Commit Graph

691931 Commits

Author SHA1 Message Date
Jaegeuk Kim bf9e697ecd f2fs: expose features to sysfs entry
This patch exposes what features are supported by current f2fs build to sysfs
entry via:

/sys/fs/f2fs/features/
/sys/fs/f2fs/dev/features

Reviewed-by: Chao Yu <yuchao0@huawei.com>
Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>
2017-08-03 19:09:51 -07:00
Chao Yu 704956ecf5 f2fs: support inode checksum
This patch adds to support inode checksum in f2fs.

Signed-off-by: Chao Yu <yuchao0@huawei.com>
[Jaegeuk Kim: fix verification flow]
Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>
2017-08-03 19:09:26 -07:00
Jaegeuk Kim 4f31d26b0c f2fs: return wrong error number on f2fs_quota_write
This must return size, not error number.

Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>
2017-08-03 19:05:05 -07:00
Yunlong Song 401db79f61 f2fs: provide f2fs_balance_fs to __write_node_page
Let node writeback also do f2fs_balance_fs to ensure there are always enough free
segments.

Signed-off-by: Yunlong Song <yunlong.song@huawei.com>
Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>
2017-08-03 19:05:04 -07:00
Chao Yu ddc34e328d f2fs: introduce f2fs_statfs_project
This patch introduces f2fs_statfs_project, it enables to show usage
status of directory tree which is limited with project quota.

Signed-off-by: Chao Yu <yuchao0@huawei.com>
Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>
2017-07-31 16:48:36 -07:00
Chao Yu 2c1d030569 f2fs: support F2FS_IOC_FS{GET,SET}XATTR
This patch adds FS_IOC_FSSETXATTR/FS_IOC_FSGETXATTR ioctl interface
support for f2fs. The interface is kept consistent with the one
of ext4/xfs.

Signed-off-by: Chao Yu <yuchao0@huawei.com>
Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>
2017-07-31 16:48:35 -07:00
Jaegeuk Kim b6a245eb34 f2fs: don't need to wait for node writes for atomic write
We have a node chain to serialize node block writes, so if any IOs for
node block writes are reordered, we'll get broken node chain. IOWs,
roll-forward recovery will see all or none node blocks given fsync
mark.

E.g.,
Node chain consists of:
 N1 -> N2 -> N3 -> NFSYNC -> N1' -> N2' -> N'FSYNC

Reordered to:
1) N1 -> N2 -> N3 -> N2' -> NFSYNC -> N'FSYNC -> power-cut
2) N1 -> N2 -> N3 -> N1' -> NFSYNC -> power-cut
3) N1 -> N2 -> NFSYNC -> N1' -> N'FSYNC -> N3 -> power-cut
4) N1 -> NFSYNC -> N1' -> N2' -> N'FSYNC -> N3 -> power-cut

Roll-forward recovery can proceed to:
1) N1 -> N2 -> N3 -> NFSYNC -> X
2) N1 -> N2 -> N3 -> NFSYNC -> N1' -> X
3) N1 -> N2 -> N3 -> FSYNC -> N1' -> X
4) N1 -> X

Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>
2017-07-31 16:48:34 -07:00
Jaegeuk Kim dc6b205510 f2fs: avoid naming confusion of sysfs init
This patch changes the function names of sysfs init to follow ext4.

f2fs_init_sysfs <-> f2fs_register_sysfs
f2fs_exit_sysfs <-> f2fs_unregister_sysfs

Suggested-by: Chao Yu <yuchao0@huawei.com>
Reivewed-by: Chao Yu <yuchao0@huawei.com>
Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>
2017-07-31 16:48:33 -07:00
Chao Yu 5c57132eaf f2fs: support project quota
This patch adds to support plain project quota.

Signed-off-by: Chao Yu <yuchao0@huawei.com>
Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>
2017-07-31 16:48:32 -07:00
Chao Yu a6d3a479ae f2fs: record quota during dot{,dot} recovery
In ->lookup(), we will have a try to recover dot or dotdot for
corrupted directory, once disk quota is on, if it allocates new
block during dotdot recovery, we need to record disk quota info
for the allocation, so this patch fixes this issue by adding
missing dquot_initialize() in __recover_dot_dentries.

Signed-off-by: Chao Yu <yuchao0@huawei.com>
Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>
2017-07-31 16:48:31 -07:00
Chao Yu 7a2af766af f2fs: enhance on-disk inode structure scalability
This patch add new flag F2FS_EXTRA_ATTR storing in inode.i_inline
to indicate that on-disk structure of current inode is extended.

In order to extend, we changed the inode structure a bit:

Original one:

struct f2fs_inode {
	...
	struct f2fs_extent i_ext;
	__le32 i_addr[DEF_ADDRS_PER_INODE];
	__le32 i_nid[DEF_NIDS_PER_INODE];
}

Extended one:

struct f2fs_inode {
        ...
        struct f2fs_extent i_ext;
	union {
		struct {
			__le16 i_extra_isize;
			__le16 i_padding;
			__le32 i_extra_end[0];
		};
		__le32 i_addr[DEF_ADDRS_PER_INODE];
	};
        __le32 i_nid[DEF_NIDS_PER_INODE];
}

Once F2FS_EXTRA_ATTR is set, we will steal four bytes in the head of
i_addr field for storing i_extra_isize and i_padding. with i_extra_isize,
we can calculate actual size of reserved space in i_addr, available
attribute fields included in total extra attribute fields for current
inode can be described as below:

  +--------------------+
  | .i_mode            |
  | ...                |
  | .i_ext             |
  +--------------------+
  | .i_extra_isize     |-----+
  | .i_padding         |     |
  | .i_prjid           |     |
  | .i_atime_extra     |     |
  | .i_ctime_extra     |     |
  | .i_mtime_extra     |<----+
  | .i_inode_cs        |<----- store blkaddr/inline from here
  | .i_xattr_cs        |
  | ...                |
  +--------------------+
  |                    |
  |    block address   |
  |                    |
  +--------------------+
  | .i_nid             |
  +--------------------+
  |   node_footer      |
  | (nid, ino, offset) |
  +--------------------+

Hence, with this patch, we would enhance scalability of f2fs inode for
storing more newly added attribute.

