reference on attributes. Strictly speaking, the maximum value of NLS_MAX_CHARSET_SIZE = 6 is not attainable in the case of conversion to UTF-8, as going beyond 3 bytes requires the use of surrogate pairs, i.e. consuming two input units. Thanks Anton Altaparmakov for reviewing an earlier version of this change. This patch fixes all callers of hfsplus_uni2asc(), and also enables the use of long non-English file names in HFS+. The getting and setting, and general usage of long non-English attributes requires further forthcoming work, in the following patches of this series. [akpm@linux-foundation.org: fix build] Signed-off-by: Hin-Tak Leung <htl10@users.sourceforge.net> Reviewed-by: Anton Altaparmakov <anton@tuxera.com> Cc: Vyacheslav Dubeyko <slava@dubeyko.com> Cc: Al Viro <viro@zeniv.linux.org.uk> Cc: Christoph Hellwig <hch@infradead.org> Cc: Sougata Santra <sougata@tuxera.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2014-06-07 05:36:21 +08:00
#include <linux/nls.h>
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-17 06:20:36 +08:00
#include "hfsplus_fs.h"
#include "hfsplus_raw.h"
hfsplus: add support of manipulation by attributes file Add support of manipulation by attributes file. Signed-off-by: Vyacheslav Dubeyko <slava@dubeyko.com> Reported-by: Hin-Tak Leung <htl10@users.sourceforge.net> Cc: Al Viro <viro@zeniv.linux.org.uk> Cc: Christoph Hellwig <hch@lst.de> Cc: Jan Kara <jack@suse.cz> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2013-02-28 09:03:04 +08:00
#include "xattr.h"
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-17 06:20:36 +08:00
static inline void hfsplus_instantiate(struct dentry *dentry,
struct inode *inode, u32 cnid)
{
dentry->d_fsdata = (void *)(unsigned long)cnid;
d_instantiate(dentry, inode);
}
/* Find the entry inside dir named dentry->d_name */
static struct dentry *hfsplus_lookup(struct inode *dir, struct dentry *dentry,
stop passing nameidata to ->lookup() Just the flags; only NFS cares even about that, but there are legitimate uses for such argument. And getting rid of that completely would require splitting ->lookup() into a couple of methods (at least), so let's leave that alone for now... Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2012-06-11 05:13:09 +08:00
unsigned int flags)
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-17 06:20:36 +08:00
{
struct inode *inode = NULL;
struct hfs_find_data fd;
struct super_block *sb;
hfsplus_cat_entry entry;
int err;
u32 cnid, linkid = 0;
u16 type;
sb = dir->i_sb;
HFS+: add custom dentry hash and comparison operations Add custom dentry hash and comparison operations for HFS+ filesystems that are case-insensitive and/or do automatic unicode decomposition. The new operations reuse the existing HFS+ ASCII to unicode conversion, unicode decomposition and case folding functionality. Signed-off-by: Duane Griffin <duaneg@dghda.com> Signed-off-by: Roman Zippel <zippel@linux-m68k.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-07-16 14:41:23 +08:00
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-17 06:20:36 +08:00
dentry->d_fsdata = NULL;
hfsplus: add error checking for hfs_find_init() hfs_find_init() may fail with ENOMEM, but there are places, where the returned value is not checked. The consequences can be very unpleasant, e.g. kfree uninitialized pointer and inappropriate mutex unlocking. The patch adds checks for errors in hfs_find_init(). Found by Linux Driver Verification project (linuxtesting.org). Signed-off-by: Alexey Khoroshilov <khoroshilov@ispras.ru> Signed-off-by: Christoph Hellwig <hch@lst.de>
2011-07-06 06:29:59 +08:00
err = hfs_find_init(HFSPLUS_SB(sb)->cat_tree, &fd);
if (err)
return ERR_PTR(err);
hfsplus: fix longname handling Longname is not correctly handled by hfsplus driver. If an attempt to create a longname(>255) file/directory is made, it succeeds by creating a file/directory with HFSPLUS_MAX_STRLEN and incorrect catalog key. Thus leaving the volume in an inconsistent state. This patch fixes this issue. Although lookup is always called first to create a negative entry, so just doing a check in lookup would probably fix this issue. I choose to propagate error to other iops as well. Please NOTE: I have factored out hfsplus_cat_build_key_with_cnid from hfsplus_cat_build_key, to avoid unncessary branching. Thanks a lot. TEST: ------ dir="TEST_DIR" cdir=`pwd` name255="_123456789_123456789_123456789_123456789_123456789_123456789\ _123456789_123456789_123456789_123456789_123456789_123456789_123456789\ _123456789_123456789_123456789_123456789_123456789_123456789_123456789\ _123456789_123456789_123456789_123456789_123456789_1234" name256="${name255}5" mkdir $dir cd $dir touch $name255 rm -f $name255 touch $name256 ls -la cd $cdir rm -rf $dir RESULT: ------- [sougata@ultrabook tmp]$ cdir=`pwd` [sougata@ultrabook tmp]$ name255="_123456789_123456789_123456789_123456789_123456789_123456789\ > _123456789_123456789_123456789_123456789_123456789_123456789_123456789\ > _123456789_123456789_123456789_123456789_123456789_123456789_123456789\ > _123456789_123456789_123456789_123456789_123456789_1234" [sougata@ultrabook tmp]$ name256="${name255}5" [sougata@ultrabook tmp]$ [sougata@ultrabook tmp]$ mkdir $dir [sougata@ultrabook tmp]$ cd $dir [sougata@ultrabook TEST_DIR]$ touch $name255 [sougata@ultrabook TEST_DIR]$ rm -f $name255 [sougata@ultrabook TEST_DIR]$ touch $name256 [sougata@ultrabook TEST_DIR]$ ls -la ls: cannot access _123456789_123456789_123456789_123456789_123456789_123456789_123456789_123456789_123456789_123456789_123456789_123456789_123456789_123456789_123456789_123456789_123456789_123456789_123456789_123456789_123456789_123456789_123456789_123456789_123456789_1234: No such file or directory total 0 drwxrwxr-x 1 sougata sougata 3 Feb 20 19:56 . drwxrwxrwx 1 root root 6 Feb 20 19:56 .. -????????? ? ? ? ? ? _123456789_123456789_123456789_123456789_123456789_123456789_123456789_123456789_123456789_123456789_123456789_123456789_123456789_123456789_123456789_123456789_123456789_123456789_123456789_123456789_123456789_123456789_123456789_123456789_123456789_1234 [sougata@ultrabook TEST_DIR]$ cd $cdir [sougata@ultrabook tmp]$ rm -rf $dir rm: cannot remove `TEST_DIR': Directory not empty -ENAMETOOLONG returned from hfsplus_asc2uni was not propaged to iops. This allowed hfsplus to create files/directories with HFSPLUS_MAX_STRLEN and incorrect keys, leaving the FS in an inconsistent state. This patch fixes this issue. Signed-off-by: Sougata Santra <sougata@tuxera.com> Reviewed-by: Christoph Hellwig <hch@lst.de> Cc: Vyacheslav Dubeyko <slava@dubeyko.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2014-12-19 08:17:12 +08:00
err = hfsplus_cat_build_key(sb, fd.search_key, dir->i_ino,
&dentry->d_name);
if (unlikely(err < 0))
goto fail;
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-17 06:20:36 +08:00
again:
err = hfs_brec_read(&fd, &entry, sizeof(entry));
if (err) {
if (err == -ENOENT) {
hfs_find_exit(&fd);
/* No such entry */
inode = NULL;
goto out;
}
goto fail;
}
type = be16_to_cpu(entry.type);
if (type == HFSPLUS_FOLDER) {
if (fd.entrylength < sizeof(struct hfsplus_cat_folder)) {
err = -EIO;
goto fail;
}
cnid = be32_to_cpu(entry.folder.id);
dentry->d_fsdata = (void *)(unsigned long)cnid;
} else if (type == HFSPLUS_FILE) {
if (fd.entrylength < sizeof(struct hfsplus_cat_file)) {
err = -EIO;
goto fail;
}
cnid = be32_to_cpu(entry.file.id);
hfsplus: over 80 character lines clean-up Match coding style line length limitation where checkpatch.pl reported over-80-character-line warnings. Signed-off-by: Anton Salikhmetov <alexo@tuxera.com> Signed-off-by: Christoph Hellwig <hch@tuxera.com>
2010-12-17 00:08:38 +08:00
if (entry.file.user_info.fdType ==
cpu_to_be32(HFSP_HARDLINK_TYPE) &&
entry.file.user_info.fdCreator ==
cpu_to_be32(HFSP_HFSPLUS_CREATOR) &&
hfsplus: fix NULL dereference in hfsplus_lookup() An HFS+ filesystem can be mounted read-only without having a metadata directory, which is needed to support hardlinks. But if the catalog data is corrupted, a directory lookup may still find dentries claiming to be hardlinks. hfsplus_lookup() does check that ->hidden_dir is not NULL in such a situation, but mistakenly does so after dereferencing it for the first time. Reorder this check to prevent a crash. This happens when looking up corrupted catalog data (dentry) on a filesystem with no metadata directory (this could only ever happen on a read-only mount). Wen Xu sent the replication steps in detail to the fsdevel list: https://bugzilla.kernel.org/show_bug.cgi?id=200297 Link: http://lkml.kernel.org/r/20180712215344.q44dyrhymm4ajkao@eaf Signed-off-by: Ernesto A. Fernández <ernesto.mnd.fernandez@gmail.com> Reported-by: Wen Xu <wen.xu@gatech.edu> Cc: Viacheslav Dubeyko <slava@dubeyko.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2018-08-24 08:00:25 +08:00
HFSPLUS_SB(sb)->hidden_dir &&
hfsplus: over 80 character lines clean-up Match coding style line length limitation where checkpatch.pl reported over-80-character-line warnings. Signed-off-by: Anton Salikhmetov <alexo@tuxera.com> Signed-off-by: Christoph Hellwig <hch@tuxera.com>
2010-12-17 00:08:38 +08:00
(entry.file.create_date ==
HFSPLUS_I(HFSPLUS_SB(sb)->hidden_dir)->
create_date ||
entry.file.create_date ==
VFS: normal filesystems (and lustre): d_inode() annotations that's the bulk of filesystem drivers dealing with inodes of their own Signed-off-by: David Howells <dhowells@redhat.com> Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2015-03-18 06:25:59 +08:00
HFSPLUS_I(d_inode(sb->s_root))->
hfsplus: fix NULL dereference in hfsplus_lookup() An HFS+ filesystem can be mounted read-only without having a metadata directory, which is needed to support hardlinks. But if the catalog data is corrupted, a directory lookup may still find dentries claiming to be hardlinks. hfsplus_lookup() does check that ->hidden_dir is not NULL in such a situation, but mistakenly does so after dereferencing it for the first time. Reorder this check to prevent a crash. This happens when looking up corrupted catalog data (dentry) on a filesystem with no metadata directory (this could only ever happen on a read-only mount). Wen Xu sent the replication steps in detail to the fsdevel list: https://bugzilla.kernel.org/show_bug.cgi?id=200297 Link: http://lkml.kernel.org/r/20180712215344.q44dyrhymm4ajkao@eaf Signed-off-by: Ernesto A. Fernández <ernesto.mnd.fernandez@gmail.com> Reported-by: Wen Xu <wen.xu@gatech.edu> Cc: Viacheslav Dubeyko <slava@dubeyko.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2018-08-24 08:00:25 +08:00
create_date)) {
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-17 06:20:36 +08:00
struct qstr str;
char name[32];
if (dentry->d_fsdata) {
[PATCH] hfs: set correct create date for links HFS+ also requires the correct creation date so recent version of OS X recognize it as link. Improve link handling: - if something is wrong with the link, ignore the link attribute and treat it as regular file (this also fixes a missing unlock during lookup). - check for incorrect link counts during unlink. Signed-off-by: Roman Zippel <zippel@linux-m68k.org> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-01-19 09:43:10 +08:00
/*
* We found a link pointing to another link,
* so ignore it and treat it as regular file.
