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David Howells 61b4c050ad fscache: Fix hanging wait on page discarded by writeback 
[ Upstream commit 2c98425720233ae3e135add0c7e869b32913502f ]

If the fscache asynchronous write operation elects to discard a page that's
pending storage to the cache because the page would be over the store limit
then it needs to wake the page as someone may be waiting on completion of
the write.

The problem is that the store limit may be updated by a different
asynchronous operation - and so may miss the write - and that the store
limit may not even get updated until later by the netfs.

Fix the kernel hang by making fscache_write_op() mark as written any pages
that are over the limit.

Signed-off-by: David Howells <dhowells@redhat.com>
Signed-off-by: Sasha Levin <alexander.levin@microsoft.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2018-05-30 07:49:08 +02:00
..
9p
fs/9p: Compare qid.path in v9fs_test_inode
2017-11-30 08:37:22 +00:00
adfs
…
affs
affs_lookup(): close a race with affs_remove_link()
2018-05-30 07:48:51 +02:00
afs
afs: Fix afs_kill_pages()
2017-12-20 10:04:56 +01:00
autofs4
autofs: mount point create should honour passed in mode
2018-04-24 09:32:11 +02:00
befs
…
bfs
…
btrfs
btrfs: Fix possible softlock on single core machines
2018-05-30 07:49:08 +02:00
cachefiles
FS-Cache: Add missing initialization of ret in cachefiles_write_page()
2015-11-16 20:38:43 -05:00
ceph
ceph: drop negative child dentries before try pruning inode's alias
2017-12-20 10:04:52 +01:00
cifs
cifs: silence compiler warnings showing up with gcc-8.0.0
2018-05-30 07:48:56 +02:00
coda
coda: fix 'kernel memory exposure attempt' in fsync
2017-11-24 08:32:25 +01:00
configfs
configfs: Fix race between create_link and configfs_rmdir
2017-06-26 07:13:08 +02:00
cramfs
…
debugfs
dentry name snapshots
2017-08-06 19:19:42 -07:00
devpts
devpts: clean up interface to pty drivers
2016-08-16 09:30:49 +02:00
dlm
dlm: avoid double-free on error path in dlm_device_{register,unregister}
2017-09-13 14:09:45 -07:00
ecryptfs
do d_instantiate/unlock_new_inode combinations safely
2018-05-30 07:48:52 +02:00
efivarfs
efi: Make efivarfs entries immutable by default
2016-03-03 15:07:09 -08:00
efs
…
exofs
osd fs: __r4w_get_page rely on PageUptodate for uptodate
2015-12-12 10:15:34 -08:00
exportfs
…
ext2
do d_instantiate/unlock_new_inode combinations safely
2018-05-30 07:48:52 +02:00
ext4
do d_instantiate/unlock_new_inode combinations safely
2018-05-30 07:48:52 +02:00
f2fs
do d_instantiate/unlock_new_inode combinations safely
2018-05-30 07:48:52 +02:00
fat
fat: fix using uninitialized fields of fat_inode/fsinfo_inode
2017-03-15 09:57:15 +08:00
freevxfs
…
fscache
fscache: Fix hanging wait on page discarded by writeback
2018-05-30 07:49:08 +02:00
fuse
fuse: fix READDIRPLUS skipping an entry
2017-11-02 09:40:49 +01:00
gfs2
GFS2: Take inode off order_write list when setting jdata flag
2017-12-20 10:04:59 +01:00
hfs
…
hfsplus
hfsplus: stop workqueue when fill_super() failed
2018-05-26 08:49:01 +02:00
hostfs
hostfs: Freeing an ERR_PTR in hostfs_fill_sb_common()
2016-09-30 10:18:39 +02:00
hpfs
hpfs: implement the show_options method
2016-06-01 12:15:54 -07:00
hugetlbfs
mm: larger stack guard gap, between vmas
2017-06-26 07:13:11 +02:00
isofs
isofs: fix timestamps beyond 2027