Signed-off-by: Chao Yu <yuchao0@huawei.com>
Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>
2017-07-31 16:48:30 -07:00
Chao Yu f247037120 f2fs: make max inline size changeable
This patch tries to make below macros calculating max inline size,
inline dentry field size considerring reserving size-changeable
space:
- MAX_INLINE_DATA
- NR_INLINE_DENTRY
- INLINE_DENTRY_BITMAP_SIZE
- INLINE_RESERVED_SIZE

Then, when inline_{data,dentry} options is enabled, it allows us to
reserve inline space with different size flexibly for adding newly
introduced inode attribute.

Signed-off-by: Chao Yu <yuchao0@huawei.com>
Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>
2017-07-31 16:48:29 -07:00
Jaegeuk Kim e65ef20781 f2fs: add ioctl to expose current features
This patch adds an ioctl to provide feature information to user.
For exapmle, SQLite can use this ioctl to detect whether f2fs support atomic
write or not.

Reviewed-by: Chao Yu <yuchao0@huawei.com>
Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>
2017-07-31 16:48:28 -07:00
Chao Yu dc6febb6bc f2fs: make background threads of f2fs being aware of freezing
When ->freeze_fs is called from lvm for doing snapshot, it needs to
make sure there will be no more changes in filesystem's data, however,
previously, background threads like GC thread wasn't aware of freezing,
so in environment with active background threads, data of snapshot
becomes unstable.

This patch fixes this issue by adding sb_{start,end}_intwrite in
below background threads:
- GC thread
- flush thread
- discard thread

Note that, don't use sb_start_intwrite() in gc_thread_func() due to:

generic/241 reports below bug:

 ======================================================
 WARNING: possible circular locking dependency detected
 4.13.0-rc1+ #32 Tainted: G           O
 ------------------------------------------------------
 f2fs_gc-250:0/22186 is trying to acquire lock:
  (&sbi->gc_mutex){+.+...}, at: [<f8fa7f0b>] f2fs_sync_fs+0x7b/0x1b0 [f2fs]

 but task is already holding lock:
  (sb_internal#2){++++.-}, at: [<f8fb5609>] gc_thread_func+0x159/0x4a0 [f2fs]

 which lock already depends on the new lock.

 the existing dependency chain (in reverse order) is:

 -> #2 (sb_internal#2){++++.-}:
        __lock_acquire+0x405/0x7b0
        lock_acquire+0xae/0x220
        __sb_start_write+0x11d/0x1f0
        f2fs_evict_inode+0x2d6/0x4e0 [f2fs]
        evict+0xa8/0x170
        iput+0x1fb/0x2c0
        f2fs_sync_inode_meta+0x3f/0xf0 [f2fs]
        write_checkpoint+0x1b1/0x750 [f2fs]
        f2fs_sync_fs+0x85/0x1b0 [f2fs]
        f2fs_do_sync_file.isra.24+0x137/0xa30 [f2fs]
        f2fs_sync_file+0x34/0x40 [f2fs]
        vfs_fsync_range+0x4a/0xa0
        do_fsync+0x3c/0x60
        SyS_fdatasync+0x15/0x20
        do_fast_syscall_32+0xa1/0x1b0
        entry_SYSENTER_32+0x4c/0x7b

 -> #1 (&sbi->cp_mutex){+.+...}:
        __lock_acquire+0x405/0x7b0
        lock_acquire+0xae/0x220
        __mutex_lock+0x4f/0x830
        mutex_lock_nested+0x25/0x30
        write_checkpoint+0x2f/0x750 [f2fs]
        f2fs_sync_fs+0x85/0x1b0 [f2fs]
        sync_filesystem+0x67/0x80
        generic_shutdown_super+0x27/0x100
        kill_block_super+0x22/0x50
        kill_f2fs_super+0x3a/0x40 [f2fs]
        deactivate_locked_super+0x3d/0x70
        deactivate_super+0x40/0x60
        cleanup_mnt+0x39/0x70
        __cleanup_mnt+0x10/0x20
        task_work_run+0x69/0x80
        exit_to_usermode_loop+0x57/0x92
        do_fast_syscall_32+0x18c/0x1b0
        entry_SYSENTER_32+0x4c/0x7b

 -> #0 (&sbi->gc_mutex){+.+...}:
        validate_chain.isra.36+0xc50/0xdb0
        __lock_acquire+0x405/0x7b0
        lock_acquire+0xae/0x220
        __mutex_lock+0x4f/0x830
        mutex_lock_nested+0x25/0x30
        f2fs_sync_fs+0x7b/0x1b0 [f2fs]
        f2fs_balance_fs_bg+0xb9/0x200 [f2fs]
        gc_thread_func+0x302/0x4a0 [f2fs]
        kthread+0xe9/0x120
        ret_from_fork+0x19/0x24

 other info that might help us debug this:

 Chain exists of:
   &sbi->gc_mutex --> &sbi->cp_mutex --> sb_internal#2

  Possible unsafe locking scenario:

        CPU0                    CPU1
        ----                    ----
   lock(sb_internal#2);
                                lock(&sbi->cp_mutex);
                                lock(sb_internal#2);
   lock(&sbi->gc_mutex);

  *** DEADLOCK ***

 1 lock held by f2fs_gc-250:0/22186:
  #0:  (sb_internal#2){++++.-}, at: [<f8fb5609>] gc_thread_func+0x159/0x4a0 [f2fs]

 stack backtrace:
 CPU: 2 PID: 22186 Comm: f2fs_gc-250:0 Tainted: G           O    4.13.0-rc1+ #32
 Hardware name: innotek GmbH VirtualBox/VirtualBox, BIOS VirtualBox 12/01/2006
 Call Trace:
  dump_stack+0x5f/0x92
  print_circular_bug+0x1b3/0x1bd
  validate_chain.isra.36+0xc50/0xdb0
  ? __this_cpu_preempt_check+0xf/0x20
  __lock_acquire+0x405/0x7b0
  lock_acquire+0xae/0x220
  ? f2fs_sync_fs+0x7b/0x1b0 [f2fs]
  __mutex_lock+0x4f/0x830
  ? f2fs_sync_fs+0x7b/0x1b0 [f2fs]
  mutex_lock_nested+0x25/0x30
  ? f2fs_sync_fs+0x7b/0x1b0 [f2fs]
  f2fs_sync_fs+0x7b/0x1b0 [f2fs]
  f2fs_balance_fs_bg+0xb9/0x200 [f2fs]
  gc_thread_func+0x302/0x4a0 [f2fs]
  ? preempt_schedule_common+0x2f/0x4d
  ? f2fs_gc+0x540/0x540 [f2fs]
  kthread+0xe9/0x120
  ? f2fs_gc+0x540/0x540 [f2fs]
  ? kthread_create_on_node+0x30/0x30
  ret_from_fork+0x19/0x24

The deadlock occurs in below condition:
GC Thread			Thread B
- sb_start_intwrite
				- f2fs_sync_file
				 - f2fs_sync_fs
				  - mutex_lock(&sbi->gc_mutex)
				   - write_checkpoint
				    - block_operations
				     - f2fs_sync_inode_meta
				      - iput
				       - sb_start_intwrite
 - mutex_lock(&sbi->gc_mutex)

Fix this by altering sb_start_intwrite to sb_start_write_trylock.

Signed-off-by: Chao Yu <yuchao0@huawei.com>
Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>
2017-07-31 16:47:27 -07:00
Jaegeuk Kim 7a10f0177e f2fs: don't give partially written atomic data from process crash
This patch resolves the below scenario.

== Process 1 ==     == Process 2 ==
open(w)             open(rw)
begin
write(new_#1)
process_crash
  f_op->flush
  locks_remove_posix
  f_op>release
                    read (new_#1)

In order to avoid corrupted database caused by new_#1, we must do roll-back
at process_crash time. In order to check that, this patch keeps task which
triggers transaction begin, and does roll-back in f_op->flush before removing
file locks.

Reviewed-by: Chao Yu <yuchao0@huawei.com>
Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>
2017-07-28 17:49:01 -07:00
Jaegeuk Kim 640cc18982 f2fs: give a try to do atomic write in -ENOMEM case
It'd be better to retry writing atomic pages when we get -ENOMEM.

Reviewed-by: Chao Yu <yuchao0@huawei.com>
Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>
2017-07-28 17:49:00 -07:00
Ernesto A. Fernández 14af20fcb1 f2fs: preserve i_mode if __f2fs_set_acl() fails
When changing a file's acl mask, __f2fs_set_acl() will first set the
group bits of i_mode to the value of the mask, and only then set the
actual extended attribute representing the new acl.

If the second part fails (due to lack of space, for example) and the
file had no acl attribute to begin with, the system will from now on
assume that the mask permission bits are actual group permission bits,
potentially granting access to the wrong users.

Prevent this by only changing the inode mode after the acl has been set.

Signed-off-by: Ernesto A. Fernández <ernesto.mnd.fernandez@gmail.com>
Reviewed-by: Chao Yu <yuchao0@huawei.com>
Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>
2017-07-28 17:48:54 -07:00
Yunlei He 8790568255 f2fs: alloc new nids for xattr block in recovery
recovery file A:			recovery file B:
	-get_dnode_of_data
		-alloc_nid
					-recover_xattr_data
						-set_node_addr(sbi, &ni, NEW_ADDR, false);
							--->bug_on for nid has been used by file A

In recovery process, new allocated node blocks may "reuse" xattr block
nids, this patch alloc new nids for xattr blocks in recovery process to
avoid this problem.

Signed-off-by: Yunlei He <heyunlei@huawei.com>
Reviewed-by: Chao Yu <yuchao0@huawei.com>
Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>
2017-07-26 19:34:30 -07:00
Chao Yu 76a9dd85d4 f2fs: spread struct f2fs_dentry_ptr for inline path
Use f2fs_dentry_ptr structure to indicate inline dentry structure as
much as possible, so we can wrap inline dentry with size-fixed fields
to the one with size-changeable fields. With this change, we can
handle size-changeable inline dentry more easily.

Signed-off-by: Chao Yu <yuchao0@huawei.com>
Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>
2017-07-26 19:34:30 -07:00
Yunlei He 5f4ce6abc2 f2fs: remove unused input parameter
This patch remove unused input parameter in function
new_node_page.