*/
cnid = (unsigned long)dentry->d_fsdata;
linkid = 0;
} else {
dentry->d_fsdata = (void *)(unsigned long)cnid;
hfsplus: over 80 character lines clean-up Match coding style line length limitation where checkpatch.pl reported over-80-character-line warnings. Signed-off-by: Anton Salikhmetov <alexo@tuxera.com> Signed-off-by: Christoph Hellwig <hch@tuxera.com>
2010-12-17 00:08:38 +08:00
linkid =
be32_to_cpu(entry.file.permissions.dev);
[PATCH] hfs: set correct create date for links HFS+ also requires the correct creation date so recent version of OS X recognize it as link. Improve link handling: - if something is wrong with the link, ignore the link attribute and treat it as regular file (this also fixes a missing unlock during lookup). - check for incorrect link counts during unlink. Signed-off-by: Roman Zippel <zippel@linux-m68k.org> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-01-19 09:43:10 +08:00
str.len = sprintf(name, "iNode%d", linkid);
str.name = name;
hfsplus: fix longname handling Longname is not correctly handled by hfsplus driver. If an attempt to create a longname(>255) file/directory is made, it succeeds by creating a file/directory with HFSPLUS_MAX_STRLEN and incorrect catalog key. Thus leaving the volume in an inconsistent state. This patch fixes this issue. Although lookup is always called first to create a negative entry, so just doing a check in lookup would probably fix this issue. I choose to propagate error to other iops as well. Please NOTE: I have factored out hfsplus_cat_build_key_with_cnid from hfsplus_cat_build_key, to avoid unncessary branching. Thanks a lot. TEST: ------ dir="TEST_DIR" cdir=`pwd` name255="_123456789_123456789_123456789_123456789_123456789_123456789\ _123456789_123456789_123456789_123456789_123456789_123456789_123456789\ _123456789_123456789_123456789_123456789_123456789_123456789_123456789\ _123456789_123456789_123456789_123456789_123456789_1234" name256="${name255}5" mkdir $dir cd $dir touch $name255 rm -f $name255 touch $name256 ls -la cd $cdir rm -rf $dir RESULT: ------- [sougata@ultrabook tmp]$ cdir=`pwd` [sougata@ultrabook tmp]$ name255="_123456789_123456789_123456789_123456789_123456789_123456789\ > _123456789_123456789_123456789_123456789_123456789_123456789_123456789\ > _123456789_123456789_123456789_123456789_123456789_123456789_123456789\ > _123456789_123456789_123456789_123456789_123456789_1234" [sougata@ultrabook tmp]$ name256="${name255}5" [sougata@ultrabook tmp]$ [sougata@ultrabook tmp]$ mkdir $dir [sougata@ultrabook tmp]$ cd $dir [sougata@ultrabook TEST_DIR]$ touch $name255 [sougata@ultrabook TEST_DIR]$ rm -f $name255 [sougata@ultrabook TEST_DIR]$ touch $name256 [sougata@ultrabook TEST_DIR]$ ls -la ls: cannot access _123456789_123456789_123456789_123456789_123456789_123456789_123456789_123456789_123456789_123456789_123456789_123456789_123456789_123456789_123456789_123456789_123456789_123456789_123456789_123456789_123456789_123456789_123456789_123456789_123456789_1234: No such file or directory total 0 drwxrwxr-x 1 sougata sougata 3 Feb 20 19:56 . drwxrwxrwx 1 root root 6 Feb 20 19:56 .. -????????? ? ? ? ? ? _123456789_123456789_123456789_123456789_123456789_123456789_123456789_123456789_123456789_123456789_123456789_123456789_123456789_123456789_123456789_123456789_123456789_123456789_123456789_123456789_123456789_123456789_123456789_123456789_123456789_1234 [sougata@ultrabook TEST_DIR]$ cd $cdir [sougata@ultrabook tmp]$ rm -rf $dir rm: cannot remove `TEST_DIR': Directory not empty -ENAMETOOLONG returned from hfsplus_asc2uni was not propaged to iops. This allowed hfsplus to create files/directories with HFSPLUS_MAX_STRLEN and incorrect keys, leaving the FS in an inconsistent state. This patch fixes this issue. Signed-off-by: Sougata Santra <sougata@tuxera.com> Reviewed-by: Christoph Hellwig <hch@lst.de> Cc: Vyacheslav Dubeyko <slava@dubeyko.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2014-12-19 08:17:12 +08:00
err = hfsplus_cat_build_key(sb, fd.search_key,
hfsplus: over 80 character lines clean-up Match coding style line length limitation where checkpatch.pl reported over-80-character-line warnings. Signed-off-by: Anton Salikhmetov <alexo@tuxera.com> Signed-off-by: Christoph Hellwig <hch@tuxera.com>
2010-12-17 00:08:38 +08:00
HFSPLUS_SB(sb)->hidden_dir->i_ino,
&str);
hfsplus: fix longname handling Longname is not correctly handled by hfsplus driver. If an attempt to create a longname(>255) file/directory is made, it succeeds by creating a file/directory with HFSPLUS_MAX_STRLEN and incorrect catalog key. Thus leaving the volume in an inconsistent state. This patch fixes this issue. Although lookup is always called first to create a negative entry, so just doing a check in lookup would probably fix this issue. I choose to propagate error to other iops as well. Please NOTE: I have factored out hfsplus_cat_build_key_with_cnid from hfsplus_cat_build_key, to avoid unncessary branching. Thanks a lot. TEST: ------ dir="TEST_DIR" cdir=`pwd` name255="_123456789_123456789_123456789_123456789_123456789_123456789\ _123456789_123456789_123456789_123456789_123456789_123456789_123456789\ _123456789_123456789_123456789_123456789_123456789_123456789_123456789\ _123456789_123456789_123456789_123456789_123456789_1234" name256="${name255}5" mkdir $dir cd $dir touch $name255 rm -f $name255 touch $name256 ls -la cd $cdir rm -rf $dir RESULT: ------- [sougata@ultrabook tmp]$ cdir=`pwd` [sougata@ultrabook tmp]$ name255="_123456789_123456789_123456789_123456789_123456789_123456789\ > _123456789_123456789_123456789_123456789_123456789_123456789_123456789\ > _123456789_123456789_123456789_123456789_123456789_123456789_123456789\ > _123456789_123456789_123456789_123456789_123456789_1234" [sougata@ultrabook tmp]$ name256="${name255}5" [sougata@ultrabook tmp]$ [sougata@ultrabook tmp]$ mkdir $dir [sougata@ultrabook tmp]$ cd $dir [sougata@ultrabook TEST_DIR]$ touch $name255 [sougata@ultrabook TEST_DIR]$ rm -f $name255 [sougata@ultrabook TEST_DIR]$ touch $name256 [sougata@ultrabook TEST_DIR]$ ls -la ls: cannot access _123456789_123456789_123456789_123456789_123456789_123456789_123456789_123456789_123456789_123456789_123456789_123456789_123456789_123456789_123456789_123456789_123456789_123456789_123456789_123456789_123456789_123456789_123456789_123456789_123456789_1234: No such file or directory total 0 drwxrwxr-x 1 sougata sougata 3 Feb 20 19:56 . drwxrwxrwx 1 root root 6 Feb 20 19:56 .. -????????? ? ? ? ? ? _123456789_123456789_123456789_123456789_123456789_123456789_123456789_123456789_123456789_123456789_123456789_123456789_123456789_123456789_123456789_123456789_123456789_123456789_123456789_123456789_123456789_123456789_123456789_123456789_123456789_1234 [sougata@ultrabook TEST_DIR]$ cd $cdir [sougata@ultrabook tmp]$ rm -rf $dir rm: cannot remove `TEST_DIR': Directory not empty -ENAMETOOLONG returned from hfsplus_asc2uni was not propaged to iops. This allowed hfsplus to create files/directories with HFSPLUS_MAX_STRLEN and incorrect keys, leaving the FS in an inconsistent state. This patch fixes this issue. Signed-off-by: Sougata Santra <sougata@tuxera.com> Reviewed-by: Christoph Hellwig <hch@lst.de> Cc: Vyacheslav Dubeyko <slava@dubeyko.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2014-12-19 08:17:12 +08:00
if (unlikely(err < 0))
goto fail;
[PATCH] hfs: set correct create date for links HFS+ also requires the correct creation date so recent version of OS X recognize it as link. Improve link handling: - if something is wrong with the link, ignore the link attribute and treat it as regular file (this also fixes a missing unlock during lookup). - check for incorrect link counts during unlink. Signed-off-by: Roman Zippel <zippel@linux-m68k.org> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-01-19 09:43:10 +08:00
goto again;
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-17 06:20:36 +08:00
}
} else if (!dentry->d_fsdata)
dentry->d_fsdata = (void *)(unsigned long)cnid;
} else {
hfs/hfsplus: convert printks to pr_<level> Use a more current logging style. Add #define pr_fmt(fmt) KBUILD_MODNAME ": " fmt hfsplus now uses "hfsplus: " for all messages. Coalesce formats. Prefix debugging messages too. Signed-off-by: Joe Perches <joe@perches.com> Cc: Vyacheslav Dubeyko <slava@dubeyko.com> Cc: Hin-Tak Leung <htl10@users.sourceforge.net> Cc: Christoph Hellwig <hch@infradead.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2013-05-01 06:27:55 +08:00
pr_err("invalid catalog entry type in lookup\n");
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-17 06:20:36 +08:00
err = -EIO;
goto fail;
}
hfs_find_exit(&fd);
iget: stop HFSPLUS from using iget() and read_inode() Stop the HFSPLUS filesystem from using iget() and read_inode(). Replace hfsplus_read_inode() with hfsplus_iget(), and call that instead of iget(). hfsplus_iget() then uses iget_locked() directly and returns a proper error code instead of an inode in the event of an error. hfsplus_fill_super() returns any error incurred when getting the root inode. Signed-off-by: David Howells <dhowells@redhat.com> Cc: Roman Zippel <zippel@linux-m68k.org> Acked-by: Christoph Hellwig <hch@lst.de> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2008-02-07 16:15:40 +08:00
inode = hfsplus_iget(dir->i_sb, cnid);
if (IS_ERR(inode))
return ERR_CAST(inode);
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-17 06:20:36 +08:00
if (S_ISREG(inode->i_mode))
hfsplus: fix link corruption HFS implements hardlink by using indirect catalog entries that refer to a hidden directly. The link target is cached in the dev field in the HFS+ specific inode, which is also used for the device number for device files, and inside for passing the nlink value of the indirect node from hfsplus_cat_write_inode to a helper function. Now if we happen to write out the indirect node while hfsplus_link is creating the catalog entry we'll get a link pointing to the linkid of the current nlink value. This can easily be reproduced by a large enough loop of local git-clone operations. Stop abusing the dev field in the HFS+ inode for short term storage by refactoring the way the permission structure in the catalog entry is set up, and rename the dev field to linkid to avoid any confusion. While we're at it also prevent creating hard links to special files, as the HFS+ dev and linkid share the same space in the on-disk structure. Signed-off-by: Christoph Hellwig <hch@tuxera.com>
2010-10-14 21:54:28 +08:00
HFSPLUS_I(inode)->linkid = linkid;
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-17 06:20:36 +08:00
out:
hfsplus: switch to d_splice_alias() Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2018-05-03 21:49:02 +08:00
return d_splice_alias(inode, dentry);
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-17 06:20:36 +08:00
fail:
hfs_find_exit(&fd);
return ERR_PTR(err);
}
[readdir] convert hfsplus Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2013-05-23 02:59:39 +08:00
static int hfsplus_readdir(struct file *file, struct dir_context *ctx)
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-17 06:20:36 +08:00
{
[readdir] convert hfsplus Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2013-05-23 02:59:39 +08:00
struct inode *inode = file_inode(file);
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-17 06:20:36 +08:00
struct super_block *sb = inode->i_sb;
int len, err;
hfsplus: fix worst-case unicode to char conversion of file names and attributes This is a series of 3 patches which corrects issues in HFS+ concerning the use of non-english file names and attributes. Names and attributes are stored internally as UTF-16 units up to a fixed maximum size, and convert to and from user-representation by NLS. The code incorrectly assume that NLS string lengths are equal to unicode lengths, which is only true for English ascii usage. This patch (of 3): The HFS Plus Volume Format specification (TN1150) states that file names are stored internally as a maximum of 255 unicode characters, as defined by The Unicode Standard, Version 2.0 [Unicode, Inc. ISBN 0-201-48345-9]. File names are converted by the NLS system on Linux before presented to the user. 255 CJK characters converts to UTF-8 with 1 unicode character to up to 3 bytes, and to GB18030 with 1 unicode character to up to 4 bytes. Thus, trying in a UTF-8 locale to list files with names of more than 85 CJK characters results in: $ ls /mnt ls: reading directory /mnt: File name too long The receiving buffer to hfsplus_uni2asc() needs to be 255 x NLS_MAX_CHARSET_SIZE bytes, not 255 bytes as the code has always been. Similar consideration applies to attributes, which are stored internally as a maximum of 127 UTF-16BE units. See XNU source for an up-to-date reference on attributes. Strictly speaking, the maximum value of NLS_MAX_CHARSET_SIZE = 6 is not attainable in the case of conversion to UTF-8, as going beyond 3 bytes requires the use of surrogate pairs, i.e. consuming two input units. Thanks Anton Altaparmakov for reviewing an earlier version of this change. This patch fixes all callers of hfsplus_uni2asc(), and also enables the use of long non-English file names in HFS+. The getting and setting, and general usage of long non-English attributes requires further forthcoming work, in the following patches of this series. [akpm@linux-foundation.org: fix build] Signed-off-by: Hin-Tak Leung <htl10@users.sourceforge.net> Reviewed-by: Anton Altaparmakov <anton@tuxera.com> Cc: Vyacheslav Dubeyko <slava@dubeyko.com> Cc: Al Viro <viro@zeniv.linux.org.uk> Cc: Christoph Hellwig <hch@infradead.org> Cc: Sougata Santra <sougata@tuxera.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2014-06-07 05:36:21 +08:00
