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Filipe Manana a9b9477db2 Btrfs: fix use-after-free due to wrong order of destroying work queues 
Before we destroy all work queues (and wait for their tasks to complete)
we were destroying the work queues used for metadata I/O operations, which
can result in a use-after-free problem because most tasks from all work
queues do metadata I/O operations. For example, the tasks from the caching
workers work queue (fs_info->caching_workers), which is destroyed only
after the work queue used for metadata reads (fs_info->endio_meta_workers)
is destroyed, do metadata reads, which result in attempts to queue tasks
into the later work queue, triggering a use-after-free with a trace like
the following:

[23114.613543] general protection fault: 0000 [#1] PREEMPT SMP
[23114.614442] Modules linked in: dm_thin_pool dm_persistent_data dm_bio_prison dm_bufio libcrc32c btrfs xor raid6_pq dm_flakey dm_mod crc32c_generic
acpi_cpufreq tpm_tis tpm_tis_core tpm ppdev parport_pc parport i2c_piix4 processor sg evdev i2c_core psmouse pcspkr serio_raw button loop autofs4 ext4 crc16
jbd2 mbcache sr_mod cdrom sd_mod ata_generic virtio_scsi ata_piix virtio_pci libata virtio_ring virtio e1000 scsi_mod floppy [last unloaded: scsi_debug]
[23114.616932] CPU: 9 PID: 4537 Comm: kworker/u32:8 Not tainted 4.9.0-rc7-btrfs-next-36+ #1
[23114.616932] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.9.1-0-gb3ef39f-prebuilt.qemu-project.org 04/01/2014
[23114.616932] Workqueue: btrfs-cache btrfs_cache_helper [btrfs]
[23114.616932] task: ffff880221d45780 task.stack: ffffc9000bc50000
[23114.616932] RIP: 0010:[<ffffffffa037c1bf>]  [<ffffffffa037c1bf>] btrfs_queue_work+0x2c/0x190 [btrfs]
[23114.616932] RSP: 0018:ffff88023f443d60  EFLAGS: 00010246
[23114.616932] RAX: 0000000000000000 RBX: 6b6b6b6b6b6b6b6b RCX: 0000000000000102
[23114.616932] RDX: ffffffffa0419000 RSI: ffff88011df534f0 RDI: ffff880101f01c00
[23114.616932] RBP: ffff88023f443d80 R08: 00000000000f7000 R09: 000000000000ffff
[23114.616932] R10: ffff88023f443d48 R11: 0000000000001000 R12: ffff88011df534f0
[23114.616932] R13: ffff880135963868 R14: 0000000000001000 R15: 0000000000001000
[23114.616932] FS:  0000000000000000(0000) GS:ffff88023f440000(0000) knlGS:0000000000000000
[23114.616932] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[23114.616932] CR2: 00007f0fb9f8e520 CR3: 0000000001a0b000 CR4: 00000000000006e0
[23114.616932] Stack:
[23114.616932]  ffff880101f01c00 ffff88011df534f0 ffff880135963868 0000000000001000
[23114.616932]  ffff88023f443da0 ffffffffa03470af ffff880149b37200 ffff880135963868
[23114.616932]  ffff88023f443db8 ffffffff8125293c ffff880149b37200 ffff88023f443de0
[23114.616932] Call Trace:
[23114.616932]  <IRQ> [23114.616932]  [<ffffffffa03470af>] end_workqueue_bio+0xd5/0xda [btrfs]
[23114.616932]  [<ffffffff8125293c>] bio_endio+0x54/0x57
[23114.616932]  [<ffffffffa0377929>] btrfs_end_bio+0xf7/0x106 [btrfs]
[23114.616932]  [<ffffffff8125293c>] bio_endio+0x54/0x57
[23114.616932]  [<ffffffff8125955f>] blk_update_request+0x21a/0x30f
[23114.616932]  [<ffffffffa0022316>] scsi_end_request+0x31/0x182 [scsi_mod]
[23114.616932]  [<ffffffffa00235fc>] scsi_io_completion+0x1ce/0x4c8 [scsi_mod]
[23114.616932]  [<ffffffffa001ba9d>] scsi_finish_command+0x104/0x10d [scsi_mod]