Signed-off-by: Yunlei He <heyunlei@huawei.com>
Signed-off-by: Yong Sheng <shengyong1@huawei.com>
Reviewed-by: Chao Yu <yuchao0@huawei.com>
Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>
2017-07-26 19:34:30 -07:00
Linus Torvalds fd2b2c57ec SCSI fixes on 20170725
Three small fixes.  The transfer size fixes are actually correcting
 some performance drops on the hpsa and smartpqi cards.  The cards
 actually have an internal cache for request speed up but bypass it for
 transfers > 1MB.  Since 4.3 the efficiency of our merges has rendered
 the cache mostly unused, so limit transfers to under 1MB to recover
 the cache boost.
 
 Signed-off-by: James E.J. Bottomley <jejb@linux.vnet.ibm.com>
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Merge tag 'scsi-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi

Pull SCSI fixes from James Bottomley:
 "Three small fixes.

  The transfer size fixes are actually correcting some performance drops
  on the hpsa and smartpqi cards. The cards actually have an internal
  cache for request speed up but bypass it for transfers > 1MB. Since
  4.3 the efficiency of our merges has rendered the cache mostly unused,
  so limit transfers to under 1MB to recover the cache boost"

* tag 'scsi-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi:
  scsi: sg: fix static checker warning in sg_is_valid_dxfer
  scsi: smartpqi: limit transfer length to 1MB
  scsi: hpsa: limit transfer length to 1MB
2017-07-25 20:10:10 -07:00
Linus Torvalds 5d4eeb8a61 uuid fixups:
- add a missing "!" in the uuid tests
  - remove the last remaining user of the uuid_be type, and then
    the type and its helpers
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Merge tag 'uuid-for-4.13-2' of git://git.infradead.org/users/hch/uuid

Pull uuid fixes from Christoph Hellwig:

 - add a missing "!" in the uuid tests

 - remove the last remaining user of the uuid_be type, and then the type
   and its helpers

* tag 'uuid-for-4.13-2' of git://git.infradead.org/users/hch/uuid:
  uuid: remove uuid_be
  thunderbolt: use uuid_t instead of uuid_be
  uuid: fix incorrect uuid_equal conversion in test_uuid_test
2017-07-25 19:46:05 -07:00
Linus Torvalds cef55b518c dma mapping fixes for 4.13-rc2:
- split the global dma coherent pool from the per-device pool.
    This fixes a regression in the earlier 4.13 pull requests where the
    global pool would override a per-device CMA pool. (Vladimir Murzin).
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Merge tag 'dma-mapping-4.13-2' of git://git.infradead.org/users/hch/dma-mapping

Pull dma mapping fixes from Christoph Hellwig:
 "split the global dma coherent pool from the per-device pool.

  This fixes a regression in the earlier 4.13 pull requests where the
  global pool would override a per-device CMA pool (Vladimir Murzin)"

* tag 'dma-mapping-4.13-2' of git://git.infradead.org/users/hch/dma-mapping:
  ARM: NOMMU: Wire-up default DMA interface
  dma-coherent: introduce interface for default DMA pool
2017-07-25 17:17:18 -07:00
Linus Torvalds 25f6a53799 JFS fixes for 4.13
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Merge tag 'jfs-4.13' of git://github.com/kleikamp/linux-shaggy

Pull JFS fixes from David Kleikamp.

* tag 'jfs-4.13' of git://github.com/kleikamp/linux-shaggy:
  jfs: preserve i_mode if __jfs_set_acl() fails
  jfs: Don't clear SGID when inheriting ACLs
  jfs: atomically read inode size
2017-07-25 08:51:57 -07:00
Linus Torvalds a9d0683e0b Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jikos/hid
Pull HID fixes from Jiri Kosina:

 - regression fix (missing IRQs) for devices that require 'always poll'
   quirk, from Dmitry Torokhov

 - new device ID addition to Ortek driver, from Benjamin Tissoires

* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jikos/hid:
  HID: ortek: add one more buggy device
  HID: usbhid: fix "always poll" quirk
2017-07-25 08:49:00 -07:00
Linus Torvalds eeb7c41d9d Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/s390/linux
Pull s390 fixes from Martin Schwidefsky:
 "Three bug fixes"

* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/s390/linux:
  s390/mm: set change and reference bit on lazy key enablement
  s390: chp: handle CRW_ERC_INIT for channel-path status change
  s390/perf: fix problem state detection
2017-07-25 08:44:27 -07:00
Christoph Hellwig 832e4c83ab uuid: remove uuid_be
Everything uses uuid_t now.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Amir Goldstein <amir73il@gmail.com>
Reviewed-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
2017-07-24 17:50:37 +02:00
Christoph Hellwig 7c39ffe7a8 thunderbolt: use uuid_t instead of uuid_be
Switch thunderbolt to the new uuid type.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Amir Goldstein <amir73il@gmail.com>
Reviewed-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Acked-by: Mika Westerberg <mika.westerberg@linux.intel.com>
2017-07-24 17:50:18 +02:00
Benjamin Tissoires c228352dc6 HID: ortek: add one more buggy device
The iHome keypad also requires the same tweak we are doing for other
Ortek devices.

Reported-by: Mairin Duffy <duffy@redhat.com>
Signed-off-by: Benjamin Tissoires <benjamin.tissoires@redhat.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
2017-07-24 17:38:21 +02:00
Linus Torvalds 520eccdfe1 Linux 4.13-rc2 2017-07-23 16:15:17 -07:00
Linus Torvalds 7683e9e529 Properly alphabetize MAINTAINERS file
This adds a perl script to actually parse the MAINTAINERS file, clean up
some whitespace in it, warn about errors in it, and then properly sort
the end result.