char *strbuf;
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-17 06:20:36 +08:00
hfsplus_cat_entry entry;
struct hfs_find_data fd;
struct hfsplus_readdir_data *rd;
u16 type;
[readdir] convert hfsplus Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2013-05-23 02:59:39 +08:00
if (file->f_pos >= inode->i_size)
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-17 06:20:36 +08:00
return 0;
hfsplus: add error checking for hfs_find_init() hfs_find_init() may fail with ENOMEM, but there are places, where the returned value is not checked. The consequences can be very unpleasant, e.g. kfree uninitialized pointer and inappropriate mutex unlocking. The patch adds checks for errors in hfs_find_init(). Found by Linux Driver Verification project (linuxtesting.org). Signed-off-by: Alexey Khoroshilov <khoroshilov@ispras.ru> Signed-off-by: Christoph Hellwig <hch@lst.de>
2011-07-06 06:29:59 +08:00
err = hfs_find_init(HFSPLUS_SB(sb)->cat_tree, &fd);
if (err)
return err;
hfsplus: fix worst-case unicode to char conversion of file names and attributes This is a series of 3 patches which corrects issues in HFS+ concerning the use of non-english file names and attributes. Names and attributes are stored internally as UTF-16 units up to a fixed maximum size, and convert to and from user-representation by NLS. The code incorrectly assume that NLS string lengths are equal to unicode lengths, which is only true for English ascii usage. This patch (of 3): The HFS Plus Volume Format specification (TN1150) states that file names are stored internally as a maximum of 255 unicode characters, as defined by The Unicode Standard, Version 2.0 [Unicode, Inc. ISBN 0-201-48345-9]. File names are converted by the NLS system on Linux before presented to the user. 255 CJK characters converts to UTF-8 with 1 unicode character to up to 3 bytes, and to GB18030 with 1 unicode character to up to 4 bytes. Thus, trying in a UTF-8 locale to list files with names of more than 85 CJK characters results in: $ ls /mnt ls: reading directory /mnt: File name too long The receiving buffer to hfsplus_uni2asc() needs to be 255 x NLS_MAX_CHARSET_SIZE bytes, not 255 bytes as the code has always been. Similar consideration applies to attributes, which are stored internally as a maximum of 127 UTF-16BE units. See XNU source for an up-to-date reference on attributes. Strictly speaking, the maximum value of NLS_MAX_CHARSET_SIZE = 6 is not attainable in the case of conversion to UTF-8, as going beyond 3 bytes requires the use of surrogate pairs, i.e. consuming two input units. Thanks Anton Altaparmakov for reviewing an earlier version of this change. This patch fixes all callers of hfsplus_uni2asc(), and also enables the use of long non-English file names in HFS+. The getting and setting, and general usage of long non-English attributes requires further forthcoming work, in the following patches of this series. [akpm@linux-foundation.org: fix build] Signed-off-by: Hin-Tak Leung <htl10@users.sourceforge.net> Reviewed-by: Anton Altaparmakov <anton@tuxera.com> Cc: Vyacheslav Dubeyko <slava@dubeyko.com> Cc: Al Viro <viro@zeniv.linux.org.uk> Cc: Christoph Hellwig <hch@infradead.org> Cc: Sougata Santra <sougata@tuxera.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2014-06-07 05:36:21 +08:00
strbuf = kmalloc(NLS_MAX_CHARSET_SIZE * HFSPLUS_MAX_STRLEN + 1, GFP_KERNEL);
if (!strbuf) {
err = -ENOMEM;
goto out;
}
hfsplus: fix longname handling Longname is not correctly handled by hfsplus driver. If an attempt to create a longname(>255) file/directory is made, it succeeds by creating a file/directory with HFSPLUS_MAX_STRLEN and incorrect catalog key. Thus leaving the volume in an inconsistent state. This patch fixes this issue. Although lookup is always called first to create a negative entry, so just doing a check in lookup would probably fix this issue. I choose to propagate error to other iops as well. Please NOTE: I have factored out hfsplus_cat_build_key_with_cnid from hfsplus_cat_build_key, to avoid unncessary branching. Thanks a lot. TEST: ------ dir="TEST_DIR" cdir=`pwd` name255="_123456789_123456789_123456789_123456789_123456789_123456789\ _123456789_123456789_123456789_123456789_123456789_123456789_123456789\ _123456789_123456789_123456789_123456789_123456789_123456789_123456789\ _123456789_123456789_123456789_123456789_123456789_1234" name256="${name255}5" mkdir $dir cd $dir touch $name255 rm -f $name255 touch $name256 ls -la cd $cdir rm -rf $dir RESULT: ------- [sougata@ultrabook tmp]$ cdir=`pwd` [sougata@ultrabook tmp]$ name255="_123456789_123456789_123456789_123456789_123456789_123456789\ > _123456789_123456789_123456789_123456789_123456789_123456789_123456789\ > _123456789_123456789_123456789_123456789_123456789_123456789_123456789\ > _123456789_123456789_123456789_123456789_123456789_1234" [sougata@ultrabook tmp]$ name256="${name255}5" [sougata@ultrabook tmp]$ [sougata@ultrabook tmp]$ mkdir $dir [sougata@ultrabook tmp]$ cd $dir [sougata@ultrabook TEST_DIR]$ touch $name255 [sougata@ultrabook TEST_DIR]$ rm -f $name255 [sougata@ultrabook TEST_DIR]$ touch $name256 [sougata@ultrabook TEST_DIR]$ ls -la ls: cannot access _123456789_123456789_123456789_123456789_123456789_123456789_123456789_123456789_123456789_123456789_123456789_123456789_123456789_123456789_123456789_123456789_123456789_123456789_123456789_123456789_123456789_123456789_123456789_123456789_123456789_1234: No such file or directory total 0 drwxrwxr-x 1 sougata sougata 3 Feb 20 19:56 . drwxrwxrwx 1 root root 6 Feb 20 19:56 .. -????????? ? ? ? ? ? _123456789_123456789_123456789_123456789_123456789_123456789_123456789_123456789_123456789_123456789_123456789_123456789_123456789_123456789_123456789_123456789_123456789_123456789_123456789_123456789_123456789_123456789_123456789_123456789_123456789_1234 [sougata@ultrabook TEST_DIR]$ cd $cdir [sougata@ultrabook tmp]$ rm -rf $dir rm: cannot remove `TEST_DIR': Directory not empty -ENAMETOOLONG returned from hfsplus_asc2uni was not propaged to iops. This allowed hfsplus to create files/directories with HFSPLUS_MAX_STRLEN and incorrect keys, leaving the FS in an inconsistent state. This patch fixes this issue. Signed-off-by: Sougata Santra <sougata@tuxera.com> Reviewed-by: Christoph Hellwig <hch@lst.de> Cc: Vyacheslav Dubeyko <slava@dubeyko.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2014-12-19 08:17:12 +08:00
hfsplus_cat_build_key_with_cnid(sb, fd.search_key, inode->i_ino);
hfsplus: add support of manipulation by attributes file Add support of manipulation by attributes file. Signed-off-by: Vyacheslav Dubeyko <slava@dubeyko.com> Reported-by: Hin-Tak Leung <htl10@users.sourceforge.net> Cc: Al Viro <viro@zeniv.linux.org.uk> Cc: Christoph Hellwig <hch@lst.de> Cc: Jan Kara <jack@suse.cz> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2013-02-28 09:03:04 +08:00
err = hfs_brec_find(&fd, hfs_find_rec_by_key);
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-17 06:20:36 +08:00
if (err)
goto out;
[readdir] convert hfsplus Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2013-05-23 02:59:39 +08:00
if (ctx->pos == 0) {
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-17 06:20:36 +08:00
/* This is completely artificial... */
[readdir] convert hfsplus Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2013-05-23 02:59:39 +08:00
if (!dir_emit_dot(file, ctx))
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-17 06:20:36 +08:00
goto out;
[readdir] convert hfsplus Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2013-05-23 02:59:39 +08:00
ctx->pos = 1;
}
if (ctx->pos == 1) {
hfsplus: Fix potential buffer overflows Commit ec81aecb2966 ("hfs: fix a potential buffer overflow") fixed a few potential buffer overflows in the hfs filesystem. But as Timo Warns pointed out, these changes also need to be made on the hfsplus filesystem as well. Reported-by: Timo Warns <warns@pre-sense.de> Acked-by: WANG Cong <amwang@redhat.com> Cc: Alexey Khoroshilov <khoroshilov@ispras.ru> Cc: Miklos Szeredi <mszeredi@suse.cz> Cc: Sage Weil <sage@newdream.net> Cc: Eugene Teo <eteo@redhat.com> Cc: Roman Zippel <zippel@linux-m68k.org> Cc: Al Viro <viro@zeniv.linux.org.uk> Cc: Christoph Hellwig <hch@lst.de> Cc: Alexey Dobriyan <adobriyan@gmail.com> Cc: Dave Anderson <anderson@redhat.com> Cc: stable <stable@vger.kernel.org> Cc: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2012-05-05 03:09:39 +08:00
if (fd.entrylength > sizeof(entry) || fd.entrylength < 0) {
err = -EIO;
goto out;
}
hfsplus: over 80 character lines clean-up Match coding style line length limitation where checkpatch.pl reported over-80-character-line warnings. Signed-off-by: Anton Salikhmetov <alexo@tuxera.com> Signed-off-by: Christoph Hellwig <hch@tuxera.com>
2010-12-17 00:08:38 +08:00
hfs_bnode_read(fd.bnode, &entry, fd.entryoffset,
fd.entrylength);
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-17 06:20:36 +08:00
if (be16_to_cpu(entry.type) != HFSPLUS_FOLDER_THREAD) {
hfs/hfsplus: convert printks to pr_<level> Use a more current logging style. Add #define pr_fmt(fmt) KBUILD_MODNAME ": " fmt hfsplus now uses "hfsplus: " for all messages. Coalesce formats. Prefix debugging messages too. Signed-off-by: Joe Perches <joe@perches.com> Cc: Vyacheslav Dubeyko <slava@dubeyko.com> Cc: Hin-Tak Leung <htl10@users.sourceforge.net> Cc: Christoph Hellwig <hch@infradead.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2013-05-01 06:27:55 +08:00
pr_err("bad catalog folder thread\n");
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-17 06:20:36 +08:00
err = -EIO;
goto out;
}
if (fd.entrylength < HFSPLUS_MIN_THREAD_SZ) {
hfs/hfsplus: convert printks to pr_<level> Use a more current logging style. Add #define pr_fmt(fmt) KBUILD_MODNAME ": " fmt hfsplus now uses "hfsplus: " for all messages. Coalesce formats. Prefix debugging messages too. Signed-off-by: Joe Perches <joe@perches.com> Cc: Vyacheslav Dubeyko <slava@dubeyko.com> Cc: Hin-Tak Leung <htl10@users.sourceforge.net> Cc: Christoph Hellwig <hch@infradead.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2013-05-01 06:27:55 +08:00
pr_err("truncated catalog thread\n");
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-17 06:20:36 +08:00
err = -EIO;
goto out;
}
[readdir] convert hfsplus Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2013-05-23 02:59:39 +08:00
if (!dir_emit(ctx, "..", 2,
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-17 06:20:36 +08:00
be32_to_cpu(entry.thread.parentID), DT_DIR))
goto out;
[readdir] convert hfsplus Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2013-05-23 02:59:39 +08:00
ctx->pos = 2;
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-17 06:20:36 +08:00
}
[readdir] convert hfsplus Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2013-05-23 02:59:39 +08:00
if (ctx->pos >= inode->i_size)
goto out;
err = hfs_brec_goto(&fd, ctx->pos - 1);
if (err)
goto out;
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-17 06:20:36 +08:00
for (;;) {
if (be32_to_cpu(fd.key->cat.parent) != inode->i_ino) {
hfs/hfsplus: convert printks to pr_<level> Use a more current logging style. Add #define pr_fmt(fmt) KBUILD_MODNAME ": " fmt hfsplus now uses "hfsplus: " for all messages. Coalesce formats. Prefix debugging messages too. Signed-off-by: Joe Perches <joe@perches.com> Cc: Vyacheslav Dubeyko <slava@dubeyko.com> Cc: Hin-Tak Leung <htl10@users.sourceforge.net> Cc: Christoph Hellwig <hch@infradead.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2013-05-01 06:27:55 +08:00
pr_err("walked past end of dir\n");
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-17 06:20:36 +08:00
err = -EIO;
goto out;
}
