Merge conditional unlock/lock in the same condition to avoid sparse
warning:
fs/reiserfs/journal.c:703:36: warning: context imbalance in 'add_to_chunk' - unexpected unlock
Signed-off-by: Fabian Frederick <fabf@skynet.be>
Cc: Jeff Mahoney <jeffm@suse.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Pull vfs updates from Al Viro:
"The big thing in this pile is Eric's unmount-on-rmdir series; we
finally have everything we need for that. The final piece of prereqs
is delayed mntput() - now filesystem shutdown always happens on
shallow stack.
Other than that, we have several new primitives for iov_iter (Matt
Wilcox, culled from his XIP-related series) pushing the conversion to
->read_iter()/ ->write_iter() a bit more, a bunch of fs/dcache.c
cleanups and fixes (including the external name refcounting, which
gives consistent behaviour of d_move() wrt procfs symlinks for long
and short names alike) and assorted cleanups and fixes all over the
place.
This is just the first pile; there's a lot of stuff from various
people that ought to go in this window. Starting with
unionmount/overlayfs mess... ;-/"
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs: (60 commits)
fs/file_table.c: Update alloc_file() comment
vfs: Deduplicate code shared by xattr system calls operating on paths
reiserfs: remove pointless forward declaration of struct nameidata
don't need that forward declaration of struct nameidata in dcache.h anymore
take dname_external() into fs/dcache.c
let path_init() failures treated the same way as subsequent link_path_walk()
fix misuses of f_count() in ppp and netlink
ncpfs: use list_for_each_entry() for d_subdirs walk
vfs: move getname() from callers to do_mount()
gfs2_atomic_open(): skip lookups on hashed dentry
[infiniband] remove pointless assignments
gadgetfs: saner API for gadgetfs_create_file()
f_fs: saner API for ffs_sb_create_file()
jfs: don't hash direct inode
[s390] remove pointless assignment of ->f_op in vmlogrdr ->open()
ecryptfs: ->f_op is never NULL
android: ->f_op is never NULL
nouveau: __iomem misannotations
missing annotation in fs/file.c
fs: namespace: suppress 'may be used uninitialized' warnings
...
MAXQUOTAS value defines maximum number of quota types VFS supports.
This isn't necessarily the number of types reiserfs supports and with
addition of project quotas these two numbers stop matching. So make
reiserfs use its private definition.
CC: reiserfs-devel@vger.kernel.org
CC: Jeff Mahoney <jeffm@suse.de>
Signed-off-by: Jan Kara <jack@suse.cz>
Pull quota, reiserfs, UDF updates from Jan Kara:
"Scalability improvements for quota, a few reiserfs fixes, and couple
of misc cleanups (udf, ext2)"
* 'for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jack/linux-fs:
reiserfs: Fix use after free in journal teardown
reiserfs: fix corruption introduced by balance_leaf refactor
udf: avoid redundant memcpy when writing data in ICB
fs/udf: re-use hex_asc_upper_{hi,lo} macros
fs/quota: kernel-doc warning fixes
udf: use linux/uaccess.h
fs/ext2/super.c: Drop memory allocation cast
quota: remove dqptr_sem
quota: simplify remove_inode_dquot_ref()
quota: avoid unnecessary dqget()/dqput() calls
quota: protect Q_GETFMT by dqonoff_mutex
If do_journal_release() races with do_journal_end() which requeues
delayed works for transaction flushing, we can leave work items for
flushing outstanding transactions queued while freeing them. That
results in use after free and possible crash in run_timers_softirq().
Fix the problem by not requeueing works if superblock is being shut down
(MS_ACTIVE not set) and using cancel_delayed_work_sync() in
do_journal_release().
CC: stable@vger.kernel.org
Signed-off-by: Jan Kara <jack@suse.cz>
Fix checkpatch warning:
WARNING: Missing a blank line after declarations
Signed-off-by: Fabian Frederick <fabf@skynet.be>
Cc: Jeff Mahoney <jeffm@suse.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Commits f1f007c308 (reiserfs: balance_leaf refactor, pull out
balance_leaf_insert_left) and cf22df182b (reiserfs: balance_leaf
refactor, pull out balance_leaf_paste_left) missed that the `body'
pointer was getting repositioned. Subsequent users of the pointer
would expect it to be repositioned, and as a result, parts of the
tree would get overwritten. The most common observed corruption
is indirect block pointers being overwritten.