[23114.616932]  [<ffffffffa002311f>] scsi_softirq_done+0x101/0x10a [scsi_mod]
[23114.616932]  [<ffffffff8125fbd9>] blk_done_softirq+0x82/0x8d
[23114.616932]  [<ffffffff814c8a4b>] __do_softirq+0x1ab/0x412
[23114.616932]  [<ffffffff8105b01d>] irq_exit+0x49/0x99
[23114.616932]  [<ffffffff81035135>] smp_call_function_single_interrupt+0x24/0x26
[23114.616932]  [<ffffffff814c7ec9>] call_function_single_interrupt+0x89/0x90
[23114.616932]  <EOI> [23114.616932]  [<ffffffffa0023262>] ? scsi_request_fn+0x13a/0x2a1 [scsi_mod]
[23114.616932]  [<ffffffff814c5966>] ? _raw_spin_unlock_irq+0x2c/0x4a
[23114.616932]  [<ffffffff814c596c>] ? _raw_spin_unlock_irq+0x32/0x4a
[23114.616932]  [<ffffffff814c5966>] ? _raw_spin_unlock_irq+0x2c/0x4a
[23114.616932]  [<ffffffffa0023262>] scsi_request_fn+0x13a/0x2a1 [scsi_mod]
[23114.616932]  [<ffffffff8125590e>] __blk_run_queue_uncond+0x22/0x2b
[23114.616932]  [<ffffffff81255930>] __blk_run_queue+0x19/0x1b
[23114.616932]  [<ffffffff8125ab01>] blk_queue_bio+0x268/0x282
[23114.616932]  [<ffffffff81258f44>] generic_make_request+0xbd/0x160
[23114.616932]  [<ffffffff812590e7>] submit_bio+0x100/0x11d
[23114.616932]  [<ffffffff81298603>] ? __this_cpu_preempt_check+0x13/0x15
[23114.616932]  [<ffffffff812a1805>] ? __percpu_counter_add+0x8e/0xa7
[23114.616932]  [<ffffffffa03bfd47>] btrfsic_submit_bio+0x1a/0x1d [btrfs]
[23114.616932]  [<ffffffffa0377db2>] btrfs_map_bio+0x1f4/0x26d [btrfs]
[23114.616932]  [<ffffffffa0348a33>] btree_submit_bio_hook+0x74/0xbf [btrfs]
[23114.616932]  [<ffffffffa03489bf>] ? btrfs_wq_submit_bio+0x160/0x160 [btrfs]
[23114.616932]  [<ffffffffa03697a9>] submit_one_bio+0x6b/0x89 [btrfs]
[23114.616932]  [<ffffffffa036f5be>] read_extent_buffer_pages+0x170/0x1ec [btrfs]
[23114.616932]  [<ffffffffa03471fa>] ? free_root_pointers+0x64/0x64 [btrfs]
[23114.616932]  [<ffffffffa0348adf>] readahead_tree_block+0x3f/0x4c [btrfs]
[23114.616932]  [<ffffffffa032e115>] read_block_for_search.isra.20+0x1ce/0x23d [btrfs]
[23114.616932]  [<ffffffffa032fab8>] btrfs_search_slot+0x65f/0x774 [btrfs]
[23114.616932]  [<ffffffffa036eff1>] ? free_extent_buffer+0x73/0x7e [btrfs]
[23114.616932]  [<ffffffffa0331ba4>] btrfs_next_old_leaf+0xa1/0x33c [btrfs]
[23114.616932]  [<ffffffffa0331e4f>] btrfs_next_leaf+0x10/0x12 [btrfs]
[23114.616932]  [<ffffffffa0336aa6>] caching_thread+0x22d/0x416 [btrfs]
[23114.616932]  [<ffffffffa037bce9>] btrfs_scrubparity_helper+0x187/0x3b6 [btrfs]
[23114.616932]  [<ffffffffa037c036>] btrfs_cache_helper+0xe/0x10 [btrfs]
[23114.616932]  [<ffffffff8106cf96>] process_one_work+0x273/0x4e4
[23114.616932]  [<ffffffff8106d6db>] worker_thread+0x1eb/0x2ca
[23114.616932]  [<ffffffff8106d4f0>] ? rescuer_thread+0x2b6/0x2b6
[23114.616932]  [<ffffffff81072a81>] kthread+0xd5/0xdd
[23114.616932]  [<ffffffff810729ac>] ? __kthread_unpark+0x5a/0x5a
[23114.616932]  [<ffffffff814c6257>] ret_from_fork+0x27/0x40
[23114.616932] Code: 1f 44 00 00 55 48 89 e5 41 56 41 55 41 54 53 49 89 f4 48 8b 46 70 a8 04 74 09 48 8b 5f 08 48 85 db 75 03 48 8b 1f 49 89 5c 24 68 <83> 7b
64 ff 74 04 f0 ff 43 58 49 83 7c 24 08 00 74 2c 4c 8d 6b
[23114.616932] RIP  [<ffffffffa037c1bf>] btrfs_queue_work+0x2c/0x190 [btrfs]
[23114.616932]  RSP <ffff88023f443d60>
[23114.689493] ---[ end trace 6e48b6bc707ca34b ]---
[23114.690166] Kernel panic - not syncing: Fatal exception in interrupt