hfsplus: Fix potential buffer overflows Commit ec81aecb2966 ("hfs: fix a potential buffer overflow") fixed a few potential buffer overflows in the hfs filesystem. But as Timo Warns pointed out, these changes also need to be made on the hfsplus filesystem as well. Reported-by: Timo Warns <warns@pre-sense.de> Acked-by: WANG Cong <amwang@redhat.com> Cc: Alexey Khoroshilov <khoroshilov@ispras.ru> Cc: Miklos Szeredi <mszeredi@suse.cz> Cc: Sage Weil <sage@newdream.net> Cc: Eugene Teo <eteo@redhat.com> Cc: Roman Zippel <zippel@linux-m68k.org> Cc: Al Viro <viro@zeniv.linux.org.uk> Cc: Christoph Hellwig <hch@lst.de> Cc: Alexey Dobriyan <adobriyan@gmail.com> Cc: Dave Anderson <anderson@redhat.com> Cc: stable <stable@vger.kernel.org> Cc: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2012-05-05 03:09:39 +08:00
if (fd.entrylength > sizeof(entry) || fd.entrylength < 0) {
err = -EIO;
goto out;
}
hfsplus: over 80 character lines clean-up Match coding style line length limitation where checkpatch.pl reported over-80-character-line warnings. Signed-off-by: Anton Salikhmetov <alexo@tuxera.com> Signed-off-by: Christoph Hellwig <hch@tuxera.com>
2010-12-17 00:08:38 +08:00
hfs_bnode_read(fd.bnode, &entry, fd.entryoffset,
fd.entrylength);
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-17 06:20:36 +08:00
type = be16_to_cpu(entry.type);
hfsplus: fix worst-case unicode to char conversion of file names and attributes This is a series of 3 patches which corrects issues in HFS+ concerning the use of non-english file names and attributes. Names and attributes are stored internally as UTF-16 units up to a fixed maximum size, and convert to and from user-representation by NLS. The code incorrectly assume that NLS string lengths are equal to unicode lengths, which is only true for English ascii usage. This patch (of 3): The HFS Plus Volume Format specification (TN1150) states that file names are stored internally as a maximum of 255 unicode characters, as defined by The Unicode Standard, Version 2.0 [Unicode, Inc. ISBN 0-201-48345-9]. File names are converted by the NLS system on Linux before presented to the user. 255 CJK characters converts to UTF-8 with 1 unicode character to up to 3 bytes, and to GB18030 with 1 unicode character to up to 4 bytes. Thus, trying in a UTF-8 locale to list files with names of more than 85 CJK characters results in: $ ls /mnt ls: reading directory /mnt: File name too long The receiving buffer to hfsplus_uni2asc() needs to be 255 x NLS_MAX_CHARSET_SIZE bytes, not 255 bytes as the code has always been. Similar consideration applies to attributes, which are stored internally as a maximum of 127 UTF-16BE units. See XNU source for an up-to-date reference on attributes. Strictly speaking, the maximum value of NLS_MAX_CHARSET_SIZE = 6 is not attainable in the case of conversion to UTF-8, as going beyond 3 bytes requires the use of surrogate pairs, i.e. consuming two input units. Thanks Anton Altaparmakov for reviewing an earlier version of this change. This patch fixes all callers of hfsplus_uni2asc(), and also enables the use of long non-English file names in HFS+. The getting and setting, and general usage of long non-English attributes requires further forthcoming work, in the following patches of this series. [akpm@linux-foundation.org: fix build] Signed-off-by: Hin-Tak Leung <htl10@users.sourceforge.net> Reviewed-by: Anton Altaparmakov <anton@tuxera.com> Cc: Vyacheslav Dubeyko <slava@dubeyko.com> Cc: Al Viro <viro@zeniv.linux.org.uk> Cc: Christoph Hellwig <hch@infradead.org> Cc: Sougata Santra <sougata@tuxera.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2014-06-07 05:36:21 +08:00
len = NLS_MAX_CHARSET_SIZE * HFSPLUS_MAX_STRLEN;
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-17 06:20:36 +08:00
err = hfsplus_uni2asc(sb, &fd.key->cat.name, strbuf, &len);
if (err)
goto out;
if (type == HFSPLUS_FOLDER) {
hfsplus: over 80 character lines clean-up Match coding style line length limitation where checkpatch.pl reported over-80-character-line warnings. Signed-off-by: Anton Salikhmetov <alexo@tuxera.com> Signed-off-by: Christoph Hellwig <hch@tuxera.com>
2010-12-17 00:08:38 +08:00
if (fd.entrylength <
sizeof(struct hfsplus_cat_folder)) {
hfs/hfsplus: convert printks to pr_<level> Use a more current logging style. Add #define pr_fmt(fmt) KBUILD_MODNAME ": " fmt hfsplus now uses "hfsplus: " for all messages. Coalesce formats. Prefix debugging messages too. Signed-off-by: Joe Perches <joe@perches.com> Cc: Vyacheslav Dubeyko <slava@dubeyko.com> Cc: Hin-Tak Leung <htl10@users.sourceforge.net> Cc: Christoph Hellwig <hch@infradead.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2013-05-01 06:27:55 +08:00
pr_err("small dir entry\n");
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-17 06:20:36 +08:00
err = -EIO;
goto out;
}
hfsplus: fix HFSPLUS_SB calling convention HFSPLUS_SB doesn't return a pointer to the hfsplus-specific superblock information like all other FOO_SB macros, but dereference the pointer in a way that made it look like a direct struct derefence. This only works as long as the HFSPLUS_SB macro is used directly and prevents us from keepig a local hfsplus_sb_info pointer. Fix the calling convention and introduce a local sbi variable in all functions that use it constantly. Signed-off-by: Christoph Hellwig <hch@tuxera.com>
2010-10-01 11:42:59 +08:00
if (HFSPLUS_SB(sb)->hidden_dir &&
HFSPLUS_SB(sb)->hidden_dir->i_ino ==
be32_to_cpu(entry.folder.id))
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-17 06:20:36 +08:00
goto next;
[readdir] convert hfsplus Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2013-05-23 02:59:39 +08:00
if (!dir_emit(ctx, strbuf, len,
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-17 06:20:36 +08:00
be32_to_cpu(entry.folder.id), DT_DIR))
break;
} else if (type == HFSPLUS_FILE) {
hfsplus: emit proper file type from readdir hfsplus_readdir() incorrectly returned DT_REG for symbolic links and special files. Return DT_REG, DT_LNK, DT_FIFO, DT_CHR, DT_BLK, DT_SOCK, or DT_UNKNOWN according to mode field in catalog record. Programs relying on information from readdir will now work correctly with HFS+. Signed-off-by: Sergei Antonov <saproj@gmail.com> Cc: Anton Altaparmakov <aia21@cam.ac.uk> Cc: Al Viro <viro@zeniv.linux.org.uk> Cc: Christoph Hellwig <hch@infradead.org> Cc: Vyacheslav Dubeyko <slava@dubeyko.com> Cc: Hin-Tak Leung <htl10@users.sourceforge.net> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2014-06-07 05:36:24 +08:00
u16 mode;
unsigned type = DT_UNKNOWN;
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-17 06:20:36 +08:00
if (fd.entrylength < sizeof(struct hfsplus_cat_file)) {
hfs/hfsplus: convert printks to pr_<level> Use a more current logging style. Add #define pr_fmt(fmt) KBUILD_MODNAME ": " fmt hfsplus now uses "hfsplus: " for all messages. Coalesce formats. Prefix debugging messages too. Signed-off-by: Joe Perches <joe@perches.com> Cc: Vyacheslav Dubeyko <slava@dubeyko.com> Cc: Hin-Tak Leung <htl10@users.sourceforge.net> Cc: Christoph Hellwig <hch@infradead.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2013-05-01 06:27:55 +08:00
pr_err("small file entry\n");
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-17 06:20:36 +08:00
err = -EIO;
goto out;
}
hfsplus: emit proper file type from readdir hfsplus_readdir() incorrectly returned DT_REG for symbolic links and special files. Return DT_REG, DT_LNK, DT_FIFO, DT_CHR, DT_BLK, DT_SOCK, or DT_UNKNOWN according to mode field in catalog record. Programs relying on information from readdir will now work correctly with HFS+. Signed-off-by: Sergei Antonov <saproj@gmail.com> Cc: Anton Altaparmakov <aia21@cam.ac.uk> Cc: Al Viro <viro@zeniv.linux.org.uk> Cc: Christoph Hellwig <hch@infradead.org> Cc: Vyacheslav Dubeyko <slava@dubeyko.com> Cc: Hin-Tak Leung <htl10@users.sourceforge.net> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2014-06-07 05:36:24 +08:00
mode = be16_to_cpu(entry.file.permissions.mode);
if (S_ISREG(mode))
type = DT_REG;
else if (S_ISLNK(mode))
type = DT_LNK;
else if (S_ISFIFO(mode))
type = DT_FIFO;
else if (S_ISCHR(mode))
type = DT_CHR;
else if (S_ISBLK(mode))
type = DT_BLK;
else if (S_ISSOCK(mode))
type = DT_SOCK;
[readdir] convert hfsplus Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2013-05-23 02:59:39 +08:00
if (!dir_emit(ctx, strbuf, len,
hfsplus: emit proper file type from readdir hfsplus_readdir() incorrectly returned DT_REG for symbolic links and special files. Return DT_REG, DT_LNK, DT_FIFO, DT_CHR, DT_BLK, DT_SOCK, or DT_UNKNOWN according to mode field in catalog record. Programs relying on information from readdir will now work correctly with HFS+. Signed-off-by: Sergei Antonov <saproj@gmail.com> Cc: Anton Altaparmakov <aia21@cam.ac.uk> Cc: Al Viro <viro@zeniv.linux.org.uk> Cc: Christoph Hellwig <hch@infradead.org> Cc: Vyacheslav Dubeyko <slava@dubeyko.com> Cc: Hin-Tak Leung <htl10@users.sourceforge.net> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2014-06-07 05:36:24 +08:00
be32_to_cpu(entry.file.id), type))
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-17 06:20:36 +08:00
break;
} else {
hfs/hfsplus: convert printks to pr_<level> Use a more current logging style. Add #define pr_fmt(fmt) KBUILD_MODNAME ": " fmt hfsplus now uses "hfsplus: " for all messages. Coalesce formats. Prefix debugging messages too. Signed-off-by: Joe Perches <joe@perches.com> Cc: Vyacheslav Dubeyko <slava@dubeyko.com> Cc: Hin-Tak Leung <htl10@users.sourceforge.net> Cc: Christoph Hellwig <hch@infradead.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2013-05-01 06:27:55 +08:00
pr_err("bad catalog entry type\n");
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-17 06:20:36 +08:00
err = -EIO;
goto out;
}
hfsplus: spaces/indentation clean-up Fix incorrect spaces and indentation reported by checkpatch.pl. Signed-off-by: Anton Salikhmetov <alexo@tuxera.com> Signed-off-by: Christoph Hellwig <hch@tuxera.com>
2010-12-17 00:08:40 +08:00
next:
[readdir] convert hfsplus Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2013-05-23 02:59:39 +08:00
ctx->pos++;
if (ctx->pos >= inode->i_size)
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-17 06:20:36 +08:00
goto out;
err = hfs_brec_goto(&fd, 1);
if (err)
goto out;
}
[readdir] convert hfsplus Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2013-05-23 02:59:39 +08:00
rd = file->private_data;
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-17 06:20:36 +08:00
if (!rd) {
rd = kmalloc(sizeof(struct hfsplus_readdir_data), GFP_KERNEL);
if (!rd) {
err = -ENOMEM;
goto out;
}
[readdir] convert hfsplus Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2013-05-23 02:59:39 +08:00
file->private_data = rd;
rd->file = file;
hfsplus: switch to ->iterate_shared() We need to protect the list of hfsplus_readdir_data against parallel insertions (in readdir) and removals (in release). Add a spinlock for that. Note that it has nothing to do with protection of hfsplus_readdir_data->key - we have an exclusion between hfsplus_readdir() and hfsplus_delete_cat() on directory lock and between several hfsplus_readdir() for the same struct file on ->f_pos_lock. The spinlock is strictly for list changes. Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2016-05-13 08:02:09 +08:00
spin_lock(&HFSPLUS_I(inode)->open_dir_lock);
hfsplus: fix HFSPLUS_I calling convention HFSPLUS_I doesn't return a pointer to the hfsplus-specific inode information like all other FOO_I macros, but dereference the pointer in a way that made it look like a direct struct derefence. This only works as long as the HFSPLUS_I macro is used directly and prevents us from keepig a local hfsplus_inode_info pointer. Fix the calling convention and introduce a local hip variable in all functions that use it constantly. Signed-off-by: Christoph Hellwig <hch@tuxera.com>
2010-10-01 11:43:31 +08:00
list_add(&rd->list, &HFSPLUS_I(inode)->open_dir_list);
hfsplus: switch to ->iterate_shared() We need to protect the list of hfsplus_readdir_data against parallel insertions (in readdir) and removals (in release). Add a spinlock for that. Note that it has nothing to do with protection of hfsplus_readdir_data->key - we have an exclusion between hfsplus_readdir() and hfsplus_delete_cat() on directory lock and between several hfsplus_readdir() for the same struct file on ->f_pos_lock. The spinlock is strictly for list changes. Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2016-05-13 08:02:09 +08:00
spin_unlock(&HFSPLUS_I(inode)->open_dir_lock);
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-17 06:20:36 +08:00
}
hfsplus: switch to ->iterate_shared() We need to protect the list of hfsplus_readdir_data against parallel insertions (in readdir) and removals (in release). Add a spinlock for that. Note that it has nothing to do with protection of hfsplus_readdir_data->key - we have an exclusion between hfsplus_readdir() and hfsplus_delete_cat() on directory lock and between several hfsplus_readdir() for the same struct file on ->f_pos_lock. The spinlock is strictly for list changes. Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2016-05-13 08:02:09 +08:00
/*
* Can be done after the list insertion; exclusion with
* hfsplus_delete_cat() is provided by directory lock.