2017-11-30 08:37:20 +00:00
jbd2
ext4: set h_journal if there is a failure starting a reserved handle
2018-05-02 07:53:38 -07:00
jffs2
jffs2: Fix use-after-free bug in jffs2_iget()'s error handling path
2018-05-30 07:48:54 +02:00
jfs
do d_instantiate/unlock_new_inode combinations safely
2018-05-30 07:48:52 +02:00
kernfs
kernfs: fix regression in kernfs_fop_write caused by wrong type
2018-02-16 20:09:42 +01:00
lockd
lockd: lost rollback of set_grace_period() in lockd_down_net()
2018-05-26 08:48:50 +02:00
logfs
mm, fs: introduce mapping_gfp_constraint()
2015-11-06 17:50:42 -08:00
minix
…
ncpfs
staging: ncpfs: memory corruption in ncp_read_kernel()
2018-03-28 18:40:15 +02:00
nfs
nfs: Do not convert nfs_idmap_cache_timeout to jiffies
2018-05-30 07:48:53 +02:00
nfs_common
lockd: fix "list_add double add" caused by legacy signal interface
2018-02-03 17:04:28 +01:00
nfsd
nfsd4: permit layoutget of executable-only files
2018-03-24 10:58:48 +01:00
nilfs2
do d_instantiate/unlock_new_inode combinations safely
2018-05-30 07:48:52 +02:00
nls
…
notify
fanotify: fix logic of events on child
2018-04-24 09:32:11 +02:00
ntfs
mm, fs: introduce mapping_gfp_constraint()
2015-11-06 17:50:42 -08:00
ocfs2
ocfs2/dlm: don't handle migrate lockres if already in shutdown
2018-05-30 07:49:08 +02:00
omfs
…
openpromfs
…
overlayfs
ovl: filter trusted xattr for non-admin
2018-04-13 19:50:14 +02:00
proc
fs/proc/proc_sysctl.c: fix potential page fault while unregistering sysctl table
2018-05-30 07:49:07 +02:00
pstore
pstore: Use dynamic spinlock initializer
2017-08-06 19:19:43 -07:00
qnx4
…
qnx6
…
quota
quota: Check for register_shrinker() failure.
2018-02-03 17:04:28 +01:00
ramfs
…
reiserfs
do d_instantiate/unlock_new_inode combinations safely
2018-05-30 07:48:52 +02:00
romfs
romfs: use different way to generate fsid for BLOCK or MTD
2017-06-17 06:39:38 +02:00
squashfs
squashfs: xattr simplifications
2015-11-13 20:34:33 -05:00
sysfs
sysfs: be careful of error returns from ops->show()
2017-04-12 12:38:33 +02:00
sysv
fix sysvfs symlinks
2015-11-23 21:11:08 -05:00
tracefs
tracefs: Fix refcount imbalance in start_creating()
2015-11-04 22:13:45 -05:00
ubifs
ubifs: Check ubifs_wbuf_sync() return code
2018-04-24 09:32:05 +02:00
udf
do d_instantiate/unlock_new_inode combinations safely
2018-05-30 07:48:52 +02:00
ufs
do d_instantiate/unlock_new_inode combinations safely
2018-05-30 07:48:52 +02:00
xfs
Force log to disk before reading the AGF during a fstrim
2018-05-30 07:49:07 +02:00
aio.c
aio: fix io_destroy(2) vs. lookup_ioctx() race
2018-05-30 07:48:51 +02:00
anon_inodes.c
…
attr.c
vfs: move permission checking into notify_change() for utimes(NULL)
2016-10-22 12:26:56 +02:00
bad_inode.c
…
binfmt_aout.c
…
binfmt_elf_fdpic.c
libnvdimm for 4.4:
2015-11-10 12:07:22 -08:00
binfmt_elf.c
binfmt_elf: use ELF_ET_DYN_BASE only for PIE
2017-07-21 07:44:57 +02:00
binfmt_em86.c
…
binfmt_flat.c
…
binfmt_misc.c
…
binfmt_script.c
…
block_dev.c
fs/block_dev: always invalidate cleancache in invalidate_bdev()
2017-05-20 14:27:01 +02:00
buffer.c
fs: add i_blocksize()
2017-06-14 13:16:24 +02:00
char_dev.c
…
compat_binfmt_elf.c
binfmt_elf: compat: avoid unused function warning
2018-02-25 11:03:51 +01:00
compat_ioctl.c
fs: compat: Remove warning from COMPATIBLE_IOCTL
2018-04-08 11:51:57 +02:00
compat.c
…
coredump.c
