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Tejun Heo ded521217b blkcg, writeback: dead memcgs shouldn't contribute to writeback ownership arbitration 
[ Upstream commit 6631142229 ]

wbc_account_io() collects information on cgroup ownership of writeback
pages to determine which cgroup should own the inode.  Pages can stay
associated with dead memcgs but we want to avoid attributing IOs to
dead blkcgs as much as possible as the association is likely to be
stale.  However, currently, pages associated with dead memcgs
contribute to the accounting delaying and/or confusing the
arbitration.

Fix it by ignoring pages associated with dead memcgs.

Signed-off-by: Tejun Heo <tj@kernel.org>
Cc: Jan Kara <jack@suse.cz>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2019-07-26 09:12:36 +02:00
..
9p
Merge tag '9p-for-5.1' of git://github.com/martinetd/linux
2019-03-17 09:10:56 -07:00
adfs
adfs: use timespec64 for time conversion
2018-08-22 10:52:51 -07:00
affs
…
afs
afs: Fix uninitialised spinlock afs_volume::cb_break_lock
2019-07-21 09:01:56 +02:00
autofs
autofs: clear O_NONBLOCK on the pipe
2019-03-07 18:32:01 -08:00
befs
…
bfs
bfs: extra sanity checking and static inode bitmap
2019-01-04 13:13:47 -08:00
btrfs
btrfs: Ensure replaced device doesn't have pending chunk allocation
2019-07-10 09:52:31 +02:00
cachefiles
fscache, cachefiles: remove redundant variable 'cache'
2018-11-30 16:00:58 +00:00
ceph
ceph: flush dirty inodes before proceeding with remount
2019-05-25 18:16:36 +02:00
cifs
SMB3: retry on STATUS_INSUFFICIENT_RESOURCES instead of failing write
2019-06-25 11:34:55 +08:00
coda
…
configfs
configfs: Fix use-after-free when accessing sd->s_dentry
2019-06-22 08:09:11 +02:00
cramfs
Merge tag 'cramfs_fixes' of git://git.linaro.org/people/nicolas.pitre/linux
2018-10-30 12:46:25 -07:00
crypto
fscrypt: clean up some BUG_ON()s in block encryption/decryption
2019-07-26 09:12:27 +02:00
debugfs
debugfs: fix use-after-free on symlink traversal
2019-04-01 00:31:02 -04:00
devpts
fs/devpts: always delete dcache dentry-s in dput()
2019-01-24 13:38:30 -05:00
dlm
socket: Rename SO_RCVTIMEO/ SO_SNDTIMEO with _OLD suffixes
2019-02-03 11:17:31 -08:00
ecryptfs
crypto: clarify name of WEAK_KEY request flag
2019-01-25 18:41:52 +08:00
efivarfs
efivars: Call guid_parse() against guid_t type of variable
2018-07-22 14:13:44 +02:00
efs
…
exportfs
exportfs: do not read dentry after free
2018-11-23 09:08:17 -05:00
ext2
Merge tag 'fs_for_v5.1-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/jack/linux-fs
2019-03-07 09:01:33 -08:00
ext4
ext4: wait for outstanding dio during truncate in nojournal mode
2019-05-31 06:43:08 -07:00
f2fs
f2fs: fix to avoid accessing xattr across the boundary
2019-06-19 08:00:06 +02:00
fat
fs/fat/file.c: issue flush after the writeback of FAT
2019-06-15 11:52:50 +02:00
freevxfs
…
fscache
fscache: fix race between enablement and dropping of object
2018-11-30 15:57:31 +00:00
fuse
fuse: retrieve: cap requested size to negotiated max_write
2019-06-15 11:53:00 +02:00
gfs2
gfs2: Fix occasional glock use-after-free
2019-05-31 06:43:14 -07:00
hfs
hfs: do not free node before using
2018-11-30 14:56:14 -08:00
hfsplus
hfsplus: return file attributes on statx
2019-01-04 13:13:47 -08:00
hostfs
vfs: discard ATTR_ATTR_FLAG
2018-08-17 16:20:28 -07:00
hpfs
hpfs: fix spelling mistake "partion" -> "partition"
2019-03-12 09:58:03 -07:00
hugetlbfs
hugetlb: use same fault hash key for shared and private mappings
2019-05-22 07:39:50 +02:00
isofs
Update email address
2018-09-29 22:47:48 -04:00
jbd2
jbd2: fix potential double free
2019-05-22 07:39:56 +02:00
jffs2
jffs2: fix use-after-free on symlink traversal
2019-04-01 00:31:02 -04:00
jfs
jfs: remove redundant dquot_initialize() in jfs_evict_inode()
