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Pavel Begunkov 51ebf1b6a0 io_uring: avoid io-wq -EAGAIN looping for !IOPOLL 
[ Upstream commit e0deb6a025ae8c850dc8685be39fb27b06c88736 ]

If an opcode handler semi-reliably returns -EAGAIN, io_wq_submit_work()
might continue busily hammer the same handler over and over again, which
is not ideal. The -EAGAIN handling in question was put there only for
IOPOLL, so restrict it to IOPOLL mode only where there is no other
recourse than to retry as we cannot wait.

Fixes: def596e9557c9 ("io_uring: support for IO polling")
Signed-off-by: Pavel Begunkov <asml.silence@gmail.com>
Link: https://lore.kernel.org/r/f168b4f24181942f3614dd8ff648221736f572e6.1652433740.git.asml.silence@gmail.com
Signed-off-by: Jens Axboe <axboe@kernel.dk>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2022-07-12 16:35:08 +02:00
..
9p
9p: fix fid refcount leak in v9fs_vfs_get_link
2022-06-29 09:03:19 +02:00
adfs
…
affs
…
afs
afs: Fix dynamic root getattr
2022-06-29 09:03:25 +02:00
autofs
autofs: fix wait name hash calculation in autofs_wait()
2021-10-20 21:09:02 -04:00
befs
isystem: ship and use stdarg.h
2021-08-19 09:02:55 +09:00
bfs
…
btrfs
btrfs: zoned: use dedicated lock for data relocation
2022-07-12 16:35:05 +02:00
cachefiles
fs: add is_idmapped_mnt() helper
2022-07-02 16:41:14 +02:00
ceph
ceph: flush the mdlog for filesystem sync
2022-06-14 18:36:23 +02:00
cifs
cifs: fix reconnect on smb3 mount types
2022-06-14 18:36:25 +02:00
coda
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configfs
configfs: fix a race in configfs_{,un}register_subsystem()
2022-03-02 11:48:02 +01:00
cramfs
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crypto
fscrypt: allow 256-bit master keys with AES-256-XTS
2021-11-18 19:16:11 +01:00
debugfs
debugfs: lockdown: Allow reading debugfs files that are not world readable
2022-01-27 11:03:55 +01:00
devpts
fsnotify: fix fsnotify hooks in pseudo filesystems
2022-02-01 17:27:01 +01:00
dlm
dlm: fix missing lkb refcount handling
2022-06-09 10:23:22 +02:00
ecryptfs
fs: add is_idmapped_mnt() helper
2022-07-02 16:41:14 +02:00
efivarfs
…
efs
…
erofs
iomap: Add done_before argument to iomap_dio_rw
2022-05-01 17:22:32 +02:00
exfat
exfat: check if cluster num is valid
2022-06-06 08:43:37 +02:00
exportfs
exportfs: support idmapped mounts
2022-06-09 10:23:32 +02:00
ext2
ext2: correct max file size computing
2022-04-08 14:23:35 +02:00
ext4
ext4: add reserved GDT blocks check
2022-06-22 14:22:05 +02:00
f2fs
f2fs: attach inline_data after setting compression
2022-06-29 09:03:27 +02:00
fat
fat: add ratelimit to fat*_ent_bread()
2022-06-09 10:22:42 +02:00
freevxfs
…
fscache
fscache: Remove an unused static variable
2021-10-04 22:13:12 +01:00
fuse
iov_iter: Turn iov_iter_fault_in_readable into fault_in_iov_iter_readable
2022-05-01 17:22:28 +02:00
gfs2
gfs2: Fix gfs2_file_buffered_write endless loop workaround
2022-07-12 16:34:59 +02:00
hfs
hfs: add lock nesting notation to hfs_find_init
2021-07-15 10:13:49 -07:00
hfsplus
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hostfs
hostfs: support splice_write
2021-08-26 22:28:02 +02:00
hpfs
hpfs: use iomap_fiemap to implement ->fiemap
2021-07-27 11:00:36 +02:00
hugetlbfs
hugetlbfs: fix hugetlbfs_statfs() locking
2022-06-09 10:23:11 +02:00
iomap
iomap: iomap_write_failed fix
2022-06-09 10:22:55 +02:00
isofs
isofs: Fix out of bound access for corrupted isofs image
2021-11-12 15:05:50 +01:00
jbd2
jbd2: fix a potential race while discarding reserved buffers after an abort
2022-04-27 14:39:02 +02:00
jffs2
jffs2: fix memory leak in jffs2_do_fill_super
2022-06-14 18:36:10 +02:00
jfs
fs: jfs: fix possible NULL pointer dereference in dbFree()
2022-06-09 10:22:41 +02:00
kernfs
kernfs: Separate kernfs_pr_cont_buf and rename_lock.
