Hao Xu 3d4e4face9 io-wq: fix no lock protection of acct->nr_worker ... There is an acct->nr_worker visit without lock protection. Think about the case: two callers call io_wqe_wake_worker(), one is the original context and the other one is an io-worker(by calling io_wqe_enqueue(wqe, linked)), on two cpus paralelly, this may cause nr_worker to be larger than max_worker. Let's fix it by adding lock for it, and let's do nr_workers++ before create_io_worker. There may be a edge cause that the first caller fails to create an io-worker, but the second caller doesn't know it and then quit creating io-worker as well: say nr_worker = max_worker - 1 cpu 0 cpu 1 io_wqe_wake_worker() io_wqe_wake_worker() nr_worker < max_worker nr_worker++ create_io_worker() nr_worker == max_worker failed return return But the chance of this case is very slim. Fixes: 685fe7feed ("io-wq: eliminate the need for a manager thread") Signed-off-by: Hao Xu <haoxu@linux.alibaba.com> [axboe: fix unconditional create_io_worker() call] Signed-off-by: Jens Axboe <axboe@kernel.dk>		2021-08-06 08:27:54 -06:00
..
9p	9p for 5.13-rc1	2021-05-07 11:18:52 -07:00
adfs	mm: require ->set_page_dirty to be explicitly wired up	2021-06-29 10:53:48 -07:00
affs	mm: require ->set_page_dirty to be explicitly wired up	2021-06-29 10:53:48 -07:00
afs	netfslib fixes	2021-06-25 09:41:29 -07:00
autofs	autofs: should_expire() argument is guaranteed to be positive	2021-03-24 14:14:27 -04:00
befs	fs/befs: Delete obsolete TODO file	2021-03-30 16:54:49 -07:00
bfs	mm: require ->set_page_dirty to be explicitly wired up	2021-06-29 10:53:48 -07:00
btrfs	Merge branch 'work.iov_iter' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs	2021-07-03 11:30:04 -07:00
cachefiles	fscache, cachefiles: Add alternate API to use kiocb for read/write to cache	2021-04-23 10:14:32 +01:00
ceph	ceph: take reference to req->r_parent at point of assignment	2021-06-29 00:15:52 +02:00
cifs	cifs: update internal version number	2021-07-09 13:03:36 -05:00
coda	coda: fix reference counting in coda_file_mmap error path	2021-04-23 14:42:39 -07:00
configfs	configfs updates for Linux 5.13	2021-07-02 14:13:21 -07:00
cramfs	cramfs: use %pD instead of messing with file_dentry()->d_name	2021-01-05 23:02:47 -05:00
crypto	fscrypt: fix derivation of SipHash keys on big endian CPUs	2021-06-05 00:52:52 -07:00
debugfs	Linux 5.13-rc6	2021-06-14 09:07:45 +02:00
devpts
dlm	fs: dlm: invalid buffer access in lookup error	2021-06-11 12:44:47 -05:00
ecryptfs	mm: require ->set_page_dirty to be explicitly wired up	2021-06-29 10:53:48 -07:00
efivarfs	efivars: convert to fileattr	2021-04-12 15:04:29 +02:00
efs
erofs	erofs: clean up file headers & footers	2021-06-08 00:41:24 +08:00
exfat	Description for this pull request:	2021-07-06 11:06:04 -07:00
exportfs	exportfs: Add a function to return the raw output from fh_to_dentry()	2020-12-09 09:39:38 -05:00
ext2	fs: remove noop_set_page_dirty()	2021-06-29 10:53:48 -07:00
ext4	Ext4 regression and bug fixes for v5.14-rc1	2021-07-09 09:57:27 -07:00