My perl-fu is atrocious, so the script has basically been created by
randomly putting various characters in a pile, mixing them around, and
then looking it the end result does anything interesting when used as a
perl script.

Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2017-07-23 16:06:21 -07:00
Linus Torvalds f47e07bc5f Fix up MAINTAINERS file problems
Prepping for scripting the MAINTAINERS file cleanup (and possible split)
showed a couple of cases where the headers for a couple of entries were
bogus.

There's a few different kinds of bogosities:

 - the X-GENE SOC EDAC case was confused and split over two lines

 - there were four entries for "GREYBUS PROTOCOLS DRIVERS" that were all
   different things.

 - the NOKIA N900 CAMERA SUPPORT" was duplicated

all of which were more obvious when you started doing associative arrays
in perl to track these things by the header (so that we can alphabetize
this thing properly, and so that we might split it up by the data too).

Cc: Joe Perches <joe@perches.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2017-07-23 15:08:05 -07:00
Linus Torvalds a56e88ec05 xen: fixes for 4.13-rc2
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Merge tag 'for-linus-4.13b-rc2-tag' of git://git.kernel.org/pub/scm/linux/kernel/git/xen/tip

Pull xen fixes from Juergen Gross:
 "Some fixes and cleanups for running under Xen"

* tag 'for-linus-4.13b-rc2-tag' of git://git.kernel.org/pub/scm/linux/kernel/git/xen/tip:
  xen/balloon: don't online new memory initially
  xen/x86: fix cpu hotplug
  xen/grant-table: log the lack of grants
  xen/x86: Don't BUG on CPU0 offlining
2017-07-23 11:22:45 -07:00
Juergen Gross 96edd61dcf xen/balloon: don't online new memory initially
When setting up the Xenstore watch for the memory target size the new
watch will fire at once. Don't try to reach the configured target size
by onlining new memory in this case, as the current memory size will
be smaller in almost all cases due to e.g. BIOS reserved pages.

Onlining new memory will lead to more problems e.g. undesired conflicts
with NVMe devices meant to be operated as block devices.

Instead remember the difference between target size and current size
when the watch fires for the first time and apply it to any further
size changes, too.

In order to avoid races between balloon.c and xen-balloon.c init calls
do the xen-balloon.c initialization from balloon.c.

Signed-off-by: Juergen Gross <jgross@suse.com>
Reviewed-by: Boris Ostrovsky <boris.ostrovsky@oracle.com>
Signed-off-by: Juergen Gross <jgross@suse.com>
2017-07-23 08:13:18 +02:00
Juergen Gross c185ddec54 xen/x86: fix cpu hotplug
Commit dc6416f1d7 ("xen/x86: Call
cpu_startup_entry(CPUHP_AP_ONLINE_IDLE) from xen_play_dead()")
introduced an error leading to a stack overflow of the idle task when
a cpu was brought offline/online many times: by calling
cpu_startup_entry() instead of returning at the end of xen_play_dead()
do_idle() would be entered again and again.

Don't use cpu_startup_entry(), but cpuhp_online_idle() instead allowing
to return from xen_play_dead().

Cc: <stable@vger.kernel.org> # 4.12
Signed-off-by: Juergen Gross <jgross@suse.com>
Reviewed-by: Boris Ostrovsky <boris.ostrovsky@oracle.com>
Signed-off-by: Juergen Gross <jgross@suse.com>
2017-07-23 08:13:11 +02:00
Wengang Wang 29d11cfd86 xen/grant-table: log the lack of grants
log a message when we enter this situation:
1) we already allocated the max number of available grants from hypervisor
and
2) we still need more (but the request fails because of 1)).

Sometimes the lack of grants causes IO hangs in xen_blkfront devices.
Adding this log would help debuging.

Signed-off-by: Wengang Wang <wen.gang.wang@oracle.com>
Reviewed-by: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
Reviewed-by: Junxiao Bi <junxiao.bi@oracle.com>
Reviewed-by: Juergen Gross <jgross@suse.com>
Signed-off-by: Juergen Gross <jgross@suse.com>
2017-07-23 08:09:43 +02:00
Vitaly Kuznetsov 0e4d394fe5 xen/x86: Don't BUG on CPU0 offlining
CONFIG_BOOTPARAM_HOTPLUG_CPU0 allows to offline CPU0 but Xen HVM guests
BUG() in xen_teardown_timer(). Remove the BUG_ON(), this is probably a
leftover from ancient times when CPU0 hotplug was impossible, it works
just fine for HVM.

Signed-off-by: Vitaly Kuznetsov <vkuznets@redhat.com>
Acked-by: Juergen Gross <jgross@suse.com>
Signed-off-by: Juergen Gross <jgross@suse.com>
2017-07-23 08:09:24 +02:00
Linus Torvalds 4b162c530d Avoid buffer overruns in applesmc driver
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Merge tag 'hwmon-for-linus-v4.13-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/groeck/linux-staging

Pull hwmon fix from Guenter Roeck:
 "Avoid buffer overruns in applesmc driver"

* tag 'hwmon-for-linus-v4.13-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/groeck/linux-staging:
  hwmon: (applesmc) Avoid buffer overruns
2017-07-22 09:25:00 -07:00
Linus Torvalds ae75d1aefe TTY/Serial fixes for 4.13-rc2
Here are some small tty and serial driver fixes for 4.13-rc2.  Nothing
 huge at all, a revert of a patch that turned out to break things, a fix
 up for a new tty ioctl we added in 4.13-rc1 to get the uapi definition
 correct, and a few minor serial driver fixes for reported issues.
 