coredump: Ensure proper size of sparse core files
2017-07-05 14:37:20 +02:00
dax.c
dax: disable pmd mappings
2015-11-16 23:54:45 -08:00
dcache.c
do d_instantiate/unlock_new_inode combinations safely
2018-05-30 07:48:52 +02:00
dcookies.c
…
direct-io.c
direct-io: Prevent NULL pointer access in submit_page_section
2017-10-18 09:20:42 +02:00
drop_caches.c
…
eventfd.c
…
eventpoll.c
epoll: fix race between ep_poll_callback(POLLFREE) and ep_free()/ep_remove()
2017-09-07 08:34:10 +02:00
exec.c
exec: Limit arg stack to at most 75% of _STK_LIM
2017-07-21 07:44:57 +02:00
fcntl.c
fs/fcntl: f_setown, avoid undefined behaviour
2018-01-31 12:06:11 +01:00
fhandle.c
fs/coredump: prevent fsuid=0 dumps into user-controlled directories
2016-04-12 09:08:58 -07:00
file_table.c
…
file.c
vfs: clear remainder of 'full_fds_bits' in dup_fd()
2015-11-05 23:05:32 -08:00
filesystems.c
…
fs_pin.c
…
fs_struct.c
…
fs-writeback.c
bdi: Fix oops in wb_workfn()
2018-05-16 10:06:51 +02:00
inode.c
don't put symlink bodies in pagecache into highmem
2018-02-16 20:09:38 +01:00
internal.h
…
ioctl.c
…
Kconfig
dax: disable pmd mappings
2015-11-16 23:54:45 -08:00
Kconfig.binfmt
…
libfs.c
…
locks.c
locks: don't check for race with close when setting OFD lock
2018-01-17 09:35:27 +01:00
Makefile
…
mbcache.c
…
mount.h
mnt: In propgate_umount handle visiting mounts in any order
2017-07-21 07:44:57 +02:00
mpage.c
fs: add i_blocksize()
2017-06-14 13:16:24 +02:00
namei.c
getname_kernel() needs to make sure that ->name != ->iname in long case
2018-04-24 09:32:04 +02:00
namespace.c
Don't leak MNT_INTERNAL away from internal mounts
2018-04-24 09:32:11 +02:00
no-block.c
…
nsfs.c
nsfs: mark dentry with DCACHE_RCUACCESS
2018-02-16 20:09:43 +01:00
open.c
fs: completely ignore unknown open flags
2017-07-15 11:57:44 +02:00
pipe.c
pipe: cap initial pipe capacity according to pipe-max-size limit
2018-05-26 08:48:51 +02:00
pnode.c
mnt: Make propagate_umount less slow for overlapping mount propagation trees
2017-07-21 07:44:58 +02:00
pnode.h
mnt: Add a per mount namespace limit on the number of mounts
2017-04-30 05:49:28 +02:00
posix_acl.c
tmpfs: clear S_ISGID when setting posix ACLs
2017-01-26 08:23:47 +01:00
proc_namespace.c
vfs: show_vfsstat: do not ignore errors from show_devname method
2016-04-12 09:08:55 -07:00
read_write.c
vfs: Return -ENXIO for negative SEEK_HOLE / SEEK_DATA offsets
2017-10-05 09:41:45 +02:00
readdir.c
…
select.c
fs/select: add vmalloc fallback for select(2)
2018-01-31 12:06:09 +01:00
seq_file.c
Make file credentials available to the seqfile interfaces
2017-08-06 19:19:42 -07:00
signalfd.c
…
splice.c
vfs: fix uninitialized flags in splice_to_pipe()
2017-02-23 17:43:09 +01:00
stack.c
…
stat.c
ufs: restore maintaining ->i_blocks
2017-06-14 13:16:24 +02:00
statfs.c
…
super.c
sget(): handle failures of register_shrinker()
2018-03-03 10:19:41 +01:00
sync.c
fs/sync.c: make sync_file_range(2) use WB_SYNC_NONE writeback
2015-11-06 17:50:42 -08:00
timerfd.c
timerfd: Protect the might cancel mechanism proper
2017-05-08 07:46:01 +02:00
userfaultfd.c
userfaultfd: shmem: __do_fault requires VM_FAULT_NOPAGE
2017-12-20 10:04:53 +01:00
utimes.c
vfs: move permission checking into notify_change() for utimes(NULL)
2016-10-22 12:26:56 +02:00
xattr.c
lsm: fix smack_inode_removexattr and xattr_getsecurity memleak
2017-10-12 11:27:32 +02:00