f2fs	f2fs: drop dirty node pages when cp is in error status	2021-07-06 22:05:06 -07:00
fat	mm: require ->set_page_dirty to be explicitly wired up	2021-06-29 10:53:48 -07:00
freevxfs
fscache	fscache, cachefiles: Add alternate API to use kiocb for read/write to cache	2021-04-23 10:14:32 +01:00
fuse	fuse update for 5.14	2021-07-06 11:17:41 -07:00
gfs2	Various minor gfs2 cleanups and fixes	2021-06-29 20:23:08 -07:00
hfs	mm: require ->set_page_dirty to be explicitly wired up	2021-06-29 10:53:48 -07:00
hfsplus	hfsplus: report create_date to kstat.btime	2021-07-01 11:06:06 -07:00
hostfs	Merge branch 'work.misc' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs	2021-05-02 09:14:01 -07:00
hpfs	mm: require ->set_page_dirty to be explicitly wired up	2021-06-29 10:53:48 -07:00
hugetlbfs	Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/ebiederm/user-namespace	2021-06-28 20:39:26 -07:00
iomap	Merge branch 'work.iov_iter' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs	2021-07-03 11:30:04 -07:00
isofs	isofs: remove redundant continue statement	2021-06-17 17:11:42 +02:00
jbd2	ext4: inline jbd2_journal_[un]register_shrinker()	2021-07-08 08:37:31 -04:00
jffs2	This pull request contains changes for JFFS2, UBI and UBIFS	2021-05-04 18:08:40 -07:00
jfs	JFS fixes for 5.14	2021-07-02 14:25:17 -07:00
kernfs	Driver core changes for 5.14-rc1	2021-07-05 13:51:41 -07:00
lockd	lockd: Update the NLMv4 SHARE results encoder to use struct xdr_stream	2021-07-06 20:14:44 -04:00
minix	mm: require ->set_page_dirty to be explicitly wired up	2021-06-29 10:53:48 -07:00
netfs	netfs: fix test for whether we can skip read when writing beyond EOF	2021-06-21 21:24:07 +01:00
nfs	NFS client updates for Linux 5.14	2021-07-09 09:43:57 -07:00
nfs_common	nfs_common: fix doc warning	2021-07-06 20:14:41 -04:00
nfsd	block-5.14-2021-07-08	2021-07-09 12:05:33 -07:00
nilfs2	Merge branch 'akpm' (patches from Andrew)	2021-07-02 12:08:10 -07:00
nls
notify	fanotify: fix copy_event_to_user() fid error clean up	2021-06-14 12:16:37 +02:00
ntfs	Merge branch 'work.iov_iter' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs	2021-07-03 11:30:04 -07:00
ocfs2	In addition to bug fixes and cleanups, there are two new features for	2021-06-30 19:37:39 -07:00
omfs	mm: require ->set_page_dirty to be explicitly wired up	2021-06-29 10:53:48 -07:00
openpromfs	openpromfs: don't do unlock_new_inode() until the new inode is set up	2021-03-12 22:15:22 -05:00
orangefs	orangefs: fix orangefs df output.	2021-06-28 08:40:08 -04:00
overlayfs	overlayfs update for 5.13	2021-04-30 15:17:08 -07:00
proc	Merge branch 'work.namei' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs	2021-07-03 11:41:14 -07:00
pstore	for-5.14/drivers-2021-06-29	2021-06-30 12:21:16 -07:00
qnx4
qnx6
quota	quota: remove unnecessary oom message	2021-06-22 10:40:52 +02:00
ramfs	fs: move ramfs_aops to libfs	2021-06-29 10:53:48 -07:00
reiserfs	\n	2021-07-01 12:06:39 -07:00
romfs
squashfs	squashfs: add option to panic on errors	2021-06-29 10:53:46 -07:00