 All of these have been in linux-next for a while with no reported
 issues.
 
 Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Merge tag 'tty-4.13-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/tty

Pull tty/serial fixes from Greg KH:
 "Here are some small tty and serial driver fixes for 4.13-rc2. Nothing
  huge at all, a revert of a patch that turned out to break things, a
  fix up for a new tty ioctl we added in 4.13-rc1 to get the uapi
  definition correct, and a few minor serial driver fixes for reported
  issues.

  All of these have been in linux-next for a while with no reported
  issues"

* tag 'tty-4.13-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/tty:
  tty: Fix TIOCGPTPEER ioctl definition
  tty: hide unused pty_get_peer function
  tty: serial: lpuart: Fix the logic for detecting the 32-bit type UART
  serial: imx: Prevent TX buffer PIO write when a DMA has been started
  Revert "serial: imx-serial - move DMA buffer configuration to DT"
  serial: sh-sci: Uninitialized variables in sysfs files
  serial: st-asc: Potential error pointer dereference
2017-07-22 09:00:24 -07:00
Linus Torvalds dedaff2f6d Char/Misc driver fixes for 4.13-rc2
Here are some small char and misc driver fixes for 4.13-rc2.  All fix
 reported problems with 4.13-rc1 or older kernels (like the binder
 fixes).  Full details in the shortlog.
 
 All have been in linux-next with no reported issues.
 
 Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Merge tag 'char-misc-4.13-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc

Pull char/misc driver fixes from Greg KH:
 "Here are some small char and misc driver fixes for 4.13-rc2. All fix
  reported problems with 4.13-rc1 or older kernels (like the binder
  fixes). Full details in the shortlog.

  All have been in linux-next with no reported issues"

* tag 'char-misc-4.13-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc:
  w1: omap-hdq: fix error return code in omap_hdq_probe()
  regmap: regmap-w1: Fix build troubles
  w1: Fix slave count on 1-Wire bus (resend)
  mux: mux-core: unregister mux_class in mux_exit()
  mux: remove the Kconfig question for the subsystem
  nvmem: rockchip-efuse: amend compatible rk322x-efuse to rk3228-efuse
  drivers/fsi: fix fsi_slave_mode prototype
  fsi: core: register with postcore_initcall
  thunderbolt: Correct access permissions for active NVM contents
  vmbus: re-enable channel tasklet
  spmi: pmic-arb: Always allocate ppid_to_apid table
  MAINTAINERS: Add entry for SPMI subsystem
  spmi: Include OF based modalias in device uevent
  binder: Use wake up hint for synchronous transactions.
  binder: use group leader instead of open thread
  Revert "android: binder: Sanity check at binder ioctl"
2017-07-22 08:57:24 -07:00
Linus Torvalds 55fd939e8e USB fixes for 4.13-rc2
Here are some small USB fixes for 4.13-rc2.
 
 The usual batch, gadget fixes for reported issues, as well as xhci
 fixes, and a small random collection of other fixes for reported issues.
 
 All have been in linux-next with no reported issues.
 
 Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Merge tag 'usb-4.13-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb

Pull USB fixes from Greg KH:
 "Here are some small USB fixes for 4.13-rc2.

  The usual batch, gadget fixes for reported issues, as well as xhci
  fixes, and a small random collection of other fixes for reported
  issues.

  All have been in linux-next with no reported issues"

* tag 'usb-4.13-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb: (25 commits)
  xhci: fix memleak in xhci_run()
  usb: xhci: fix spinlock recursion for USB2 test mode
  xhci: fix 20000ms port resume timeout
  usb: xhci: Issue stop EP command only when the EP state is running
  xhci: Bad Ethernet performance plugged in ASM1042A host
  xhci: Fix NULL pointer dereference when cleaning up streams for removed host
  usb: renesas_usbhs: gadget: disable all eps when the driver stops
  usb: renesas_usbhs: fix usbhsc_resume() for !USBHSF_RUNTIME_PWCTRL
  usb: gadget: udc: renesas_usb3: protect usb3_ep->started in usb3_start_pipen()
  usb: gadget: udc: renesas_usb3: fix zlp transfer by the dmac
  usb: gadget: udc: renesas_usb3: fix free size in renesas_usb3_dma_free_prd()
  usb: gadget: f_uac2: endianness fixes.
  usb: gadget: f_uac1: endianness fixes.
  include: usb: audio: specify exact endiannes of descriptors
  usb: gadget: udc: start_udc() can be static
  usb: dwc2: gadget: On USB RESET reset device address to zero
  usb: storage: return on error to avoid a null pointer dereference
  usb: typec: include linux/device.h in ucsi.h
  USB: cdc-acm: add device-id for quirky printer
  usb: dwc3: gadget: only unmap requests from DMA if mapped
  ...
2017-07-22 08:55:16 -07:00
Linus Torvalds bcb53e5769 Staging driver fixes for 4.13-rc2
Here are some small staging driver fixes for reported issues for
 4.13-rc2.
 
 Also in here is a new driver, the virtualbox DRM driver.  It's
 stand-alone and got acks from the DRM developers to go in through this
 tree.  It's a new thing, but it should be fine for this point in the rc
 cycle due to it being independent.
 
 All of this has been in linux-next for a while with no reported issues.
 
 Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Merge tag 'staging-4.13-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/staging

Pull staging driver fixes from Greg KH:
 "Here are some small staging driver fixes for reported issues for
  4.13-rc2.