[23114.691283] Kernel Offset: disabled
[23114.691918] ---[ end Kernel panic - not syncing: Fatal exception in interrupt

The following diagram shows the sequence of operations that lead to the
use-after-free problem from the above trace:

        CPU 1                               CPU 2                                     CPU 3

                                       caching_thread()
 close_ctree()
   btrfs_stop_all_workers()
     btrfs_destroy_workqueue(
      fs_info->endio_meta_workers)

                                         btrfs_search_slot()
                                          read_block_for_search()
                                           readahead_tree_block()
                                            read_extent_buffer_pages()
                                             submit_one_bio()
                                              btree_submit_bio_hook()
                                               btrfs_bio_wq_end_io()
                                                --> sets the bio's
                                                    bi_end_io callback
                                                    to end_workqueue_bio()
                                               --> bio is submitted
                                                                                  bio completes
                                                                                  and its bi_end_io callback
                                                                                  is invoked
                                                                                   --> end_workqueue_bio()
                                                                                       --> attempts to queue
                                                                                           a task on fs_info->endio_meta_workers

     btrfs_destroy_workqueue(
      fs_info->caching_workers)

So fix this by destroying the queues used for metadata I/O tasks only
after destroying all the other queues.

Signed-off-by: Filipe Manana <fdmanana@suse.com>
Reviewed-by: Liu Bo <bo.li.liu@oracle.com>
2017-02-24 00:38:56 +00:00
..
9p Replace <asm/uaccess.h> with <linux/uaccess.h> globally 2016-12-24 11:46:01 -08:00
adfs Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs 2016-10-10 20:16:43 -07:00
affs vfs: remove ".readlink = generic_readlink" assignments 2016-12-09 16:45:04 +01:00
afs Replace <asm/uaccess.h> with <linux/uaccess.h> globally 2016-12-24 11:46:01 -08:00
autofs4 Merge uncontroversial parts of branch 'readlink' of git://git.kernel.org/pub/scm/linux/kernel/git/mszeredi/vfs 2016-12-17 19:16:12 -08:00
befs befs: add NFS export support 2016-12-22 11:25:24 +00:00
bfs Replace <asm/uaccess.h> with <linux/uaccess.h> globally 2016-12-24 11:46:01 -08:00
btrfs Btrfs: fix use-after-free due to wrong order of destroying work queues 2017-02-24 00:38:56 +00:00
cachefiles Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs 2016-10-10 20:16:43 -07:00
ceph ceph: fix bad endianness handling in parse_reply_info_extra 2017-01-18 17:58:45 +01:00
cifs cifs: initialize file_info_lock 2017-01-14 14:58:29 -06:00
coda vfs: remove ".readlink = generic_readlink" assignments 2016-12-09 16:45:04 +01:00
configfs Replace <asm/uaccess.h> with <linux/uaccess.h> globally 2016-12-24 11:46:01 -08:00