sysfs	sysfs: Support zapping of binary attr mmaps	2021-01-12 14:26:31 +01:00
sysv	mm: require ->set_page_dirty to be explicitly wired up	2021-06-29 10:53:48 -07:00
tracefs	tracing: Fix various typos in comments	2021-03-23 14:08:18 -04:00
ubifs	ubifs: Set/Clear I_LINKABLE under i_lock for whiteout inode	2021-06-22 09:21:39 +02:00
udf	\n	2021-07-01 12:06:39 -07:00
ufs	mm: require ->set_page_dirty to be explicitly wired up	2021-06-29 10:53:48 -07:00
unicode	.gitignore: prefix local generated files with a slash	2021-05-02 00:43:35 +09:00
vboxsf	vboxsf: don't allow to change the inode type	2021-03-12 22:15:00 -05:00
verity	fsverity: relax build time dependency on CRYPTO_SHA256	2021-04-22 17:31:32 +10:00
xfs	New code for 5.14:	2021-07-02 14:30:27 -07:00
zonefs	mm: move page dirtying prototypes from mm.h	2021-06-29 10:53:48 -07:00
aio.c	Revert "mremap: don't allow MREMAP_DONTUNMAP on special_mappings and aio"	2021-04-30 11:20:39 -07:00
anon_inodes.c	fs: anon_inodes: rephrase to appropriate kernel-doc	2021-01-15 12:17:25 -05:00
attr.c	ima: handle idmapped mounts	2021-01-24 14:27:20 +01:00
bad_inode.c	fs: make helpers idmap mount aware	2021-01-24 14:27:20 +01:00
binfmt_aout.c	binfmt: remove in-tree usage of MAP_EXECUTABLE	2021-06-29 10:53:50 -07:00
binfmt_elf_fdpic.c	Merge branch 'akpm' (patches from Andrew)	2021-06-29 17:29:11 -07:00
binfmt_elf.c	Merge branch 'akpm' (patches from Andrew)	2021-06-29 17:29:11 -07:00
binfmt_em86.c
binfmt_flat.c	binfmt: remove in-tree usage of MAP_EXECUTABLE	2021-06-29 10:53:50 -07:00
binfmt_misc.c	binfmt_misc: fix possible deadlock in bm_register_write	2021-03-13 11:27:30 -08:00
binfmt_script.c
block_dev.c	Char / Misc driver updates for 5.14-rc1	2021-07-05 13:42:16 -07:00
buffer.c	mm/writeback: move __set_page_dirty() to core mm	2021-06-29 10:53:48 -07:00
char_dev.c
compat_binfmt_elf.c	get rid of COMPAT_ELF_EXEC_PAGESIZE	2021-01-06 08:42:51 -05:00
coredump.c	Merge branch 'work.namei' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs	2021-07-03 11:41:14 -07:00
d_path.c	getcwd(2): clean up error handling	2021-05-18 20:15:58 -04:00
dax.c	dax: fix ENOMEM handling in grab_mapping_entry()	2021-06-29 10:53:47 -07:00
dcache.c	useful constants: struct qstr for ".."	2021-04-15 22:36:45 -04:00
direct-io.c	fs: direct-io: fix missing sdio->boundary	2021-04-09 14:54:23 -07:00
drop_caches.c
eventfd.c
eventpoll.c	fs/epoll: restore waking from ep_done_scan()	2021-05-06 19:24:13 -07:00
exec.c	Merge branch 'akpm' (patches from Andrew)	2021-07-02 12:08:10 -07:00
fcntl.c	idmapped-mounts-v5.12	2021-02-23 13:39:45 -08:00
fhandle.c	switch file_open_root() to struct path	2021-04-07 13:56:43 -04:00
file_table.c
file.c	Merge branch 'work.file' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs	2021-05-03 11:05:28 -07:00
filesystems.c
fs_context.c
fs_parser.c	vfs: fs_parser: clean up kernel-doc warnings	2021-04-30 11:20:35 -07:00
fs_pin.c
fs_struct.c
fs_types.c
fs-writeback.c	\n	2021-07-01 12:06:39 -07:00
fsopen.c
init.c	init: handle idmapped mounts	2021-01-24 14:27:19 +01:00