*/
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-17 06:20:36 +08:00
memcpy(&rd->key, fd.key, sizeof(struct hfsplus_cat_key));
out:
hfsplus: fix worst-case unicode to char conversion of file names and attributes This is a series of 3 patches which corrects issues in HFS+ concerning the use of non-english file names and attributes. Names and attributes are stored internally as UTF-16 units up to a fixed maximum size, and convert to and from user-representation by NLS. The code incorrectly assume that NLS string lengths are equal to unicode lengths, which is only true for English ascii usage. This patch (of 3): The HFS Plus Volume Format specification (TN1150) states that file names are stored internally as a maximum of 255 unicode characters, as defined by The Unicode Standard, Version 2.0 [Unicode, Inc. ISBN 0-201-48345-9]. File names are converted by the NLS system on Linux before presented to the user. 255 CJK characters converts to UTF-8 with 1 unicode character to up to 3 bytes, and to GB18030 with 1 unicode character to up to 4 bytes. Thus, trying in a UTF-8 locale to list files with names of more than 85 CJK characters results in: $ ls /mnt ls: reading directory /mnt: File name too long The receiving buffer to hfsplus_uni2asc() needs to be 255 x NLS_MAX_CHARSET_SIZE bytes, not 255 bytes as the code has always been. Similar consideration applies to attributes, which are stored internally as a maximum of 127 UTF-16BE units. See XNU source for an up-to-date reference on attributes. Strictly speaking, the maximum value of NLS_MAX_CHARSET_SIZE = 6 is not attainable in the case of conversion to UTF-8, as going beyond 3 bytes requires the use of surrogate pairs, i.e. consuming two input units. Thanks Anton Altaparmakov for reviewing an earlier version of this change. This patch fixes all callers of hfsplus_uni2asc(), and also enables the use of long non-English file names in HFS+. The getting and setting, and general usage of long non-English attributes requires further forthcoming work, in the following patches of this series. [akpm@linux-foundation.org: fix build] Signed-off-by: Hin-Tak Leung <htl10@users.sourceforge.net> Reviewed-by: Anton Altaparmakov <anton@tuxera.com> Cc: Vyacheslav Dubeyko <slava@dubeyko.com> Cc: Al Viro <viro@zeniv.linux.org.uk> Cc: Christoph Hellwig <hch@infradead.org> Cc: Sougata Santra <sougata@tuxera.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2014-06-07 05:36:21 +08:00
kfree(strbuf);
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-17 06:20:36 +08:00
hfs_find_exit(&fd);
return err;
}
static int hfsplus_dir_release(struct inode *inode, struct file *file)
{
struct hfsplus_readdir_data *rd = file->private_data;
if (rd) {
hfsplus: switch to ->iterate_shared() We need to protect the list of hfsplus_readdir_data against parallel insertions (in readdir) and removals (in release). Add a spinlock for that. Note that it has nothing to do with protection of hfsplus_readdir_data->key - we have an exclusion between hfsplus_readdir() and hfsplus_delete_cat() on directory lock and between several hfsplus_readdir() for the same struct file on ->f_pos_lock. The spinlock is strictly for list changes. Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2016-05-13 08:02:09 +08:00
spin_lock(&HFSPLUS_I(inode)->open_dir_lock);
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-17 06:20:36 +08:00
list_del(&rd->list);
hfsplus: switch to ->iterate_shared() We need to protect the list of hfsplus_readdir_data against parallel insertions (in readdir) and removals (in release). Add a spinlock for that. Note that it has nothing to do with protection of hfsplus_readdir_data->key - we have an exclusion between hfsplus_readdir() and hfsplus_delete_cat() on directory lock and between several hfsplus_readdir() for the same struct file on ->f_pos_lock. The spinlock is strictly for list changes. Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2016-05-13 08:02:09 +08:00
spin_unlock(&HFSPLUS_I(inode)->open_dir_lock);
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-17 06:20:36 +08:00
kfree(rd);
}
return 0;
}
static int hfsplus_link(struct dentry *src_dentry, struct inode *dst_dir,
struct dentry *dst_dentry)
{
hfsplus: fix HFSPLUS_SB calling convention HFSPLUS_SB doesn't return a pointer to the hfsplus-specific superblock information like all other FOO_SB macros, but dereference the pointer in a way that made it look like a direct struct derefence. This only works as long as the HFSPLUS_SB macro is used directly and prevents us from keepig a local hfsplus_sb_info pointer. Fix the calling convention and introduce a local sbi variable in all functions that use it constantly. Signed-off-by: Christoph Hellwig <hch@tuxera.com>
2010-10-01 11:42:59 +08:00
struct hfsplus_sb_info *sbi = HFSPLUS_SB(dst_dir->i_sb);
VFS: normal filesystems (and lustre): d_inode() annotations that's the bulk of filesystem drivers dealing with inodes of their own Signed-off-by: David Howells <dhowells@redhat.com> Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2015-03-18 06:25:59 +08:00
struct inode *inode = d_inode(src_dentry);
struct inode *src_dir = d_inode(src_dentry->d_parent);
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-17 06:20:36 +08:00
struct qstr str;
char name[32];
u32 cnid, id;
int res;
if (HFSPLUS_IS_RSRC(inode))
return -EPERM;
hfsplus: fix link corruption HFS implements hardlink by using indirect catalog entries that refer to a hidden directly. The link target is cached in the dev field in the HFS+ specific inode, which is also used for the device number for device files, and inside for passing the nlink value of the indirect node from hfsplus_cat_write_inode to a helper function. Now if we happen to write out the indirect node while hfsplus_link is creating the catalog entry we'll get a link pointing to the linkid of the current nlink value. This can easily be reproduced by a large enough loop of local git-clone operations. Stop abusing the dev field in the HFS+ inode for short term storage by refactoring the way the permission structure in the catalog entry is set up, and rename the dev field to linkid to avoid any confusion. While we're at it also prevent creating hard links to special files, as the HFS+ dev and linkid share the same space in the on-disk structure. Signed-off-by: Christoph Hellwig <hch@tuxera.com>
2010-10-14 21:54:28 +08:00
if (!S_ISREG(inode->i_mode))
return -EPERM;
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-17 06:20:36 +08:00
hfsplus: add per-superblock lock for volume header updates Lock updates to the mutal fields in the volume header, and document the locing in the hfsplus_sb_info structure. Signed-off-by: Christoph Hellwig <hch@tuxera.com>
2010-10-01 11:45:08 +08:00
mutex_lock(&sbi->vh_mutex);
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-17 06:20:36 +08:00
if (inode->i_ino == (u32)(unsigned long)src_dentry->d_fsdata) {
for (;;) {
get_random_bytes(&id, sizeof(cnid));
id &= 0x3fffffff;
str.name = name;
str.len = sprintf(name, "iNode%d", id);
res = hfsplus_rename_cat(inode->i_ino,
src_dir, &src_dentry->d_name,
hfsplus: fix HFSPLUS_SB calling convention HFSPLUS_SB doesn't return a pointer to the hfsplus-specific superblock information like all other FOO_SB macros, but dereference the pointer in a way that made it look like a direct struct derefence. This only works as long as the HFSPLUS_SB macro is used directly and prevents us from keepig a local hfsplus_sb_info pointer. Fix the calling convention and introduce a local sbi variable in all functions that use it constantly. Signed-off-by: Christoph Hellwig <hch@tuxera.com>
2010-10-01 11:42:59 +08:00
sbi->hidden_dir, &str);
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-17 06:20:36 +08:00
if (!res)
break;
if (res != -EEXIST)
hfsplus: add per-superblock lock for volume header updates Lock updates to the mutal fields in the volume header, and document the locing in the hfsplus_sb_info structure. Signed-off-by: Christoph Hellwig <hch@tuxera.com>
2010-10-01 11:45:08 +08:00
goto out;
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-17 06:20:36 +08:00
}
hfsplus: fix link corruption HFS implements hardlink by using indirect catalog entries that refer to a hidden directly. The link target is cached in the dev field in the HFS+ specific inode, which is also used for the device number for device files, and inside for passing the nlink value of the indirect node from hfsplus_cat_write_inode to a helper function. Now if we happen to write out the indirect node while hfsplus_link is creating the catalog entry we'll get a link pointing to the linkid of the current nlink value. This can easily be reproduced by a large enough loop of local git-clone operations. Stop abusing the dev field in the HFS+ inode for short term storage by refactoring the way the permission structure in the catalog entry is set up, and rename the dev field to linkid to avoid any confusion. While we're at it also prevent creating hard links to special files, as the HFS+ dev and linkid share the same space in the on-disk structure. Signed-off-by: Christoph Hellwig <hch@tuxera.com>
2010-10-14 21:54:28 +08:00
HFSPLUS_I(inode)->linkid = id;
hfsplus: fix HFSPLUS_SB calling convention HFSPLUS_SB doesn't return a pointer to the hfsplus-specific superblock information like all other FOO_SB macros, but dereference the pointer in a way that made it look like a direct struct derefence. This only works as long as the HFSPLUS_SB macro is used directly and prevents us from keepig a local hfsplus_sb_info pointer. Fix the calling convention and introduce a local sbi variable in all functions that use it constantly. Signed-off-by: Christoph Hellwig <hch@tuxera.com>
2010-10-01 11:42:59 +08:00
cnid = sbi->next_cnid++;
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-17 06:20:36 +08:00
src_dentry->d_fsdata = (void *)(unsigned long)cnid;
hfsplus: over 80 character lines clean-up Match coding style line length limitation where checkpatch.pl reported over-80-character-line warnings. Signed-off-by: Anton Salikhmetov <alexo@tuxera.com> Signed-off-by: Christoph Hellwig <hch@tuxera.com>
2010-12-17 00:08:38 +08:00
res = hfsplus_create_cat(cnid, src_dir,
&src_dentry->d_name, inode);
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-17 06:20:36 +08:00
if (res)
/* panic? */
hfsplus: add per-superblock lock for volume header updates Lock updates to the mutal fields in the volume header, and document the locing in the hfsplus_sb_info structure. Signed-off-by: Christoph Hellwig <hch@tuxera.com>
2010-10-01 11:45:08 +08:00
goto out;
hfsplus: fix HFSPLUS_SB calling convention HFSPLUS_SB doesn't return a pointer to the hfsplus-specific superblock information like all other FOO_SB macros, but dereference the pointer in a way that made it look like a direct struct derefence. This only works as long as the HFSPLUS_SB macro is used directly and prevents us from keepig a local hfsplus_sb_info pointer. Fix the calling convention and introduce a local sbi variable in all functions that use it constantly. Signed-off-by: Christoph Hellwig <hch@tuxera.com>
2010-10-01 11:42:59 +08:00
sbi->file_count++;
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-17 06:20:36 +08:00
}
hfsplus: fix HFSPLUS_SB calling convention HFSPLUS_SB doesn't return a pointer to the hfsplus-specific superblock information like all other FOO_SB macros, but dereference the pointer in a way that made it look like a direct struct derefence. This only works as long as the HFSPLUS_SB macro is used directly and prevents us from keepig a local hfsplus_sb_info pointer. Fix the calling convention and introduce a local sbi variable in all functions that use it constantly. Signed-off-by: Christoph Hellwig <hch@tuxera.com>
2010-10-01 11:42:59 +08:00
cnid = sbi->next_cnid++;
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-17 06:20:36 +08:00
res = hfsplus_create_cat(cnid, dst_dir, &dst_dentry->d_name, inode);
if (res)
hfsplus: add per-superblock lock for volume header updates Lock updates to the mutal fields in the volume header, and document the locing in the hfsplus_sb_info structure. Signed-off-by: Christoph Hellwig <hch@tuxera.com>
2010-10-01 11:45:08 +08:00
goto out;
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-17 06:20:36 +08:00
[PATCH] r/o bind mount prepwork: inc_nlink() helper This is mostly included for parity with dec_nlink(), where we will have some more hooks. This one should stay pretty darn straightforward for now. Signed-off-by: Dave Hansen <haveblue@us.ibm.com> Acked-by: Christoph Hellwig <hch@lst.de> Cc: Al Viro <viro@zeniv.linux.org.uk> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-10-01 14:29:04 +08:00
inc_nlink(inode);
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-17 06:20:36 +08:00
hfsplus_instantiate(dst_dentry, inode, cnid);
new helper: ihold() Clones an existing reference to inode; caller must already hold one. Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2010-10-23 23:11:40 +08:00
ihold(inode);
fs: Replace CURRENT_TIME_SEC with current_time() for inode timestamps CURRENT_TIME_SEC is not y2038 safe. current_time() will be transitioned to use 64 bit time along with vfs in a separate patch. There is no plan to transistion CURRENT_TIME_SEC to use y2038 safe time interfaces. current_time() will also be extended to use superblock range checking parameters when range checking is introduced. This works because alloc_super() fills in the the s_time_gran in super block to NSEC_PER_SEC. Signed-off-by: Deepa Dinamani <deepa.kernel@gmail.com> Acked-by: Jan Kara <jack@suse.cz> Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2016-09-14 22:48:05 +08:00