2018-09-20 09:28:49 -05:00
kernfs
kernfs: fix barrier usage in __kernfs_new_node()
2019-05-16 19:35:34 +02:00
lockd
Revert "lockd: Show pid of lockd for remote locks"
2019-06-09 09:16:16 +02:00
minix
…
nfs
NFS4: Only set creation opendata if O_CREAT
2019-07-14 08:09:46 +02:00
nfs_common
…
nfsd
nfsd: Fix overflow causing non-working mounts on 1 TB machines
2019-07-10 09:52:31 +02:00
nilfs2
XArray: Change xa_insert to return -EBUSY
2019-02-06 13:12:15 -05:00
nls
…
notify
fanotify: update connector fsid cache on add mark
2019-07-03 13:13:44 +02:00
ntfs
mm: convert totalram_pages and totalhigh_pages variables to atomic
2018-12-28 12:11:47 -08:00
ocfs2
ocfs2: fix error path kobject memory leak
2019-06-22 08:09:15 +02:00
omfs
…
openpromfs
fs/openpromfs: Use of_node_name_eq for node name comparisons
2018-11-18 13:35:19 -08:00
orangefs
Merge branch 'work.misc' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs
2019-03-12 13:27:20 -07:00
overlayfs
ovl: make i_ino consistent with st_ino in more cases
2019-06-25 11:34:54 +08:00
proc
fs/proc/array.c: allow reporting eip/esp for all coredumping threads
2019-07-03 13:13:35 +02:00
pstore
pstore/ram: Run without kernel crash dump region
2019-06-11 12:19:16 +02:00
qnx4
…
qnx6
…
quota
quota: fix a problem about transfer quota
2019-07-14 08:09:46 +02:00
ramfs
…
reiserfs
reiserfs: remove workaround code for GCC 3.x
2018-10-31 08:54:14 -07:00
romfs
…
squashfs
Squashfs: Compute expected length from inode size rather than block length
2018-08-02 09:34:02 -07:00
sysfs
Merge branch 'work.mount' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs
2019-03-16 10:31:02 -07:00
sysv
sysv: return 'err' instead of 0 in __sysv_write_inode
2018-11-10 08:02:40 -05:00
tracefs
tracefs: Annotate tracefs_ops with __ro_after_init
2018-07-31 11:32:44 -04:00
ubifs
ubifs: fix use-after-free on symlink traversal
2019-04-01 00:31:02 -04:00
udf
udf: Fix incorrect final NOT_ALLOCATED (hole) extent length
2019-07-14 08:09:46 +02:00
ufs
ufs: fix braino in ufs_get_inode_gid() for solaris UFS flavour
2019-05-02 02:24:50 -04:00
xfs
xfs: serialize unaligned dio writes against all other dio writes
2019-03-26 08:37:55 -07:00
aio.c
signal: remove the wrong signal_pending() check in restore_user_sigmask()
2019-07-10 09:52:20 +02:00
anon_inodes.c
anon_inode_getfile(): switch to alloc_file_pseudo()
2018-07-12 10:04:27 -04:00
attr.c
fs: Fix attr.c kernel-doc
2018-07-03 16:44:45 -04:00
bad_inode.c
get rid of 'opened' argument of ->atomic_open() - part 3
2018-07-12 10:04:20 -04:00
binfmt_aout.c
a.out: remove core dumping support
2019-03-05 10:00:35 -08:00
binfmt_elf_fdpic.c
…
binfmt_elf.c
fs/binfmt_elf.c: spread const a little
2019-03-07 18:32:01 -08:00
binfmt_em86.c
…
binfmt_flat.c
fs/binfmt_flat.c: make load_flat_shared_library() work
2019-07-03 13:13:36 +02:00
binfmt_misc.c
turn filp_clone_open() into inline wrapper for dentry_open()
2018-07-10 23:29:03 -04:00
binfmt_script.c
exec: load_script: Do not exec truncated interpreter path
2019-02-18 16:49:36 -08:00
block_dev.c
block: fix handling for BIO_NO_PAGE_REF
2019-05-01 08:38:47 -06:00
buffer.c
fs: fix guard_bio_eod to check for real EOD errors
2019-02-28 13:59:41 -07:00
char_dev.c
chardev: add additional check for minor range overlap
2019-05-31 06:43:42 -07:00
compat_binfmt_elf.c
y2038: globally rename compat_time to old_time32
2018-08-27 14:48:48 +02:00
compat_ioctl.c
Merge tag 'media/v4.20-1' of git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-media
2018-10-29 14:29:58 -07:00
compat.c
…
coredump.c
signal: Distinguish between kernel_siginfo and siginfo
2018-10-03 16:47:43 +02:00
d_path.c
…
dax.c
dax: Fix xarray entry association for mixed mappings
2019-07-10 09:52:29 +02:00
dcache.c
dcache: sort the freeing-without-RCU-delay mess for good.