Since the body value isn't actually used anymore in the called routines,
we can pass back the offset it should be shifted. We constify the body
and ih pointers in the balance_leaf as a mostly-free preventative measure.
Cc: <stable@vger.kernel.org> # 3.16
Reported-and-tested-by: Jeff Chua <jeff.chua.linux@gmail.com>
Signed-off-by: Jeff Mahoney <jeffm@suse.com>
Signed-off-by: Jan Kara <jack@suse.cz>
Pull vfs updates from Al Viro:
"This the bunch that sat in -next + lock_parent() fix. This is the
minimal set; there's more pending stuff.
In particular, I really hope to get acct.c fixes merged this cycle -
we need that to deal sanely with delayed-mntput stuff. In the next
pile, hopefully - that series is fairly short and localized
(kernel/acct.c, fs/super.c and fs/namespace.c). In this pile: more
iov_iter work. Most of prereqs for ->splice_write with sane locking
order are there and Kent's dio rewrite would also fit nicely on top of
this pile"
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs: (70 commits)
lock_parent: don't step on stale ->d_parent of all-but-freed one
kill generic_file_splice_write()
ceph: switch to iter_file_splice_write()
shmem: switch to iter_file_splice_write()
nfs: switch to iter_splice_write_file()
fs/splice.c: remove unneeded exports
ocfs2: switch to iter_file_splice_write()
->splice_write() via ->write_iter()
bio_vec-backed iov_iter
optimize copy_page_{to,from}_iter()
bury generic_file_aio_{read,write}
lustre: get rid of messing with iovecs
ceph: switch to ->write_iter()
ceph_sync_direct_write: stop poking into iov_iter guts
ceph_sync_read: stop poking into iov_iter guts
new helper: copy_page_from_iter()
fuse: switch to ->write_iter()
btrfs: switch to ->write_iter()
ocfs2: switch to ->write_iter()
xfs: switch to ->write_iter()
...
iter_file_splice_write() - a ->splice_write() instance that gathers the
pipe buffers, builds a bio_vec-based iov_iter covering those and feeds
it to ->write_iter(). A bunch of simple cases coverted to that...
[AV: fixed the braino spotted by Cyrill]
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Pull reiserfs and ext3 changes from Jan Kara:
"Big reiserfs cleanup from Jeff, an ext3 deadlock fix, and some small
cleanups"
* 'for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jack/linux-fs: (34 commits)
reiserfs: Fix compilation breakage with CONFIG_REISERFS_CHECK
ext3: Fix deadlock in data=journal mode when fs is frozen
reiserfs: call truncate_setsize under tailpack mutex
fs/jbd/revoke.c: replace shift loop by ilog2
reiserfs: remove obsolete __constant_cpu_to_le32
reiserfs: balance_leaf refactor, split up balance_leaf_when_delete
reiserfs: balance_leaf refactor, format balance_leaf_finish_node
reiserfs: balance_leaf refactor, format balance_leaf_new_nodes_paste
reiserfs: balance_leaf refactor, format balance_leaf_paste_right
reiserfs: balance_leaf refactor, format balance_leaf_insert_right
reiserfs: balance_leaf refactor, format balance_leaf_paste_left
reiserfs: balance_leaf refactor, format balance_leaf_insert_left
reiserfs: balance_leaf refactor, pull out balance_leaf{left, right, new_nodes, finish_node}
reiserfs: balance_leaf refactor, pull out balance_leaf_finish_node_paste
reiserfs: balance_leaf refactor pull out balance_leaf_finish_node_insert
reiserfs: balance_leaf refactor, pull out balance_leaf_new_nodes_paste
reiserfs: balance_leaf refactor, pull out balance_leaf_new_nodes_insert
reiserfs: balance_leaf refactor, pull out balance_leaf_paste_right
reiserfs: balance_leaf refactor, pull out balance_leaf_insert_right
reiserfs: balance_leaf refactor, pull out balance_leaf_paste_left
...
There was a bug in debug printout when CONFIG_REISERFS_CHECK was
enabled so one of the assertions in do_balan.c didn't compile. Fix it.