2022-06-14 18:36:22 +02:00
ksmbd
vfs: fix copy_file_range() regression in cross-fs copies
2022-07-07 17:53:27 +02:00
lockd
lockd: fix failure to cleanup client locks
2022-02-05 12:38:57 +01:00
minix
minix: fix bug when opening a file with O_DIRECT
2022-04-13 20:59:10 +02:00
netfs
netfs: fix parameter of cleanup()
2021-12-29 12:28:59 +01:00
nfs
pNFS: Avoid a live lock condition in pnfs_update_layout()
2022-06-22 14:21:59 +02:00
nfs_common
nfs: Fix kerneldoc warning shown up by W=1
2021-10-04 22:02:17 +01:00
nfsd
NFSD: COMMIT operations must not return NFS?ERR_INVAL
2022-07-12 16:35:01 +02:00
nilfs2
nilfs2: fix lockdep warnings during disk space reclamation
2022-05-25 09:57:26 +02:00
nls
…
notify
fsnotify: fix wrong lockdep annotations
2022-06-09 10:22:50 +02:00
ntfs
iov_iter: Turn iov_iter_fault_in_readable into fault_in_iov_iter_readable
2022-05-01 17:22:28 +02:00
ntfs3
fs/ntfs3: Fix invalid free in log_replay
2022-06-09 10:23:32 +02:00
ocfs2
ocfs2: dlmfs: fix error handling of user_dlm_destroy_lock
2022-06-09 10:23:22 +02:00
omfs
…
openpromfs
…
orangefs
orangefs: Fix the size of a memory allocation in orangefs_bufmap_alloc()
2022-01-20 09:13:13 +01:00
overlayfs
fs: add is_idmapped_mnt() helper
2022-07-02 16:41:14 +02:00
proc
proc: fix dentry/inode overinstantiating under /proc/${pid}/net
2022-06-09 10:23:10 +02:00
pstore
pstore: Don't use semaphores in always-atomic-context code
2022-04-08 14:23:01 +02:00
qnx4
qnx4: work around gcc false positive warning bug
2021-09-21 08:36:48 -07:00
qnx6
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quota
quota: Prevent memory allocation recursion while holding dq_lock
2022-06-22 14:21:56 +02:00
ramfs
…
reiserfs
Kbuild updates for v5.15
2021-09-03 15:33:47 -07:00
romfs
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smbfs_common
cifs: Fix crash on unload of cifs_arc4.ko
2021-12-14 10:57:12 +01:00
squashfs
squashfs: use bvec_virt
2021-08-16 10:50:32 -06:00
sysfs
sysfs: Allow deferred execution of iomem_get_mapping()
2021-08-06 13:05:28 +02:00
sysv
…
tracefs
tracefs: Set the group ownership in apply_options() not parse_options()
2022-03-02 11:48:05 +01:00
ubifs
ubifs: rename_whiteout: correct old_dir size computing
2022-04-08 14:24:08 +02:00
udf
udf: Avoid using stale lengthOfImpUse
2022-05-15 20:18:52 +02:00
ufs
isystem: ship and use stdarg.h
2021-08-19 09:02:55 +09:00
unicode
…
vboxsf
vboxfs: fix broken legacy mount signature checking
2021-09-27 11:26:21 -07:00
verity
fs-verity: fix signed integer overflow with i_size near S64_MAX
2021-09-22 10:56:34 -07:00
xfs
fs: port higher-level mapping helpers
2022-07-02 16:41:16 +02:00
zonefs
zonefs: fix zonefs_iomap_begin() for reads
2022-06-25 15:18:40 +02:00
aio.c
aio: Fix incorrect usage of eventfd_signal_allowed()
2021-12-14 10:57:22 +01:00
anon_inodes.c
…
attr.c
fs: account for group membership
2022-07-02 16:41:17 +02:00
bad_inode.c
vfs: add rcu argument to ->get_acl() callback
2021-08-18 22:08:24 +02:00
binfmt_aout.c
binfmt: a.out: Fix bogus semicolon
2021-09-05 10:15:05 -07:00
binfmt_elf_fdpic.c
coredump: Snapshot the vmas in do_coredump
2022-04-08 14:24:17 +02:00
binfmt_elf.c
coredump: Use the vma snapshot in fill_files_note
2022-04-08 14:24:18 +02:00
binfmt_flat.c
binfmt_flat: do not stop relocating GOT entries prematurely on riscv
2022-06-09 10:22:26 +02:00
binfmt_misc.c
…
binfmt_script.c
…
buffer.c
mm: fs: fix lru_cache_disabled race in bh_lru
2022-04-08 14:22:54 +02:00
char_dev.c
…
compat_binfmt_elf.c
…
coredump.c
coredump: Use the vma snapshot in fill_files_note
2022-04-08 14:24:18 +02:00
d_path.c
d_path: make 'prepend()' fill up the buffer exactly on overflow
2021-09-02 10:07:29 -07:00
dax.c
dax: fix cache flush on PMD-mapped pages
2022-06-09 10:23:09 +02:00
dcache.c
…
direct-io.c
…
drop_caches.c
fs: drop_caches: fix skipping over shadow cache inodes
2021-09-03 09:58:10 -07:00
eventfd.c
eventfd: Export eventfd_wake_count to modules