cramfs
crypto fscrypt: fix renaming and linking special files 2016-12-31 00:47:05 -05:00
debugfs Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs 2016-10-10 20:16:43 -07:00
devpts Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs 2016-10-10 20:16:43 -07:00
dlm ktime: Get rid of ktime_equal() 2016-12-25 17:21:23 +01:00
ecryptfs vfs: remove ".readlink = generic_readlink" assignments 2016-12-09 16:45:04 +01:00
efivarfs Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs 2016-10-10 20:16:43 -07:00
efs Replace <asm/uaccess.h> with <linux/uaccess.h> globally 2016-12-24 11:46:01 -08:00
exofs exofs: don't mess with simple_write_{begin,end} 2016-12-10 14:25:19 -05:00
exportfs exportfs: be careful to only return expected errors. 2016-10-06 09:07:44 -04:00
ext2 dax: fix build warnings with FS_DAX and !FS_IOMAP 2017-01-24 16:26:14 -08:00
ext4 dax: fix build warnings with FS_DAX and !FS_IOMAP 2017-01-24 16:26:14 -08:00
f2fs block: Rename blk_queue_zone_size and bdev_zone_size 2017-01-12 07:58:32 -07:00
fat Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs 2016-10-10 20:16:43 -07:00
freevxfs
fscache fscache: Fix dead object requeue 2017-01-31 13:23:09 -05:00
fuse fuse: fix time_to_jiffies nsec sanity check 2017-01-13 17:20:47 +01:00
gfs2 ktime: Cleanup ktime_set() usage 2016-12-25 17:21:22 +01:00
hfs Replace <asm/uaccess.h> with <linux/uaccess.h> globally 2016-12-24 11:46:01 -08:00
hfsplus Replace <asm/uaccess.h> with <linux/uaccess.h> globally 2016-12-24 11:46:01 -08:00
hostfs vfs: remove ".readlink = generic_readlink" assignments 2016-12-09 16:45:04 +01:00
hpfs Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs 2016-10-10 20:16:43 -07:00
hugetlbfs Replace <asm/uaccess.h> with <linux/uaccess.h> globally 2016-12-24 11:46:01 -08:00
isofs Merge branch 'for-4.10/block' of git://git.kernel.dk/linux-block 2016-12-13 10:19:16 -08:00
jbd2 Replace <asm/uaccess.h> with <linux/uaccess.h> globally 2016-12-24 11:46:01 -08:00
jffs2 vfs: remove ".readlink = generic_readlink" assignments 2016-12-09 16:45:04 +01:00
jfs Replace <asm/uaccess.h> with <linux/uaccess.h> globally 2016-12-24 11:46:01 -08:00
kernfs Merge uncontroversial parts of branch 'readlink' of git://git.kernel.org/pub/scm/linux/kernel/git/mszeredi/vfs 2016-12-17 19:16:12 -08:00
lockd netns: make struct pernet_operations::id unsigned int 2016-11-18 10:59:15 -05:00
minix vfs: remove ".readlink = generic_readlink" assignments 2016-12-09 16:45:04 +01:00
ncpfs Replace <asm/uaccess.h> with <linux/uaccess.h> globally 2016-12-24 11:46:01 -08:00
nfs pNFS: Fix a reference leak in _pnfs_return_layout 2017-01-26 15:50:41 -05:00
nfs_common netns: make struct pernet_operations::id unsigned int 2016-11-18 10:59:15 -05:00
nfsd nfsd: Revert "nfsd: special case truncates some more" 2017-02-09 20:49:20 -05:00
nilfs2 Merge uncontroversial parts of branch 'readlink' of git://git.kernel.org/pub/scm/linux/kernel/git/mszeredi/vfs 2016-12-17 19:16:12 -08:00
nls
notify Merge branch 'stable-4.10' of git://git.infradead.org/users/pcmoore/audit 2017-01-05 23:06:06 -08:00
ntfs Replace <asm/uaccess.h> with <linux/uaccess.h> globally 2016-12-24 11:46:01 -08:00
ocfs2 ocfs2: fix crash caused by stale lvb with fsdlm plugin 2017-01-10 18:31:54 -08:00
omfs Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs 2016-10-10 20:16:43 -07:00