Fixes: 0080e9f9d3
Signed-off-by: Jan Kara <jack@suse.cz>
__constant_cpu_to_le32 converted to cpu_to_le32
Signed-off-by: Fabian Frederick <fabf@skynet.be>
Cc: Jeff Mahoney <jeffm@suse.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Prior to commit 0e4f6a791b (Fix reiserfs_file_release()), reiserfs
truncates serialized on i_mutex. They mostly still do, with the exception
of reiserfs_file_release. That blocks out other writers via the tailpack
mutex and the inode openers counter adjusted in reiserfs_file_open.
However, NFS will call reiserfs_setattr without having called ->open, so
we end up with a race when nfs is calling ->setattr while another
process is releasing the file. Ultimately, it triggers the
BUG_ON(inode->i_size != new_file_size) check in maybe_indirect_to_direct.
The solution is to pull the lock into reiserfs_setattr to encompass the
truncate_setsize call as well.
Signed-off-by: Jeff Mahoney <jeffm@suse.com>
Cc: <stable@vger.kernel.org>
Signed-off-by: Jan Kara <jack@suse.cz>
__constant_cpu_to_le32 converted to cpu_to_le32
Cc: reiserfs-devel@vger.kernel.org
Cc: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Fabian Frederick <fabf@skynet.be>
Signed-off-by: Jan Kara <jack@suse.cz>
Splut up balance_leaf_when_delete into:
balance_leaf_when_delete_del
balance_leaf_when_cut
balance_leaf_when_delete_left
Also reformat to adhere to CodingStyle.
Signed-off-by: Jeff Mahoney <jeffm@suse.com>
Signed-off-by: Jan Kara <jack@suse.cz>
Split out balance_leaf_finish_node_dirent from balance_leaf_paste_finish_node.
Also reformat to adhere to CodingStyle.
Signed-off-by: Jeff Mahoney <jeffm@suse.com>
Signed-off-by: Jan Kara <jack@suse.cz>
Break up balance_leaf_paste_new_nodes into:
balance_leaf_paste_new_nodes_shift
balance_leaf_paste_new_nodes_shift_dirent
balance_leaf_paste_new_nodes_whole
and keep balance_leaf_paste_new_nodes as a handler to select which
is appropriate.
Also reformat to adhere to CodingStyle.
Signed-off-by: Jeff Mahoney <jeffm@suse.com>
Signed-off-by: Jan Kara <jack@suse.cz>
Break up balance_leaf_paste_right into:
balance_leaf_paste_right_shift
balance_leaf_paste_right_shift_dirent
balance_leaf_paste_right_whole
and keep balance_leaf_paste_right as a handler to select which is appropriate.
Also reformat to adhere to CodingStyle.
Signed-off-by: Jeff Mahoney <jeffm@suse.com>
Signed-off-by: Jan Kara <jack@suse.cz>
Break up balance_leaf_paste_left into:
balance_leaf_paste_left_shift
balance_leaf_paste_left_shift_dirent
balance_leaf_paste_left_whole
and keep balance_leaf_paste_left as a handler to select which is appropriate.
Also reformat to adhere to CodingStyle.
Signed-off-by: Jeff Mahoney <jeffm@suse.com>
Signed-off-by: Jan Kara <jack@suse.cz>
This patch factors out a new balance_leaf_finish_node_paste from the code
in balance_leaf responsible for pasting new content into existing items
held in S[0].
Signed-off-by: Jeff Mahoney <jeffm@suse.com>
Signed-off-by: Jan Kara <jack@suse.cz>
This patch factors out a new balance_leaf_finish_node_insert from the code
in balance_leaf responsible for inserting new items into S[0]
It has not been reformatted yet.
Signed-off-by: Jeff Mahoney <jeffm@suse.com>
Signed-off-by: Jan Kara <jack@suse.cz>
This patch factors out a new balance_leaf_new_nodes_insert from the code
in balance_leaf responsible for pasting new content into existing items
that may have been shifted into new nodes in the tree.
It has not been reformatted yet.
Signed-off-by: Jeff Mahoney <jeffm@suse.com>
Signed-off-by: Jan Kara <jack@suse.cz>
This patch factors out a new balance_leaf_new_nodes_insert from the code
in balance_leaf responsible for inserting new items into new nodes in
the tree.