2021-09-06 07:20:56 -04:00
eventpoll.c
ARM development updates for 5.15:
2021-09-09 13:25:49 -07:00
exec.c
exec: Force single empty string when argv is empty
2022-04-08 14:23:01 +02:00
fcntl.c
Merge branch 'akpm' (patches from Andrew)
2021-09-03 10:08:28 -07:00
fhandle.c
…
file_table.c
SUNRPC: Ensure we flush any closed sockets before xs_xprt_free()
2022-05-18 10:26:57 +02:00
file.c
fs: fix fd table size alignment properly
2022-04-08 14:23:54 +02:00
filesystems.c
fs: simplify get_filesystem_list / get_all_fs_names
2021-08-23 01:25:40 -04:00
fs_context.c
vfs: fs_context: fix up param length parsing in legacy_parse_param
2022-01-20 09:13:14 +01:00
fs_parser.c
namei: Standardize callers of filename_lookup()
2021-09-07 16:07:47 -04:00
fs_pin.c
…
fs_struct.c
…
fs_types.c
…
fs-writeback.c
writeback: Fix inode->i_io_list not be protected by inode->i_lock error
2022-06-14 18:36:26 +02:00
fsopen.c
…
init.c
…
inode.c
writeback: Fix inode->i_io_list not be protected by inode->i_lock error
2022-06-14 18:36:26 +02:00
internal.h
block: simplify the block device syncing code
2022-04-27 14:38:50 +02:00
io_uring.c
io_uring: avoid io-wq -EAGAIN looping for !IOPOLL
2022-07-12 16:35:08 +02:00
io-wq.c
io-wq: drop wqe lock before creating new worker
2021-12-22 09:32:51 +01:00
io-wq.h
io-wq: provide a way to limit max number of workers
2021-08-29 07:55:55 -06:00
ioctl.c
fs: fix an infinite loop in iomap_fiemap
2022-05-25 09:57:26 +02:00
Kconfig
4 cifs/smb3 fixes, one for DFS reconnect, and one to begin creating common headers for server and client and the other two to rename the cifs_common directory to smbfs_common to be more consistent ie change use of the name cifs to smb which is more accurate
2021-09-12 10:10:21 -07:00
Kconfig.binfmt
binfmt: remove support for em86 (alpha only)
2021-07-25 22:33:03 -07:00
kernel_read_file.c
vfs: check fd has read access in kernel_read_file_from_fd()
2021-10-18 20:22:03 -10:00
libfs.c
…
locks.c
Revert "memcg: enable accounting for file lock caches"
2021-09-07 11:21:48 -07:00
Makefile
4 cifs/smb3 fixes, one for DFS reconnect, and one to begin creating common headers for server and client and the other two to rename the cifs_common directory to smbfs_common to be more consistent ie change use of the name cifs to smb which is more accurate
2021-09-12 10:10:21 -07:00
mbcache.c
…
mount.h
…
mpage.c
…
namei.c
fs: add two trivial lookup helpers
2022-06-09 10:23:32 +02:00
namespace.c
fs: support mapped mounts of mapped filesystems
2022-07-02 16:41:17 +02:00
no-block.c
…
nsfs.c
…
open.c
fs: support mapped mounts of mapped filesystems
2022-07-02 16:41:17 +02:00
pipe.c
pipe: Fix missing lock in pipe_resize_ring()
2022-06-06 08:43:37 +02:00
pnode.c
…
pnode.h
…
posix_acl.c
fs: fix acl translation
2022-07-02 16:41:17 +02:00
proc_namespace.c
fs: add is_idmapped_mnt() helper
2022-07-02 16:41:14 +02:00
read_write.c
vfs: fix copy_file_range() regression in cross-fs copies
2022-07-07 17:53:27 +02:00
readdir.c
…
remap_range.c
fs: remove mandatory file locking support
2021-08-23 06:15:36 -04:00
select.c
select: Fix indefinitely sleeping task in poll_schedule_timeout()
2022-01-29 10:58:25 +01:00
seq_file.c
seq_file: disallow extremely large seq buffer allocations
2021-07-19 17:18:48 -07:00
signalfd.c
signalfd: use wake_up_pollfree()
2021-12-14 10:57:15 +01:00
splice.c
…
stack.c
…
stat.c
stat: fix inconsistency between struct stat and struct compat_stat
2022-04-27 14:38:57 +02:00
statfs.c
…
super.c
vfs: make freeze_super abort when sync_filesystem returns error
2022-02-23 12:03:05 +01:00
sync.c
vfs: make sync_filesystem return errors from ->sync_fs
2022-04-27 14:38:50 +02:00
timerfd.c
timerfd: Provide timerfd_resume()
2021-08-10 17:57:22 +02:00
userfaultfd.c
userfaultfd: fix a race between writeprotect and exit_mmap()
2021-10-18 20:22:02 -10:00
utimes.c
…
xattr.c
fs: fix acl translation
2022-07-02 16:41:17 +02:00