openpromfs Replace <asm/uaccess.h> with <linux/uaccess.h> globally 2016-12-24 11:46:01 -08:00
orangefs Merge uncontroversial parts of branch 'readlink' of git://git.kernel.org/pub/scm/linux/kernel/git/mszeredi/vfs 2016-12-17 19:16:12 -08:00
overlayfs ovl: fix possible use after free on redirect dir lookup 2017-01-18 15:19:54 +01:00
proc mm: fix KPF_SWAPCACHE in /proc/kpageflags 2017-02-07 12:08:32 -08:00
pstore pstore: don't OOPS when there are no ftrace zones 2017-02-09 11:49:49 -08:00
qnx4
qnx6
quota Merge branch 'for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jack/linux-fs 2016-12-19 08:23:53 -08:00
ramfs Replace <asm/uaccess.h> with <linux/uaccess.h> globally 2016-12-24 11:46:01 -08:00
reiserfs Merge uncontroversial parts of branch 'readlink' of git://git.kernel.org/pub/scm/linux/kernel/git/mszeredi/vfs 2016-12-17 19:16:12 -08:00
romfs romfs: use different way to generate fsid for BLOCK or MTD 2017-01-24 16:26:14 -08:00
squashfs Merge uncontroversial parts of branch 'readlink' of git://git.kernel.org/pub/scm/linux/kernel/git/mszeredi/vfs 2016-12-17 19:16:12 -08:00
sysfs Merge branch 'for-4.9' of git://git.kernel.org/pub/scm/linux/kernel/git/tj/cgroup 2016-10-14 12:18:50 -07:00
sysv vfs: remove ".readlink = generic_readlink" assignments 2016-12-09 16:45:04 +01:00
tracefs
ubifs ubifs: Fix journal replay wrt. xattr nodes 2017-01-17 14:35:58 +01:00
udf block,fs: untangle fs.h and blk_types.h 2016-11-01 09:43:26 -06:00
ufs Replace <asm/uaccess.h> with <linux/uaccess.h> globally 2016-12-24 11:46:01 -08:00
xfs xfs: prevent quotacheck from overloading inode lru 2017-01-27 09:32:30 -08:00
aio.c aio: fix lock dep warning 2017-01-14 19:31:40 -05:00
anon_inodes.c Replace <asm/uaccess.h> with <linux/uaccess.h> globally 2016-12-24 11:46:01 -08:00
attr.c Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs 2016-10-10 20:16:43 -07:00
bad_inode.c bad_inode: add missing i_op initializers 2016-12-09 11:57:43 +01:00
binfmt_aout.c Replace <asm/uaccess.h> with <linux/uaccess.h> globally 2016-12-24 11:46:01 -08:00
binfmt_elf_fdpic.c Replace <asm/uaccess.h> with <linux/uaccess.h> globally 2016-12-24 11:46:01 -08:00
binfmt_elf.c coredump: Ensure proper size of sparse core files 2017-01-14 19:32:40 -05:00
binfmt_em86.c
binfmt_flat.c
binfmt_misc.c
binfmt_script.c
block_dev.c block: fix use after free in __blkdev_direct_IO 2017-01-24 07:55:53 -07:00
buffer.c clean_bdev_aliases: Prevent cleaning blocks that are not in block range 2017-01-02 09:35:14 -07:00
char_dev.c
compat_binfmt_elf.c
compat_ioctl.c Replace <asm/uaccess.h> with <linux/uaccess.h> globally 2016-12-24 11:46:01 -08:00
compat.c Replace <asm/uaccess.h> with <linux/uaccess.h> globally 2016-12-24 11:46:01 -08:00
coredump.c coredump: Ensure proper size of sparse core files 2017-01-14 19:32:40 -05:00
dax.c fs: break out of iomap_file_buffered_write on fatal signals 2017-02-03 14:13:19 -08:00
dcache.c mnt: Protect the mountpoint hashtable with mount_lock 2017-01-10 13:34:43 +13:00
dcookies.c Replace <asm/uaccess.h> with <linux/uaccess.h> globally 2016-12-24 11:46:01 -08:00
direct-io.c do_direct_IO: Use inode->i_blkbits to compute block count to be cleaned 2017-01-10 13:29:54 -07:00
drop_caches.c
eventfd.c
eventpoll.c Replace <asm/uaccess.h> with <linux/uaccess.h> globally 2016-12-24 11:46:01 -08:00