It has not been reformatted yet.
Signed-off-by: Jeff Mahoney <jeffm@suse.com>
Signed-off-by: Jan Kara <jack@suse.cz>
This patch factors out a new balance_leaf_paste_right from the code in
balance_leaf responsible for pasting new contents into an existing item
located in the node to the right of S[0] in the tree.
It has not been reformatted yet.
Signed-off-by: Jeff Mahoney <jeffm@suse.com>
Signed-off-by: Jan Kara <jack@suse.cz>
This patch factors out a new balance_leaf_insert_right from the code in
balance_leaf responsible for inserting new items into the node to
the right of S[0] in the tree.
Signed-off-by: Jeff Mahoney <jeffm@suse.com>
Signed-off-by: Jan Kara <jack@suse.cz>
This patch factors out a new balance_leaf_paste_left from the code in
balance_leaf responsible for pasting new content into an existing item
located in the node to the left of S[0] in the tree.
Signed-off-by: Jeff Mahoney <jeffm@suse.com>
Signed-off-by: Jan Kara <jack@suse.cz>
This patch factors out a new balance_leaf_insert_left from the code in
balance_leaf responsible for inserting new items into the node to
the left of S[0] in the tree.
It is not yet formatted correctly.
Signed-off-by: Jeff Mahoney <jeffm@suse.com>
Signed-off-by: Jan Kara <jack@suse.cz>
This patch pushes the rest of the state variables in balance_leaf into
the tree_balance structure so we can use them when we split balance_leaf
into separate functions.
Signed-off-by: Jeff Mahoney <jeffm@suse.com>
Signed-off-by: Jan Kara <jack@suse.cz>
The comments in balance_leaf are as bad as the code. This patch shifts
them around to fit in 80 columns and be easier to read.
Signed-off-by: Jeff Mahoney <jeffm@suse.com>
Signed-off-by: Jan Kara <jack@suse.cz>
The hash detection code uses long ugly macros multiple times to get the same
value. This patch cleans it up to be easier to read.
[JK: Fixed up path leak in find_hash_out()]
Signed-off-by: Jeff Mahoney <jeffm@suse.com>
Signed-off-by: Jan Kara <jack@suse.cz>
The reiserfs code is littered with extra parens in places where the authors
may not have been certain about precedence of & vs ->. This patch cleans them
out.
Signed-off-by: Jeff Mahoney <jeffm@suse.com>
Signed-off-by: Jan Kara <jack@suse.cz>
This patch moves reiserfs closer to adhering to the style rules by
removing leading whitespace from labels.
Signed-off-by: Jeff Mahoney <jeffm@suse.com>
Signed-off-by: Jan Kara <jack@suse.cz>
make_empty_dir_item_v1 and make_empty_dir_item also needed a bit of cleanup
but it's clearer to use separate pointers rather than the array positions
for just two items.
Signed-off-by: Jeff Mahoney <jeffm@suse.com>
Signed-off-by: Jan Kara <jack@suse.cz>
journal_join is always called with a block count of 1. Let's just get
rid of the argument.
Signed-off-by: Jeff Mahoney <jeffm@suse.com>
Signed-off-by: Jan Kara <jack@suse.cz>
journal_mark_dirty doesn't need a separate sb argument; It's provided
by the transaction handle.
Signed-off-by: Jeff Mahoney <jeffm@suse.com>
Signed-off-by: Jan Kara <jack@suse.cz>
journal_end doesn't need a separate sb argument; it's provided by the
transaction handle.
Signed-off-by: Jeff Mahoney <jeffm@suse.com>
Signed-off-by: Jan Kara <jack@suse.cz>
journal_end takes a block count argument but doesn't actually use it
for anything. We can remove it.
Signed-off-by: Jeff Mahoney <jeffm@suse.com>
Signed-off-by: Jan Kara <jack@suse.cz>
This patch reformats comments in the reiserfs code to fit in 80 columns and
to follow the style rules.
There is no functional change but it helps make my eyes bleed less.
Signed-off-by: Jeff Mahoney <jeffm@suse.com>
Signed-off-by: Jan Kara <jack@suse.cz>
Fabian Frederick