  Also in here is a new driver, the virtualbox DRM driver. It's
  stand-alone and got acks from the DRM developers to go in through this
  tree. It's a new thing, but it should be fine for this point in the rc
  cycle due to it being independent.

  All of this has been in linux-next for a while with no reported
  issues"

* tag 'staging-4.13-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/staging:
  staging: rtl8188eu: add TL-WN722N v2 support
  staging: speakup: safely register and unregister ldisc
  staging: speakup: add functions to register and unregister ldisc
  staging: speakup: safely close tty
  staging: sm750fb: avoid conflicting vesafb
  staging: lustre: ko2iblnd: check copy_from_iter/copy_to_iter return code
  staging: vboxvideo: Add vboxvideo to drivers/staging
  staging: sm750fb: fixed a assignment typo
  staging: rtl8188eu: memory leak in rtw_free_cmd_obj()
  staging: vchiq_arm: fix error codes in probe
  staging: comedi: ni_mio_common: fix AO timer off-by-one regression
2017-07-22 08:53:24 -07:00
Randy Dunlap 82abbea734 MAINTAINERS: fix alphabetical ordering
Fix major alphabetic errors.  No attempt to fix items that all begin
with the same word (like ARM, BROADCOM, DRM, EDAC, FREESCALE, INTEL,
OMAP, PCI, SAMSUNG, TI, USB, etc.).

(diffstat +/- is different by one line because TI KEYSTONE MULTICORE
had 2 blank lines after it.)

Signed-off-by: Randy Dunlap <rdunlap@infradead.org>
Acked-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2017-07-21 18:59:11 -07:00
Linus Torvalds 505d5c1119 NFS client bugfixes for 4.13
Stable bugfixes:
 - Fix error reporting regression
 
 Bugfixes:
 - Fix setting filelayout ds address race
 - Fix subtle access bug when using ACLs
 - Fix setting mnt3_counts array size
 - Fix a couple of pNFS commit races
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Merge tag 'nfs-for-4.13-2' of git://git.linux-nfs.org/projects/anna/linux-nfs

Pull NFS client bugfixes from Anna Schumaker:
 "Stable bugfix:
   - Fix error reporting regression

  Bugfixes:
   - Fix setting filelayout ds address race
   - Fix subtle access bug when using ACLs
   - Fix setting mnt3_counts array size
   - Fix a couple of pNFS commit races"

* tag 'nfs-for-4.13-2' of git://git.linux-nfs.org/projects/anna/linux-nfs:
  NFS/filelayout: Fix racy setting of fl->dsaddr in filelayout_check_deviceid()
  NFS: Be more careful about mapping file permissions
  NFS: Store the raw NFS access mask in the inode's access cache
  NFSv3: Convert nfs3_proc_access() to use nfs_access_set_mask()
  NFS: Refactor NFS access to kernel access mask calculation
  net/sunrpc/xprt_sock: fix regression in connection error reporting.
  nfs: count correct array for mnt3_counts array size
  Revert commit 722f0b8911 ("pNFS: Don't send COMMITs to the DSes if...")
  pNFS/flexfiles: Handle expired layout segments in ff_layout_initiate_commit()
  NFS: Fix another COMMIT race in pNFS
  NFS: Fix a COMMIT race in pNFS
  mount: copy the port field into the cloned nfs_server structure.
  NFS: Don't run wake_up_bit() when nobody is waiting...
  nfs: add export operations
2017-07-21 16:26:01 -07:00
Linus Torvalds 99313414dd Merge branch 'overlayfs-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mszeredi/vfs
Pull overlayfs fixes from Miklos Szeredi:
 "This fixes a crash with SELinux and several other old and new bugs"

* 'overlayfs-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mszeredi/vfs:
  ovl: check for bad and whiteout index on lookup
  ovl: do not cleanup directory and whiteout index entries
  ovl: fix xattr get and set with selinux
  ovl: remove unneeded check for IS_ERR()
  ovl: fix origin verification of index dir
  ovl: mark parent impure on ovl_link()
  ovl: fix random return value on mount
2017-07-21 16:24:22 -07:00
Linus Torvalds 0151ef0085 Merge branch 'for-linus' of git://git.kernel.dk/linux-block
Pull block fixes from Jens Axboe:
 "A small set of fixes for -rc2 - two fixes for BFQ, documentation and
  code, and a removal of an unused variable in nbd. Outside of that, a
  small collection of fixes from the usual crew on the nvme side"

* 'for-linus' of git://git.kernel.dk/linux-block:
  nvmet: don't report 0-bytes in serial number
  nvmet: preserve controller serial number between reboots
  nvmet: Move serial number from controller to subsystem
  nvmet: prefix version configfs file with attr
  nvme-pci: Fix an error handling path in 'nvme_probe()'
  nvme-pci: Remove nvme_setup_prps BUG_ON
  nvme-pci: add another device ID with stripe quirk
  nvmet-fc: fix byte swapping in nvmet_fc_ls_create_association
  nvme: fix byte swapping in the streams code
  nbd: kill unused ret in recv_work
  bfq: dispatch request to prevent queue stalling after the request completion
  bfq: fix typos in comments about B-WF2Q+ algorithm
2017-07-21 16:20:05 -07:00
Linus Torvalds bb236dbeea Second set of -rc fixes for 4.13 cycle
- i40iw fixes
 - bnxt_re fixes
 - Dan Carpenter bugfixes across stack
 - 10 more random fixes, no more than 2 from any 1 person
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Merge tag 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dledford/rdma

Pull more rdma fixes from Doug Ledford:
 "As per my previous pull request, there were two drivers that each had
  a rather large number of legitimate fixes still to be sent.