inode.c	mm: remove nrexceptional from inode: remove BUG_ON	2021-05-05 11:27:20 -07:00
internal.h	switch file_open_root() to struct path	2021-04-07 13:56:43 -04:00
io_uring.c	io_uring: fix poll requests leaking second poll entries	2021-07-28 07:24:57 -06:00
io-wq.c	io-wq: fix no lock protection of acct->nr_worker	2021-08-06 08:27:54 -06:00
io-wq.h	io_uring: move creds from io-wq work to io_kiocb	2021-06-18 09:22:02 -06:00
ioctl.c	vfs: add fileattr ops	2021-04-12 15:04:23 +02:00
Kconfig	mm: hugetlb: introduce CONFIG_HUGETLB_PAGE_FREE_VMEMMAP_DEFAULT_ON	2021-06-30 20:47:26 -07:00
Kconfig.binfmt	binfmt_flat: allow not offsetting data start	2021-04-19 09:56:37 +10:00
kernel_read_file.c	switch file_open_root() to struct path	2021-04-07 13:56:43 -04:00
libfs.c	fs: remove noop_set_page_dirty()	2021-06-29 10:53:48 -07:00
locks.c	Additional fixes and clean-ups for NFSD since tags/nfsd-5.13,	2021-05-05 13:44:19 -07:00
Makefile	netfs: Provide readahead and readpage netfs helpers	2021-04-23 10:14:32 +01:00
mbcache.c
mount.h	mount: make {lock,unlock}_mount_hash() static	2021-01-24 14:29:34 +01:00
mpage.c	block: rename BIO_MAX_PAGES to BIO_MAX_VECS	2021-03-11 07:47:48 -07:00
namei.c	Merge branch 'work.namei' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs	2021-07-03 11:41:14 -07:00
namespace.c	mount: Support "nosymfollow" in new mount api	2021-06-01 12:09:27 +02:00
no-block.c
nsfs.c
open.c	Merge branch 'work.namei' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs	2021-07-03 11:41:14 -07:00
pipe.c	fs: delete repeated words in comments	2021-02-24 13:38:26 -08:00
pnode.c
pnode.h	mount: fix mounting of detached mounts onto targets that reside on shared mounts	2021-03-08 15:18:43 +01:00
posix_acl.c	fs: make helpers idmap mount aware	2021-01-24 14:27:20 +01:00
proc_namespace.c	fs: introduce MOUNT_ATTR_IDMAP	2021-01-24 14:43:45 +01:00
read_write.c	teach sendfile(2) to handle send-to-pipe directly	2021-01-25 23:29:36 -05:00
readdir.c	readdir: make sure to verify directory entry for legacy interfaces too	2021-04-17 11:39:49 -07:00
remap_range.c	ioctl: handle idmapped mounts	2021-01-24 14:27:19 +01:00
select.c	kernel, fs: Introduce and use set_restart_fn() and arch_set_restart_data()	2021-03-16 22:13:10 +01:00
seq_file.c	seq_file: drop unused *_escape_mem_ascii()	2021-07-01 11:06:05 -07:00
signalfd.c	signalfd: Remove SIL_PERF_EVENT fields from signalfd_siginfo	2021-05-18 16:20:54 -05:00
splice.c	for-5.12/block-2021-02-17	2021-02-21 11:02:48 -08:00
stack.c
stat.c	fs: fix reporting supported extra file attributes for statx()	2021-04-17 23:03:50 -04:00
statfs.c	s390,alpha: switch to 64-bit ino_t	2021-02-13 17:17:53 +01:00
super.c	block: move bd_mutex to struct gendisk	2021-06-01 07:44:32 -06:00
sync.c
timerfd.c
userfaultfd.c	Merge branch 'akpm' (patches from Andrew)	2021-07-02 12:08:10 -07:00
utimes.c	utimes: handle idmapped mounts	2021-01-24 14:27:18 +01:00
xattr.c	xattr: fix kernel-doc for mnt_userns and vfs xattr helpers	2021-03-23 11:20:26 +01:00