inode->i_ctime = current_time(inode);
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-17 06:20:36 +08:00
mark_inode_dirty(inode);
hfsplus: fix HFSPLUS_SB calling convention HFSPLUS_SB doesn't return a pointer to the hfsplus-specific superblock information like all other FOO_SB macros, but dereference the pointer in a way that made it look like a direct struct derefence. This only works as long as the HFSPLUS_SB macro is used directly and prevents us from keepig a local hfsplus_sb_info pointer. Fix the calling convention and introduce a local sbi variable in all functions that use it constantly. Signed-off-by: Christoph Hellwig <hch@tuxera.com>
2010-10-01 11:42:59 +08:00
sbi->file_count++;
hfsplus: get rid of write_super This patch makes hfsplus stop using the VFS '->write_super()' method along with the 's_dirt' superblock flag, because they are on their way out. The whole "superblock write-out" VFS infrastructure is served by the 'sync_supers()' kernel thread, which wakes up every 5 (by default) seconds and writes out all dirty superblocks using the '->write_super()' call-back. But the problem with this thread is that it wastes power by waking up the system every 5 seconds, even if there are no diry superblocks, or there are no client file-systems which would need this (e.g., btrfs does not use '->write_super()'). So we want to kill it completely and thus, we need to make file-systems to stop using the '->write_super()' VFS service, and then remove it together with the kernel thread. Tested using fsstress from the LTP project. Signed-off-by: Artem Bityutskiy <artem.bityutskiy@linux.intel.com> Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2012-07-12 22:26:31 +08:00
hfsplus_mark_mdb_dirty(dst_dir->i_sb);
hfsplus: add per-superblock lock for volume header updates Lock updates to the mutal fields in the volume header, and document the locing in the hfsplus_sb_info structure. Signed-off-by: Christoph Hellwig <hch@tuxera.com>
2010-10-01 11:45:08 +08:00
out:
mutex_unlock(&sbi->vh_mutex);
return res;
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-17 06:20:36 +08:00
}
static int hfsplus_unlink(struct inode *dir, struct dentry *dentry)
{
hfsplus: fix HFSPLUS_SB calling convention HFSPLUS_SB doesn't return a pointer to the hfsplus-specific superblock information like all other FOO_SB macros, but dereference the pointer in a way that made it look like a direct struct derefence. This only works as long as the HFSPLUS_SB macro is used directly and prevents us from keepig a local hfsplus_sb_info pointer. Fix the calling convention and introduce a local sbi variable in all functions that use it constantly. Signed-off-by: Christoph Hellwig <hch@tuxera.com>
2010-10-01 11:42:59 +08:00
struct hfsplus_sb_info *sbi = HFSPLUS_SB(dir->i_sb);
VFS: normal filesystems (and lustre): d_inode() annotations that's the bulk of filesystem drivers dealing with inodes of their own Signed-off-by: David Howells <dhowells@redhat.com> Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2015-03-18 06:25:59 +08:00
struct inode *inode = d_inode(dentry);
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-17 06:20:36 +08:00
struct qstr str;
char name[32];
u32 cnid;
int res;
if (HFSPLUS_IS_RSRC(inode))
return -EPERM;
hfsplus: add per-superblock lock for volume header updates Lock updates to the mutal fields in the volume header, and document the locing in the hfsplus_sb_info structure. Signed-off-by: Christoph Hellwig <hch@tuxera.com>
2010-10-01 11:45:08 +08:00
mutex_lock(&sbi->vh_mutex);
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-17 06:20:36 +08:00
cnid = (u32)(unsigned long)dentry->d_fsdata;
if (inode->i_ino == cnid &&
hfsplus: fix HFSPLUS_I calling convention HFSPLUS_I doesn't return a pointer to the hfsplus-specific inode information like all other FOO_I macros, but dereference the pointer in a way that made it look like a direct struct derefence. This only works as long as the HFSPLUS_I macro is used directly and prevents us from keepig a local hfsplus_inode_info pointer. Fix the calling convention and introduce a local hip variable in all functions that use it constantly. Signed-off-by: Christoph Hellwig <hch@tuxera.com>
2010-10-01 11:43:31 +08:00
atomic_read(&HFSPLUS_I(inode)->opencnt)) {
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-17 06:20:36 +08:00
str.name = name;
str.len = sprintf(name, "temp%lu", inode->i_ino);
res = hfsplus_rename_cat(inode->i_ino,
dir, &dentry->d_name,
hfsplus: fix HFSPLUS_SB calling convention HFSPLUS_SB doesn't return a pointer to the hfsplus-specific superblock information like all other FOO_SB macros, but dereference the pointer in a way that made it look like a direct struct derefence. This only works as long as the HFSPLUS_SB macro is used directly and prevents us from keepig a local hfsplus_sb_info pointer. Fix the calling convention and introduce a local sbi variable in all functions that use it constantly. Signed-off-by: Christoph Hellwig <hch@tuxera.com>
2010-10-01 11:42:59 +08:00
sbi->hidden_dir, &str);
hfsplus: free space correcly for files unlinked while open hfsplus_delete_inode only truncates away all block allocations if i_nlink is zero. Make sure we properly drop the unlink count even when doing the rename hack for open but unlinked files. Signed-off-by: Christoph Hellwig <hch@tuxera.com>
2010-10-27 19:45:50 +08:00
if (!res) {
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-17 06:20:36 +08:00
inode->i_flags |= S_DEAD;
hfsplus: free space correcly for files unlinked while open hfsplus_delete_inode only truncates away all block allocations if i_nlink is zero. Make sure we properly drop the unlink count even when doing the rename hack for open but unlinked files. Signed-off-by: Christoph Hellwig <hch@tuxera.com>
2010-10-27 19:45:50 +08:00
drop_nlink(inode);
}
hfsplus: add per-superblock lock for volume header updates Lock updates to the mutal fields in the volume header, and document the locing in the hfsplus_sb_info structure. Signed-off-by: Christoph Hellwig <hch@tuxera.com>
2010-10-01 11:45:08 +08:00
goto out;
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-17 06:20:36 +08:00
}
res = hfsplus_delete_cat(cnid, dir, &dentry->d_name);
if (res)
hfsplus: add per-superblock lock for volume header updates Lock updates to the mutal fields in the volume header, and document the locing in the hfsplus_sb_info structure. Signed-off-by: Christoph Hellwig <hch@tuxera.com>
2010-10-01 11:45:08 +08:00
goto out;
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-17 06:20:36 +08:00
[PATCH] hfs: set correct create date for links HFS+ also requires the correct creation date so recent version of OS X recognize it as link. Improve link handling: - if something is wrong with the link, ignore the link attribute and treat it as regular file (this also fixes a missing unlock during lookup). - check for incorrect link counts during unlink. Signed-off-by: Roman Zippel <zippel@linux-m68k.org> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-01-19 09:43:10 +08:00
if (inode->i_nlink > 0)
[PATCH] r/o bind mounts: unlink: monitor i_nlink When a filesystem decrements i_nlink to zero, it means that a write must be performed in order to drop the inode from the filesystem. We're shortly going to have keep filesystems from being remounted r/o between the time that this i_nlink decrement and that write occurs. So, add a little helper function to do the decrements. We'll tie into it in a bit to note when i_nlink hits zero. Signed-off-by: Dave Hansen <haveblue@us.ibm.com> Acked-by: Christoph Hellwig <hch@lst.de> Cc: Al Viro <viro@zeniv.linux.org.uk> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-10-01 14:29:03 +08:00
drop_nlink(inode);
HFS+: fix unlink of links Some time ago while attempting to handle invalid link counts, I botched the unlink of links itself, so this patch fixes this now correctly, so that only the link count of nodes that don't point to links is ignored. Thanks to Vlado Plaga <rechner@vlado-do.de> to notify me of this problem. Signed-off-by: Roman Zippel <zippel@linux-m68k.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2008-04-09 23:44:07 +08:00
if (inode->i_ino == cnid)
clear_nlink(inode);
if (!inode->i_nlink) {
if (inode->i_ino != cnid) {
hfsplus: fix HFSPLUS_SB calling convention HFSPLUS_SB doesn't return a pointer to the hfsplus-specific superblock information like all other FOO_SB macros, but dereference the pointer in a way that made it look like a direct struct derefence. This only works as long as the HFSPLUS_SB macro is used directly and prevents us from keepig a local hfsplus_sb_info pointer. Fix the calling convention and introduce a local sbi variable in all functions that use it constantly. Signed-off-by: Christoph Hellwig <hch@tuxera.com>
2010-10-01 11:42:59 +08:00
sbi->file_count--;
hfsplus: fix HFSPLUS_I calling convention HFSPLUS_I doesn't return a pointer to the hfsplus-specific inode information like all other FOO_I macros, but dereference the pointer in a way that made it look like a direct struct derefence. This only works as long as the HFSPLUS_I macro is used directly and prevents us from keepig a local hfsplus_inode_info pointer. Fix the calling convention and introduce a local hip variable in all functions that use it constantly. Signed-off-by: Christoph Hellwig <hch@tuxera.com>
2010-10-01 11:43:31 +08:00
if (!atomic_read(&HFSPLUS_I(inode)->opencnt)) {
HFS+: fix unlink of links Some time ago while attempting to handle invalid link counts, I botched the unlink of links itself, so this patch fixes this now correctly, so that only the link count of nodes that don't point to links is ignored. Thanks to Vlado Plaga <rechner@vlado-do.de> to notify me of this problem. Signed-off-by: Roman Zippel <zippel@linux-m68k.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2008-04-09 23:44:07 +08:00
res = hfsplus_delete_cat(inode->i_ino,
hfsplus: fix HFSPLUS_SB calling convention HFSPLUS_SB doesn't return a pointer to the hfsplus-specific superblock information like all other FOO_SB macros, but dereference the pointer in a way that made it look like a direct struct derefence. This only works as long as the HFSPLUS_SB macro is used directly and prevents us from keepig a local hfsplus_sb_info pointer. Fix the calling convention and introduce a local sbi variable in all functions that use it constantly. Signed-off-by: Christoph Hellwig <hch@tuxera.com>
2010-10-01 11:42:59 +08:00
sbi->hidden_dir,
HFS+: fix unlink of links Some time ago while attempting to handle invalid link counts, I botched the unlink of links itself, so this patch fixes this now correctly, so that only the link count of nodes that don't point to links is ignored. Thanks to Vlado Plaga <rechner@vlado-do.de> to notify me of this problem. Signed-off-by: Roman Zippel <zippel@linux-m68k.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2008-04-09 23:44:07 +08:00
NULL);
if (!res)
hfsplus_delete_inode(inode);
} else
inode->i_flags |= S_DEAD;
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-17 06:20:36 +08:00
} else
HFS+: fix unlink of links Some time ago while attempting to handle invalid link counts, I botched the unlink of links itself, so this patch fixes this now correctly, so that only the link count of nodes that don't point to links is ignored. Thanks to Vlado Plaga <rechner@vlado-do.de> to notify me of this problem. Signed-off-by: Roman Zippel <zippel@linux-m68k.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2008-04-09 23:44:07 +08:00
hfsplus_delete_inode(inode);
[PATCH] hfs: set correct create date for links HFS+ also requires the correct creation date so recent version of OS X recognize it as link. Improve link handling: - if something is wrong with the link, ignore the link attribute and treat it as regular file (this also fixes a missing unlock during lookup). - check for incorrect link counts during unlink. Signed-off-by: Roman Zippel <zippel@linux-m68k.org> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-01-19 09:43:10 +08:00
} else
hfsplus: fix HFSPLUS_SB calling convention HFSPLUS_SB doesn't return a pointer to the hfsplus-specific superblock information like all other FOO_SB macros, but dereference the pointer in a way that made it look like a direct struct derefence. This only works as long as the HFSPLUS_SB macro is used directly and prevents us from keepig a local hfsplus_sb_info pointer. Fix the calling convention and introduce a local sbi variable in all functions that use it constantly. Signed-off-by: Christoph Hellwig <hch@tuxera.com>
2010-10-01 11:42:59 +08:00
sbi->file_count--;
fs: Replace CURRENT_TIME_SEC with current_time() for inode timestamps CURRENT_TIME_SEC is not y2038 safe. current_time() will be transitioned to use 64 bit time along with vfs in a separate patch. There is no plan to transistion CURRENT_TIME_SEC to use y2038 safe time interfaces. current_time() will also be extended to use superblock range checking parameters when range checking is introduced. This works because alloc_super() fills in the the s_time_gran in super block to NSEC_PER_SEC. Signed-off-by: Deepa Dinamani <deepa.kernel@gmail.com> Acked-by: Jan Kara <jack@suse.cz> Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2016-09-14 22:48:05 +08:00
inode->i_ctime = current_time(inode);
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-17 06:20:36 +08:00