  As it turned out, I also missed a reasonably large set of fixes from
  one person across the stack that are all important fixes. All in all,
  the bnxt_re, i40iw, and Dan Carpenter are 3/4 to 2/3rds of this pull
  request.

  There were some other random fixes that I didn't send in the last pull
  request that I added to this one. This catches the rdma stack up to
  the fixes from up to about the beginning of this week. Any more fixes
  I'll wait and batch up later in the -rc cycle. This will give us a
  good base to start with for basing a for-next branch on -rc2.

  Summary:

   - i40iw fixes

   - bnxt_re fixes

   - Dan Carpenter bugfixes across stack

   - ten more random fixes, no more than two from any one person"

* tag 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dledford/rdma: (37 commits)
  RDMA/core: Initialize port_num in qp_attr
  RDMA/uverbs: Fix the check for port number
  IB/cma: Fix reference count leak when no ipv4 addresses are set
  RDMA/iser: don't send an rkey if all data is written as immadiate-data
  rxe: fix broken receive queue draining
  RDMA/qedr: Prevent memory overrun in verbs' user responses
  iw_cxgb4: don't use WR keys/addrs for 0 byte reads
  IB/mlx4: Fix CM REQ retries in paravirt mode
  IB/rdmavt: Setting of QP timeout can overflow jiffies computation
  IB/core: Fix sparse warnings
  RDMA/bnxt_re: Fix the value reported for local ack delay
  RDMA/bnxt_re: Report MISSED_EVENTS in req_notify_cq
  RDMA/bnxt_re: Fix return value of poll routine
  RDMA/bnxt_re: Enable atomics only if host bios supports
  RDMA/bnxt_re: Specify RDMA component when allocating stats context
  RDMA/bnxt_re: Fixed the max_rd_atomic support for initiator and destination QP
  RDMA/bnxt_re: Report supported value to IB stack in query_device
  RDMA/bnxt_re: Do not free the ctx_tbl entry if delete GID fails
  RDMA/bnxt_re: Fix WQE Size posted to HW to prevent it from throwing error
  RDMA/bnxt_re: Free doorbell page index (DPI) during dealloc ucontext
  ...
2017-07-21 14:22:05 -07:00
Linus Torvalds 24a1635a41 imx, misc and amdkfd fixes
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Merge tag 'drm-fixes-for-v4.13-rc2' of git://people.freedesktop.org/~airlied/linux

Pull drm fixes from Dave Airlie:
 "A bunch of fixes for rc2: two imx regressions, vc4 fix, dma-buf fix,
  some displayport mst fixes, and an amdkfd fix.

  Nothing too crazy, I assume we just haven't see much rc1 testing yet"

* tag 'drm-fixes-for-v4.13-rc2' of git://people.freedesktop.org/~airlied/linux:
  drm/mst: Avoid processing partially received up/down message transactions
  drm/mst: Avoid dereferencing a NULL mstb in drm_dp_mst_handle_up_req()
  drm/mst: Fix error handling during MST sideband message reception
  drm/imx: parallel-display: Accept drm_of_find_panel_or_bridge failure
  drm/imx: fix typo in ipu_plane_formats[]
  drm/vc4: Fix VBLANK handling in crtc->enable() path
  dma-buf/fence: Avoid use of uninitialised timestamp
  drm/amdgpu: Remove unused field kgd2kfd_shared_resources.num_mec
  drm/radeon: Remove initialization of shared_resources.num_mec
  drm/amdkfd: Remove unused references to shared_resources.num_mec
  drm/amdgpu: Fix KFD oversubscription by tracking queues correctly
2017-07-21 14:16:42 -07:00
Linus Torvalds f79ec886f9 Three minor updates
- Use of the new GFP_RETRY_MAYFAIL to be more aggressive in allocating
    memory for the ring buffer without causing OOMs
 
  - Fix a memory leak in adding and removing instances
 
  - Add __rcu annotation to be able to debug RCU usage of function
    tracing a bit better.
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Merge tag 'trace-v4.13-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/rostedt/linux-trace

Pull tracing fixes from Steven Rostedt:
 "Three minor updates

   - Use the new GFP_RETRY_MAYFAIL to be more aggressive in allocating
     memory for the ring buffer without causing OOMs

   - Fix a memory leak in adding and removing instances

   - Add __rcu annotation to be able to debug RCU usage of function
     tracing a bit better"

* tag 'trace-v4.13-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/rostedt/linux-trace:
  trace: fix the errors caused by incompatible type of RCU variables
  tracing: Fix kmemleak in instance_rmdir
  tracing/ring_buffer: Try harder to allocate
2017-07-21 13:59:51 -07:00
Linus Torvalds b0a752818b KVM fixes for v4.13-rc2
A bunch of small fixes for x86.
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Merge tag 'for-linus' of git://git.kernel.org/pub/scm/virt/kvm/kvm

Pull KVM fixes from Radim Krčmář:
 "A bunch of small fixes for x86"

* tag 'for-linus' of git://git.kernel.org/pub/scm/virt/kvm/kvm:
  kvm: x86: hyperv: avoid livelock in oneshot SynIC timers
  KVM: VMX: Fix invalid guest state detection after task-switch emulation
  x86: add MULTIUSER dependency for KVM
  KVM: nVMX: Disallow VM-entry in MOV-SS shadow
  KVM: nVMX: track NMI blocking state separately for each VMCS
  KVM: x86: masking out upper bits
2017-07-21 13:58:10 -07:00