2019-05-25 18:16:24 +02:00
dcookies.c
…
direct-io.c
block: allow bio_for_each_segment_all() to iterate over multi-page bvec
2019-02-15 08:40:11 -07:00
drop_caches.c
fs/drop_caches.c: avoid softlockups in drop_pagecache_sb()
2019-02-01 15:46:24 -08:00
eventfd.c
Revert changes to convert to ->poll_mask() and aio IOCB_CMD_POLL
2018-06-28 10:40:47 -07:00
eventpoll.c
signal: remove the wrong signal_pending() check in restore_user_sigmask()
2019-07-10 09:52:20 +02:00
exec.c
exec: increase BINPRM_BUF_SIZE to 256
2019-03-07 18:32:01 -08:00
fcntl.c
signal: Distinguish between kernel_siginfo and siginfo
2018-10-03 16:47:43 +02:00
fhandle.c
…
file_table.c
fs: add fget_many() and fput_many()
2019-02-28 08:24:23 -07:00
file.c
Merge tag 'io_uring-2019-03-06' of git://git.kernel.dk/linux-block
2019-03-08 14:48:40 -08:00
filesystems.c
vfs: Implement a filesystem superblock creation/configuration context
2019-02-28 03:29:26 -05:00
fs_context.c
vfs: Implement logging through fs_context
2019-02-28 03:29:37 -05:00
fs_parser.c
fs: fs_parser: fix printk format warning
2019-03-29 10:01:38 -07:00
fs_pin.c
…
fs_struct.c
…
fs_types.c
fs: common implementation of file type
2019-01-21 17:48:13 +01:00
fs-writeback.c
blkcg, writeback: dead memcgs shouldn't contribute to writeback ownership arbitration
2019-07-26 09:12:36 +02:00
inode.c
mm: fix page cache convergence regression
2019-07-03 13:13:39 +02:00
internal.h
acct_on(): don't mess with freeze protection
2019-05-31 06:43:13 -07:00
io_uring.c
signal: remove the wrong signal_pending() check in restore_user_sigmask()
2019-07-10 09:52:20 +02:00
ioctl.c
Remove 'type' argument from access_ok() function
2019-01-03 18:57:57 -08:00
iomap.c
block: add BIO_NO_PAGE_REF flag
2019-03-18 10:44:48 -06:00
Kconfig
fs: VALIDATE_FS_PARSER should default to n
2019-07-10 09:52:32 +02:00
Kconfig.binfmt
kconfig: move the "Executable file formats" menu to fs/Kconfig.binfmt
2018-08-02 08:06:55 +09:00
libfs.c
…
locks.c
locks: wake any locks blocked on request before deadlock check
2019-03-25 08:36:24 -04:00
Makefile
Merge branch 'work.mount' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs
2019-03-12 14:08:19 -07:00
mbcache.c
…
mount.h
saner handling of temporary namespaces
2019-01-30 17:44:07 -05:00
mpage.c
block: allow bio_for_each_segment_all() to iterate over multi-page bvec
2019-02-15 08:40:11 -07:00
namei.c
Merge branch 'work.mount' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs
2019-03-12 14:08:19 -07:00
namespace.c
fs/namespace: fix unprivileged mount propagation
2019-06-25 11:34:55 +08:00
no-block.c
…
nsfs.c
dcache: sort the freeing-without-RCU-delay mess for good.
2019-05-25 18:16:24 +02:00
open.c
fs: stream_open - opener for stream-like files so that read and write can run simultaneously without deadlock
2019-04-06 07:01:55 -10:00
pipe.c
Merge branch 'page-refs' (page ref overflow)
2019-04-14 15:09:40 -07:00
pnode.c
fs/namespace: fix unprivileged mount propagation
2019-06-25 11:34:55 +08:00
pnode.h
separate copying and locking mount tree on cross-userns copies
2019-01-30 17:14:50 -05:00
posix_acl.c
…
proc_namespace.c
…
read_write.c
fs: stream_open - opener for stream-like files so that read and write can run simultaneously without deadlock
2019-04-06 07:01:55 -10:00
readdir.c
Remove 'type' argument from access_ok() function
2019-01-03 18:57:57 -08:00
select.c
signal: remove the wrong signal_pending() check in restore_user_sigmask()
2019-07-10 09:52:20 +02:00
seq_file.c
fs/seq_file.c: simplify seq_file iteration code and interface
2018-08-17 16:20:28 -07:00
signalfd.c
signal: Distinguish between kernel_siginfo and siginfo
2018-10-03 16:47:43 +02:00
splice.c
Merge tag 'trace-v5.1-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/rostedt/linux-trace
2019-04-26 11:09:55 -07:00
stack.c
…
stat.c
fs: move generic stat response attr handling to vfs_getattr_nosec
2019-02-01 01:55:45 -05:00
statfs.c
vfs: add vfs_get_fsid() helper
2019-02-07 16:38:35 +01:00
super.c
[fix] get rid of checking for absent device name in vfs_get_tree()
2019-04-28 21:34:21 -04:00
sync.c
…
timerfd.c
y2038: syscalls: rename y2038 compat syscalls
2019-02-07 00:13:27 +01:00
userfaultfd.c
fs/userfaultfd.c: disable irqs for fault_pending and event locks
2019-07-10 09:52:29 +02:00
utimes.c
y2038: syscalls: rename y2038 compat syscalls
2019-02-07 00:13:27 +01:00
xattr.c
sysfs: Do not return POSIX ACL xattrs via listxattr
2018-09-18 07:30:48 -04:00