mark_inode_dirty(inode);
hfsplus: add per-superblock lock for volume header updates Lock updates to the mutal fields in the volume header, and document the locing in the hfsplus_sb_info structure. Signed-off-by: Christoph Hellwig <hch@tuxera.com>
2010-10-01 11:45:08 +08:00
out:
mutex_unlock(&sbi->vh_mutex);
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-17 06:20:36 +08:00
return res;
}
static int hfsplus_rmdir(struct inode *dir, struct dentry *dentry)
{
hfsplus: add per-superblock lock for volume header updates Lock updates to the mutal fields in the volume header, and document the locing in the hfsplus_sb_info structure. Signed-off-by: Christoph Hellwig <hch@tuxera.com>
2010-10-01 11:45:08 +08:00
struct hfsplus_sb_info *sbi = HFSPLUS_SB(dir->i_sb);
VFS: normal filesystems (and lustre): d_inode() annotations that's the bulk of filesystem drivers dealing with inodes of their own Signed-off-by: David Howells <dhowells@redhat.com> Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2015-03-18 06:25:59 +08:00
struct inode *inode = d_inode(dentry);
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-17 06:20:36 +08:00
int res;
if (inode->i_size != 2)
return -ENOTEMPTY;
hfsplus: add per-superblock lock for volume header updates Lock updates to the mutal fields in the volume header, and document the locing in the hfsplus_sb_info structure. Signed-off-by: Christoph Hellwig <hch@tuxera.com>
2010-10-01 11:45:08 +08:00
mutex_lock(&sbi->vh_mutex);
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-17 06:20:36 +08:00
res = hfsplus_delete_cat(inode->i_ino, dir, &dentry->d_name);
if (res)
hfsplus: add per-superblock lock for volume header updates Lock updates to the mutal fields in the volume header, and document the locing in the hfsplus_sb_info structure. Signed-off-by: Christoph Hellwig <hch@tuxera.com>
2010-10-01 11:45:08 +08:00
goto out;
[PATCH] r/o bind mounts: monitor zeroing of i_nlink Some filesystems, instead of simply decrementing i_nlink, simply zero it during an unlink operation. We need to catch these in addition to the decrement operations. Signed-off-by: Dave Hansen <haveblue@us.ibm.com> Acked-by: Christoph Hellwig <hch@lst.de> Cc: Al Viro <viro@zeniv.linux.org.uk> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-10-01 14:29:06 +08:00
clear_nlink(inode);
fs: Replace CURRENT_TIME_SEC with current_time() for inode timestamps CURRENT_TIME_SEC is not y2038 safe. current_time() will be transitioned to use 64 bit time along with vfs in a separate patch. There is no plan to transistion CURRENT_TIME_SEC to use y2038 safe time interfaces. current_time() will also be extended to use superblock range checking parameters when range checking is introduced. This works because alloc_super() fills in the the s_time_gran in super block to NSEC_PER_SEC. Signed-off-by: Deepa Dinamani <deepa.kernel@gmail.com> Acked-by: Jan Kara <jack@suse.cz> Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2016-09-14 22:48:05 +08:00
inode->i_ctime = current_time(inode);
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-17 06:20:36 +08:00
hfsplus_delete_inode(inode);
mark_inode_dirty(inode);
hfsplus: add per-superblock lock for volume header updates Lock updates to the mutal fields in the volume header, and document the locing in the hfsplus_sb_info structure. Signed-off-by: Christoph Hellwig <hch@tuxera.com>
2010-10-01 11:45:08 +08:00
out:
mutex_unlock(&sbi->vh_mutex);
return res;
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-17 06:20:36 +08:00
}
static int hfsplus_symlink(struct inode *dir, struct dentry *dentry,
const char *symname)
{
hfsplus: add per-superblock lock for volume header updates Lock updates to the mutal fields in the volume header, and document the locing in the hfsplus_sb_info structure. Signed-off-by: Christoph Hellwig <hch@tuxera.com>
2010-10-01 11:45:08 +08:00
struct hfsplus_sb_info *sbi = HFSPLUS_SB(dir->i_sb);
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-17 06:20:36 +08:00
struct inode *inode;
hfsplus: incorrect return value In case of memory allocation error, the return should be -ENOMEM, instead of -ENOSPC. Signed-off-by: Chengyu Song <csong84@gatech.edu> Reviewed-by: Sergei Antonov <saproj@gmail.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2015-04-17 03:47:12 +08:00
int res = -ENOMEM;
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-17 06:20:36 +08:00
hfsplus: add per-superblock lock for volume header updates Lock updates to the mutal fields in the volume header, and document the locing in the hfsplus_sb_info structure. Signed-off-by: Christoph Hellwig <hch@tuxera.com>
2010-10-01 11:45:08 +08:00
mutex_lock(&sbi->vh_mutex);
hfsplus: honor setgid flag on directories When creating a file inside a directory that has the setgid flag set, give the new file the group ID of the parent, and also the setgid flag if it is a directory itself. Link: http://lkml.kernel.org/r/20171204192705.GA6101@debian.home Signed-off-by: Ernesto A. Fernandez <ernesto.mnd.fernandez@gmail.com> Reviewed-by: Vyacheslav Dubeyko <slava@dubeyko.com> Cc: Al Viro <viro@zeniv.linux.org.uk> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2018-02-07 07:49:02 +08:00
inode = hfsplus_new_inode(dir->i_sb, dir, S_IFLNK | S_IRWXUGO);
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-17 06:20:36 +08:00
if (!inode)
hfsplus: add per-superblock lock for volume header updates Lock updates to the mutal fields in the volume header, and document the locing in the hfsplus_sb_info structure. Signed-off-by: Christoph Hellwig <hch@tuxera.com>
2010-10-01 11:45:08 +08:00
goto out;
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-17 06:20:36 +08:00
res = page_symlink(inode, symname, strlen(symname) + 1);
hfsplus: fix error handling in hfsplus_symlink We need to free the inode again on a hfsplus_create_cat failure. Signed-off-by: Christoph Hellwig <hch@tuxera.com>
2010-10-01 11:43:54 +08:00
if (res)
goto out_err;
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-17 06:20:36 +08:00
res = hfsplus_create_cat(inode->i_ino, dir, &dentry->d_name, inode);
hfsplus: fix error handling in hfsplus_symlink We need to free the inode again on a hfsplus_create_cat failure. Signed-off-by: Christoph Hellwig <hch@tuxera.com>
2010-10-01 11:43:54 +08:00
if (res)
goto out_err;
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-17 06:20:36 +08:00
hfsplus: drop ACL support The HFS+ Access Control Lists have not worked at all for the past five years, and nobody seems to have noticed. Besides, POSIX draft ACLs are not compatible with MacOS. Drop the feature entirely. Link: http://lkml.kernel.org/r/20180714190608.wtnmmtjqeyladkut@eaf Signed-off-by: Ernesto A. Fernández <ernesto.mnd.fernandez@gmail.com> Acked-by: Christoph Hellwig <hch@lst.de> Cc: Viacheslav Dubeyko <slava@dubeyko.com> Cc: Jan Kara <jack@suse.cz> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2018-08-22 12:59:23 +08:00
res = hfsplus_init_security(inode, dir, &dentry->d_name);
hfsplus: add support of manipulation by attributes file Add support of manipulation by attributes file. Signed-off-by: Vyacheslav Dubeyko <slava@dubeyko.com> Reported-by: Hin-Tak Leung <htl10@users.sourceforge.net> Cc: Al Viro <viro@zeniv.linux.org.uk> Cc: Christoph Hellwig <hch@lst.de> Cc: Jan Kara <jack@suse.cz> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2013-02-28 09:03:04 +08:00
if (res == -EOPNOTSUPP)
res = 0; /* Operation is not supported. */
else if (res) {
/* Try to delete anyway without error analysis. */
hfsplus_delete_cat(inode->i_ino, dir, &dentry->d_name);
goto out_err;
}
hfsplus: fix error handling in hfsplus_symlink We need to free the inode again on a hfsplus_create_cat failure. Signed-off-by: Christoph Hellwig <hch@tuxera.com>
2010-10-01 11:43:54 +08:00
hfsplus_instantiate(dentry, inode, inode->i_ino);
mark_inode_dirty(inode);
hfsplus: add per-superblock lock for volume header updates Lock updates to the mutal fields in the volume header, and document the locing in the hfsplus_sb_info structure. Signed-off-by: Christoph Hellwig <hch@tuxera.com>
2010-10-01 11:45:08 +08:00
goto out;
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-17 06:20:36 +08:00
hfsplus: fix error handling in hfsplus_symlink We need to free the inode again on a hfsplus_create_cat failure. Signed-off-by: Christoph Hellwig <hch@tuxera.com>
2010-10-01 11:43:54 +08:00
out_err:
filesystems: add missing nlink wrappers Replace direct i_nlink updates with the respective updater function (inc_nlink, drop_nlink, clear_nlink, inode_dec_link_count). Signed-off-by: Miklos Szeredi <mszeredi@suse.cz>
2011-10-28 20:13:28 +08:00
clear_nlink(inode);
hfsplus: fix error handling in hfsplus_symlink We need to free the inode again on a hfsplus_create_cat failure. Signed-off-by: Christoph Hellwig <hch@tuxera.com>
2010-10-01 11:43:54 +08:00
hfsplus_delete_inode(inode);
iput(inode);
hfsplus: add per-superblock lock for volume header updates Lock updates to the mutal fields in the volume header, and document the locing in the hfsplus_sb_info structure. Signed-off-by: Christoph Hellwig <hch@tuxera.com>
2010-10-01 11:45:08 +08:00
out:
mutex_unlock(&sbi->vh_mutex);
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-17 06:20:36 +08:00
return res;
}
static int hfsplus_mknod(struct inode *dir, struct dentry *dentry,
switch ->mknod() to umode_t Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2011-07-26 13:52:52 +08:00
umode_t mode, dev_t rdev)
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-17 06:20:36 +08:00
{
hfsplus: add per-superblock lock for volume header updates Lock updates to the mutal fields in the volume header, and document the locing in the hfsplus_sb_info structure. Signed-off-by: Christoph Hellwig <hch@tuxera.com>
2010-10-01 11:45:08 +08:00
struct hfsplus_sb_info *sbi = HFSPLUS_SB(dir->i_sb);
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-17 06:20:36 +08:00
struct inode *inode;
hfsplus: incorrect return value In case of memory allocation error, the return should be -ENOMEM, instead of -ENOSPC. Signed-off-by: Chengyu Song <csong84@gatech.edu> Reviewed-by: Sergei Antonov <saproj@gmail.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2015-04-17 03:47:12 +08:00
int res = -ENOMEM;
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-17 06:20:36 +08:00
hfsplus: add per-superblock lock for volume header updates Lock updates to the mutal fields in the volume header, and document the locing in the hfsplus_sb_info structure. Signed-off-by: Christoph Hellwig <hch@tuxera.com>
2010-10-01 11:45:08 +08:00
mutex_lock(&sbi->vh_mutex);
hfsplus: honor setgid flag on directories When creating a file inside a directory that has the setgid flag set, give the new file the group ID of the parent, and also the setgid flag if it is a directory itself. Link: http://lkml.kernel.org/r/20171204192705.GA6101@debian.home Signed-off-by: Ernesto A. Fernandez <ernesto.mnd.fernandez@gmail.com> Reviewed-by: Vyacheslav Dubeyko <slava@dubeyko.com> Cc: Al Viro <viro@zeniv.linux.org.uk> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2018-02-07 07:49:02 +08:00
inode = hfsplus_new_inode(dir->i_sb, dir, mode);
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-17 06:20:36 +08:00
if (!inode)
hfsplus: add per-superblock lock for volume header updates Lock updates to the mutal fields in the volume header, and document the locing in the hfsplus_sb_info structure. Signed-off-by: Christoph Hellwig <hch@tuxera.com>
2010-10-01 11:45:08 +08:00
goto out;
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-17 06:20:36 +08:00
hfsplus: create correct initial catalog entries for device files Make sure the initial insertation of the catalog entry already contains the device number by calling init_special_inode early and setting writing out the dev field of the on-disk permission structure. The latter is facilitated by sharing the almost identical hfsplus_set_perms helpers between initial catalog entry creating and ->write_inode. Unless we crashed just after mknod this bug was harmless as the inode is marked dirty at the end of hfsplus_mknod, and hfsplus_write_inode will update the catalog entry to contain the correct value. Signed-off-by: Christoph Hellwig <hch@tuxera.com>
2010-10-14 21:54:39 +08:00
if (S_ISBLK(mode) || S_ISCHR(mode) || S_ISFIFO(mode) || S_ISSOCK(mode))
init_special_inode(inode, mode, rdev);
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-17 06:20:36 +08:00
res = hfsplus_create_cat(inode->i_ino, dir, &dentry->d_name, inode);
hfsplus: add support of manipulation by attributes file Add support of manipulation by attributes file. Signed-off-by: Vyacheslav Dubeyko <slava@dubeyko.com> Reported-by: Hin-Tak Leung <htl10@users.sourceforge.net> Cc: Al Viro <viro@zeniv.linux.org.uk> Cc: Christoph Hellwig <hch@lst.de> Cc: Jan Kara <jack@suse.cz> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2013-02-28 09:03:04 +08:00
if (res)
goto failed_mknod;
hfsplus: drop ACL support The HFS+ Access Control Lists have not worked at all for the past five years, and nobody seems to have noticed. Besides, POSIX draft ACLs are not compatible with MacOS. Drop the feature entirely. Link: http://lkml.kernel.org/r/20180714190608.wtnmmtjqeyladkut@eaf Signed-off-by: Ernesto A. Fernández <ernesto.mnd.fernandez@gmail.com> Acked-by: Christoph Hellwig <hch@lst.de> Cc: Viacheslav Dubeyko <slava@dubeyko.com> Cc: Jan Kara <jack@suse.cz> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2018-08-22 12:59:23 +08:00