exec.c Replace <asm/uaccess.h> with <linux/uaccess.h> globally 2016-12-24 11:46:01 -08:00
fcntl.c Replace <asm/uaccess.h> with <linux/uaccess.h> globally 2016-12-24 11:46:01 -08:00
fhandle.c Replace <asm/uaccess.h> with <linux/uaccess.h> globally 2016-12-24 11:46:01 -08:00
file_table.c constify alloc_file() 2016-12-05 19:01:16 -05:00
file.c
filesystems.c Replace <asm/uaccess.h> with <linux/uaccess.h> globally 2016-12-24 11:46:01 -08:00
fs_pin.c
fs_struct.c
fs-writeback.c fs/fs-writeback.c: remove redundant if check 2016-12-12 18:55:08 -08:00
inode.c Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs 2016-10-10 20:16:43 -07:00
internal.h Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs 2016-12-17 18:44:00 -08:00
ioctl.c vfs: call vfs_clone_file_range() under freeze protection 2016-12-16 11:02:54 +01:00
iomap.c fs: break out of iomap_file_buffered_write on fatal signals 2017-02-03 14:13:19 -08:00
Kconfig dax: fix build warnings with FS_DAX and !FS_IOMAP 2017-01-24 16:26:14 -08:00
Kconfig.binfmt docs: fix locations of several documents that got moved 2016-10-24 08:12:35 -02:00
libfs.c libfs: Modify mount_pseudo_xattr to be clear it is not a userspace mount 2017-01-10 13:34:55 +13:00
locks.c Replace <asm/uaccess.h> with <linux/uaccess.h> globally 2016-12-24 11:46:01 -08:00
Makefile logfs: remove from tree 2016-12-14 23:48:11 -05:00
mbcache.c mbcache: document that "find" functions only return reusable entries 2016-12-03 15:55:01 -05:00
mount.h vfs: add path_is_mountpoint() helper 2016-12-03 20:51:35 -05:00
mpage.c fs: Add helper to clean bdev aliases under a bh and use it 2016-11-04 14:34:47 -06:00
namei.c Replace <asm/uaccess.h> with <linux/uaccess.h> globally 2016-12-24 11:46:01 -08:00
namespace.c mnt: Protect the mountpoint hashtable with mount_lock 2017-01-10 13:34:43 +13:00
no-block.c
nsfs.c net: add an ioctl to get a socket network namespace 2016-10-31 10:56:36 -04:00
open.c Replace <asm/uaccess.h> with <linux/uaccess.h> globally 2016-12-24 11:46:01 -08:00
pipe.c Replace <asm/uaccess.h> with <linux/uaccess.h> globally 2016-12-24 11:46:01 -08:00
pnode.c reorganize do_make_slave() 2016-12-16 16:30:49 -05:00
pnode.h
posix_acl.c tmpfs: clear S_ISGID when setting posix ACLs 2017-01-10 01:29:48 -05:00
proc_namespace.c
read_write.c Replace <asm/uaccess.h> with <linux/uaccess.h> globally 2016-12-24 11:46:01 -08:00
readdir.c Replace <asm/uaccess.h> with <linux/uaccess.h> globally 2016-12-24 11:46:01 -08:00
select.c Replace <asm/uaccess.h> with <linux/uaccess.h> globally 2016-12-24 11:46:01 -08:00
seq_file.c Replace <asm/uaccess.h> with <linux/uaccess.h> globally 2016-12-24 11:46:01 -08:00
signalfd.c
splice.c splice: reinstate SIGPIPE/EPIPE handling 2016-12-21 10:59:34 -08:00
stack.c
stat.c Replace <asm/uaccess.h> with <linux/uaccess.h> globally 2016-12-24 11:46:01 -08:00
statfs.c vfs: misc struct path constification 2016-12-05 19:03:49 -05:00
super.c quota: Remove dqonoff_mutex 2016-11-30 08:38:07 +01:00
sync.c
timerfd.c ktime: Cleanup ktime_set() usage 2016-12-25 17:21:22 +01:00
userfaultfd.c userfaultfd: fix SIGBUS resulting from false rwsem wakeups 2017-01-24 16:26:14 -08:00
utimes.c Replace <asm/uaccess.h> with <linux/uaccess.h> globally 2016-12-24 11:46:01 -08:00
xattr.c Replace <asm/uaccess.h> with <linux/uaccess.h> globally 2016-12-24 11:46:01 -08:00