res = hfsplus_init_security(inode, dir, &dentry->d_name);
hfsplus: add support of manipulation by attributes file Add support of manipulation by attributes file. Signed-off-by: Vyacheslav Dubeyko <slava@dubeyko.com> Reported-by: Hin-Tak Leung <htl10@users.sourceforge.net> Cc: Al Viro <viro@zeniv.linux.org.uk> Cc: Christoph Hellwig <hch@lst.de> Cc: Jan Kara <jack@suse.cz> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2013-02-28 09:03:04 +08:00
if (res == -EOPNOTSUPP)
res = 0; /* Operation is not supported. */
else if (res) {
/* Try to delete anyway without error analysis. */
hfsplus_delete_cat(inode->i_ino, dir, &dentry->d_name);
goto failed_mknod;
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-17 06:20:36 +08:00
}
hfsplus: merge mknod/mkdir/creat Make hfsplus_mkdir and hfsplus_create call hfsplus_mknod instead of duplicating the code. Signed-off-by: Christoph Hellwig <hch@tuxera.com>
2010-10-01 11:43:50 +08:00
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-17 06:20:36 +08:00
hfsplus_instantiate(dentry, inode, inode->i_ino);
mark_inode_dirty(inode);
hfsplus: add support of manipulation by attributes file Add support of manipulation by attributes file. Signed-off-by: Vyacheslav Dubeyko <slava@dubeyko.com> Reported-by: Hin-Tak Leung <htl10@users.sourceforge.net> Cc: Al Viro <viro@zeniv.linux.org.uk> Cc: Christoph Hellwig <hch@lst.de> Cc: Jan Kara <jack@suse.cz> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2013-02-28 09:03:04 +08:00
goto out;
failed_mknod:
clear_nlink(inode);
hfsplus_delete_inode(inode);
iput(inode);
hfsplus: add per-superblock lock for volume header updates Lock updates to the mutal fields in the volume header, and document the locing in the hfsplus_sb_info structure. Signed-off-by: Christoph Hellwig <hch@tuxera.com>
2010-10-01 11:45:08 +08:00
out:
mutex_unlock(&sbi->vh_mutex);
return res;
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-17 06:20:36 +08:00
}
switch ->create() to umode_t vfs_create() ignores everything outside of 16bit subset of its mode argument; switching it to umode_t is obviously equivalent and it's the only caller of the method Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2011-07-26 13:42:34 +08:00
static int hfsplus_create(struct inode *dir, struct dentry *dentry, umode_t mode,
don't pass nameidata to ->create() boolean "does it have to be exclusive?" flag is passed instead; Local filesystem should just ignore it - the object is guaranteed not to be there yet. Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2012-06-11 06:05:36 +08:00
bool excl)
hfsplus: merge mknod/mkdir/creat Make hfsplus_mkdir and hfsplus_create call hfsplus_mknod instead of duplicating the code. Signed-off-by: Christoph Hellwig <hch@tuxera.com>
2010-10-01 11:43:50 +08:00
{
return hfsplus_mknod(dir, dentry, mode, 0);
}
switch vfs_mkdir() and ->mkdir() to umode_t vfs_mkdir() gets int, but immediately drops everything that might not fit into umode_t and that's the only caller of ->mkdir()... Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2011-07-26 13:41:39 +08:00
static int hfsplus_mkdir(struct inode *dir, struct dentry *dentry, umode_t mode)
hfsplus: merge mknod/mkdir/creat Make hfsplus_mkdir and hfsplus_create call hfsplus_mknod instead of duplicating the code. Signed-off-by: Christoph Hellwig <hch@tuxera.com>
2010-10-01 11:43:50 +08:00
{
return hfsplus_mknod(dir, dentry, mode | S_IFDIR, 0);
}
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-17 06:20:36 +08:00
static int hfsplus_rename(struct inode *old_dir, struct dentry *old_dentry,
fs: support RENAME_NOREPLACE for local filesystems This is trivial to do: - add flags argument to foo_rename() - check if flags doesn't have any other than RENAME_NOREPLACE - assign foo_rename() to .rename2 instead of .rename Filesystems converted: affs, bfs, exofs, ext2, hfs, hfsplus, jffs2, jfs, logfs, minix, msdos, nilfs2, omfs, reiserfs, sysvfs, ubifs, udf, ufs, vfat. Signed-off-by: Miklos Szeredi <mszeredi@redhat.com> Acked-by: Boaz Harrosh <ooo@electrozaur.com> Acked-by: Richard Weinberger <richard@nod.at> Acked-by: Bob Copeland <me@bobcopeland.com> Acked-by: Jan Kara <jack@suse.cz> Cc: Theodore Ts'o <tytso@mit.edu> Cc: Jaegeuk Kim <jaegeuk@kernel.org> Cc: OGAWA Hirofumi <hirofumi@mail.parknet.co.jp> Cc: Mikulas Patocka <mpatocka@redhat.com> Cc: David Woodhouse <dwmw2@infradead.org> Cc: Dave Kleikamp <shaggy@kernel.org> Cc: Ryusuke Konishi <konishi.ryusuke@lab.ntt.co.jp> Cc: Christoph Hellwig <hch@infradead.org>
2016-09-27 17:03:57 +08:00
struct inode *new_dir, struct dentry *new_dentry,
unsigned int flags)
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-17 06:20:36 +08:00
{
int res;
fs: support RENAME_NOREPLACE for local filesystems This is trivial to do: - add flags argument to foo_rename() - check if flags doesn't have any other than RENAME_NOREPLACE - assign foo_rename() to .rename2 instead of .rename Filesystems converted: affs, bfs, exofs, ext2, hfs, hfsplus, jffs2, jfs, logfs, minix, msdos, nilfs2, omfs, reiserfs, sysvfs, ubifs, udf, ufs, vfat. Signed-off-by: Miklos Szeredi <mszeredi@redhat.com> Acked-by: Boaz Harrosh <ooo@electrozaur.com> Acked-by: Richard Weinberger <richard@nod.at> Acked-by: Bob Copeland <me@bobcopeland.com> Acked-by: Jan Kara <jack@suse.cz> Cc: Theodore Ts'o <tytso@mit.edu> Cc: Jaegeuk Kim <jaegeuk@kernel.org> Cc: OGAWA Hirofumi <hirofumi@mail.parknet.co.jp> Cc: Mikulas Patocka <mpatocka@redhat.com> Cc: David Woodhouse <dwmw2@infradead.org> Cc: Dave Kleikamp <shaggy@kernel.org> Cc: Ryusuke Konishi <konishi.ryusuke@lab.ntt.co.jp> Cc: Christoph Hellwig <hch@infradead.org>
2016-09-27 17:03:57 +08:00
if (flags & ~RENAME_NOREPLACE)
return -EINVAL;
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-17 06:20:36 +08:00
/* Unlink destination if it already exists */
VFS: normal filesystems (and lustre): d_inode() annotations that's the bulk of filesystem drivers dealing with inodes of their own Signed-off-by: David Howells <dhowells@redhat.com> Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2015-03-18 06:25:59 +08:00
if (d_really_is_positive(new_dentry)) {
VFS: (Scripted) Convert S_ISLNK/DIR/REG(dentry->d_inode) to d_is_*(dentry) Convert the following where appropriate: (1) S_ISLNK(dentry->d_inode) to d_is_symlink(dentry). (2) S_ISREG(dentry->d_inode) to d_is_reg(dentry). (3) S_ISDIR(dentry->d_inode) to d_is_dir(dentry). This is actually more complicated than it appears as some calls should be converted to d_can_lookup() instead. The difference is whether the directory in question is a real dir with a ->lookup op or whether it's a fake dir with a ->d_automount op. In some circumstances, we can subsume checks for dentry->d_inode not being NULL into this, provided we the code isn't in a filesystem that expects d_inode to be NULL if the dirent really *is* negative (ie. if we're going to use d_inode() rather than d_backing_inode() to get the inode pointer). Note that the dentry type field may be set to something other than DCACHE_MISS_TYPE when d_inode is NULL in the case of unionmount, where the VFS manages the fall-through from a negative dentry to a lower layer. In such a case, the dentry type of the negative union dentry is set to the same as the type of the lower dentry. However, if you know d_inode is not NULL at the call site, then you can use the d_is_xxx() functions even in a filesystem. There is one further complication: a 0,0 chardev dentry may be labelled DCACHE_WHITEOUT_TYPE rather than DCACHE_SPECIAL_TYPE. Strictly, this was intended for special directory entry types that don't have attached inodes. The following perl+coccinelle script was used: use strict; my @callers; open($fd, 'git grep -l \'S_IS[A-Z].*->d_inode\' |') || die "Can't grep for S_ISDIR and co. callers"; @callers = <$fd>; close($fd); unless (@callers) { print "No matches\n"; exit(0); } my @cocci = ( '@@', 'expression E;', '@@', '', '- S_ISLNK(E->d_inode->i_mode)', '+ d_is_symlink(E)', '', '@@', 'expression E;', '@@', '', '- S_ISDIR(E->d_inode->i_mode)', '+ d_is_dir(E)', '', '@@', 'expression E;', '@@', '', '- S_ISREG(E->d_inode->i_mode)', '+ d_is_reg(E)' ); my $coccifile = "tmp.sp.cocci"; open($fd, ">$coccifile") || die $coccifile; print($fd "$_\n") || die $coccifile foreach (@cocci); close($fd); foreach my $file (@callers) { chomp $file; print "Processing ", $file, "\n"; system("spatch", "--sp-file", $coccifile, $file, "--in-place", "--no-show-diff") == 0 || die "spatch failed"; } [AV: overlayfs parts skipped] Signed-off-by: David Howells <dhowells@redhat.com> Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2015-01-29 20:02:35 +08:00
if (d_is_dir(new_dentry))
hfsplus: fix rename over directories When renaming over a directory we need to use hfsplus_rmdir instead of hfsplus_unlink to evict the victim. This makes sure we properly error out on non-empty directory as required by Posix (BZ #16571), and it also makes sure we do the right thing in case i_nlink will every be set correctly for directories on hfsplus. Reported-by: Vlado Plaga <rechner@vlado-do.de> Signed-off-by: Christoph Hellwig <hch@tuxera.com>
2010-10-01 15:12:08 +08:00
res = hfsplus_rmdir(new_dir, new_dentry);
hfsplus: remove unnecessary dentry_unhash on rmdir, dir rename hfsplus does not have problems with references to unlinked directories. Signed-off-by: Sage Weil <sage@newdream.net> Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2011-05-28 04:42:06 +08:00
else
hfsplus: fix rename over directories When renaming over a directory we need to use hfsplus_rmdir instead of hfsplus_unlink to evict the victim. This makes sure we properly error out on non-empty directory as required by Posix (BZ #16571), and it also makes sure we do the right thing in case i_nlink will every be set correctly for directories on hfsplus. Reported-by: Vlado Plaga <rechner@vlado-do.de> Signed-off-by: Christoph Hellwig <hch@tuxera.com>
2010-10-01 15:12:08 +08:00
res = hfsplus_unlink(new_dir, new_dentry);
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-17 06:20:36 +08:00
if (res)
return res;
}
res = hfsplus_rename_cat((u32)(unsigned long)old_dentry->d_fsdata,
old_dir, &old_dentry->d_name,
new_dir, &new_dentry->d_name);
if (!res)
new_dentry->d_fsdata = old_dentry->d_fsdata;
return res;
}
[PATCH] mark struct inode_operations const 2 Many struct inode_operations in the kernel can be "const". Marking them const moves these to the .rodata section, which avoids false sharing with potential dirty data. In addition it'll catch accidental writes at compile time to these shared resources. Signed-off-by: Arjan van de Ven <arjan@linux.intel.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-02-12 16:55:39 +08:00
const struct inode_operations hfsplus_dir_inode_operations = {
hfsplus: add support of manipulation by attributes file Add support of manipulation by attributes file. Signed-off-by: Vyacheslav Dubeyko <slava@dubeyko.com> Reported-by: Hin-Tak Leung <htl10@users.sourceforge.net> Cc: Al Viro <viro@zeniv.linux.org.uk> Cc: Christoph Hellwig <hch@lst.de> Cc: Jan Kara <jack@suse.cz> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2013-02-28 09:03:04 +08:00
.lookup = hfsplus_lookup,
.create = hfsplus_create,
.link = hfsplus_link,
.unlink = hfsplus_unlink,
.mkdir = hfsplus_mkdir,
.rmdir = hfsplus_rmdir,
.symlink = hfsplus_symlink,
.mknod = hfsplus_mknod,
.rename = hfsplus_rename,
.listxattr = hfsplus_listxattr,
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-17 06:20:36 +08:00
};
[PATCH] Make most file operations structs in fs/ const This is a conversion to make the various file_operations structs in fs/ const. Basically a regexp job, with a few manual fixups The goal is both to increase correctness (harder to accidentally write to shared datastructures) and reducing the false sharing of cachelines with things that get dirty in .data (while .rodata is nicely read only and thus cache clean) Signed-off-by: Arjan van de Ven <arjan@infradead.org> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-03-28 17:56:42 +08:00
const struct file_operations hfsplus_dir_operations = {
hfsplus: write up fsync for directories fsync is supposed to not just work on regular files, but also on directories. Fortunately enough hfsplus_file_fsync works just fine for directories, so we can just wire it up. Signed-off-by: Christoph Hellwig <hch@tuxera.com>
2010-11-23 21:38:10 +08:00
.fsync = hfsplus_file_fsync,
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-17 06:20:36 +08:00
.read = generic_read_dir,
hfsplus: switch to ->iterate_shared() We need to protect the list of hfsplus_readdir_data against parallel insertions (in readdir) and removals (in release). Add a spinlock for that. Note that it has nothing to do with protection of hfsplus_readdir_data->key - we have an exclusion between hfsplus_readdir() and hfsplus_delete_cat() on directory lock and between several hfsplus_readdir() for the same struct file on ->f_pos_lock. The spinlock is strictly for list changes. Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2016-05-13 08:02:09 +08:00
.iterate_shared = hfsplus_readdir,
hfsplus: Push down BKL into ioctl function HFS is one of the remaining users of the ->ioctl function, convert it blindly to unlocked_ioctl by pushing down the BKL. Signed-off-by: Arnd Bergmann <arnd@arndb.de> Signed-off-by: Frederic Weisbecker <fweisbec@gmail.com>
2010-04-27 22:24:20 +08:00
.unlocked_ioctl = hfsplus_ioctl,
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-17 06:20:36 +08:00
.llseek = generic_file_llseek,
.release = hfsplus_dir_release,
};