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Pavel Begunkov c0713540f6 io_uring: fix leaks on IOPOLL and CQE_SKIP 
If all completed requests in io_do_iopoll() were marked with
REQ_F_CQE_SKIP, we'll not only skip CQE posting but also
io_free_batch_list() leaking memory and resources.

Move @nr_events increment before REQ_F_CQE_SKIP check. We'll potentially
return the value greater than the real one, but iopolling will deal with
it and the userspace will re-iopoll if needed. In anyway, I don't think
there are many use cases for REQ_F_CQE_SKIP + IOPOLL.

Fixes: 83a13a4181b0e ("io_uring: tweak iopoll CQE_SKIP event counting")
Signed-off-by: Pavel Begunkov <asml.silence@gmail.com>
Link: https://lore.kernel.org/r/5072fc8693fbfd595f89e5d4305bfcfd5d2f0a64.1650186611.git.asml.silence@gmail.com
Signed-off-by: Jens Axboe <axboe@kernel.dk>
2022-04-17 06:54:11 -06:00
..
9p
Netfs prep for write helpers
2022-03-31 15:49:36 -07:00
adfs
Filesystem folio changes for 5.18
2022-03-22 18:26:56 -07:00
affs
Filesystem folio changes for 5.18
2022-03-22 18:26:56 -07:00
afs
Netfs prep for write helpers
2022-03-31 15:49:36 -07:00
autofs
autofs: fix wait name hash calculation in autofs_wait()
2021-10-20 21:09:02 -04:00
befs
fs: allocate inode by using alloc_inode_sb()
2022-03-22 15:57:03 -07:00
bfs
Filesystem folio changes for 5.18
2022-03-22 18:26:56 -07:00
btrfs
for-5.18-rc1-tag
2022-04-05 08:59:37 -07:00
cachefiles
Netfs prep for write helpers
2022-03-31 15:49:36 -07:00
ceph
Filesystem/VFS changes for 5.18, part two
2022-04-01 13:50:50 -07:00
cifs
cifs: update internal module number
2022-04-04 22:40:14 -05:00
coda
Folio changes for 5.18
2022-03-22 17:03:12 -07:00
configfs
configfs: fix a race in configfs_{,un}register_subsystem()
2022-02-22 18:30:28 +01:00
cramfs
cramfs: use bdev_nr_bytes instead of open coding it
2021-10-18 14:43:22 -06:00
crypto
fs: Remove ->readpages address space operation
2022-04-01 13:45:33 -04:00
debugfs
debugfs: Document that debugfs_create functions need not be error checked
2022-02-25 11:56:13 +01:00
devpts
fsnotify: fix fsnotify hooks in pseudo filesystems
2022-01-24 14:17:02 +01:00
dlm
driver core changes for 5.17-rc1
2022-01-12 11:11:34 -08:00
ecryptfs
Filesystem folio changes for 5.18
2022-03-22 18:26:56 -07:00
efivarfs
…
efs
fs: allocate inode by using alloc_inode_sb()
2022-03-22 15:57:03 -07:00
erofs
Filesystem folio changes for 5.18
2022-03-22 18:26:56 -07:00
exfat
Description for this pull request:
2022-04-01 14:20:24 -07:00
exportfs
…
ext2
\n
2022-03-25 17:38:15 -07:00
ext4
ext4: Correct ext4_journalled_dirty_folio() conversion
2022-04-01 14:40:44 -04:00
f2fs
f2fs: Get the superblock from the mapping instead of the page
2022-04-01 14:40:44 -04:00
fat
Merge branch 'akpm' (patches from Andrew)
2022-03-24 14:14:07 -07:00
freevxfs
fs: allocate inode by using alloc_inode_sb()
2022-03-22 15:57:03 -07:00
fscache
Netfs prep for write helpers
2022-03-31 15:49:36 -07:00
fuse
fs: Remove ->readpages address space operation
2022-04-01 13:45:33 -04:00
gfs2
gfs2 fixes
2022-03-31 15:57:50 -07:00
hfs
Filesystem folio changes for 5.18
2022-03-22 18:26:56 -07:00
hfsplus
Filesystem folio changes for 5.18
2022-03-22 18:26:56 -07:00
hostfs
Filesystem folio changes for 5.18
2022-03-22 18:26:56 -07:00
hpfs
Filesystem folio changes for 5.18
2022-03-22 18:26:56 -07:00
hugetlbfs
Filesystem folio changes for 5.18
2022-03-22 18:26:56 -07:00
iomap
iomap: Simplify is_partially_uptodate a little
2022-04-01 14:40:43 -04:00
isofs
fs: allocate inode by using alloc_inode_sb()
2022-03-22 15:57:03 -07:00
jbd2
Filesystem folio changes for 5.18
2022-03-22 18:26:56 -07:00
jffs2
This pull request contains fixes for JFFS2, UBI and UBIFS
2022-03-31 16:09:41 -07:00
jfs
A couple bug fixes
2022-03-29 18:17:30 -07:00
kernfs
Merge branch 'work.misc' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs
2022-04-01 19:57:03 -07:00
ksmbd
six ksmbd server fixes
2022-04-01 14:39:28 -07:00
lockd
NFSD: Move svc_serv_ops::svo_function into struct svc_serv
2022-02-28 10:26:40 -05:00
minix
Merge branch 'akpm' (patches from Andrew)
2022-03-24 14:14:07 -07:00
netfs
netfs: Split some core bits out into their own file
2022-03-18 09:29:05 +00:00
nfs
NFS client bugfixes for Linux 5.18
2022-04-08 07:39:17 -10:00
nfs_common
nfs: Fix kerneldoc warning shown up by W=1
2021-10-04 22:02:17 +01:00
nfsd
Folio changes for 5.18
2022-03-22 17:03:12 -07:00
nilfs2
nilfs2: get rid of nilfs_mapping_init()
2022-04-01 11:46:09 -07:00
nls
…
notify
fsnotify: remove redundant parameter judgment
2022-03-14 09:05:25 +01:00
ntfs
ntfs: Correct mark_ntfs_record_dirty() folio conversion
2022-04-01 14:40:44 -04:00
ntfs3
Filesystem folio changes for 5.18
2022-03-22 18:26:56 -07:00
ocfs2
ocfs2: fix crash when mount with quota enabled
2022-04-01 11:46:09 -07:00
omfs
fs: Convert __set_page_dirty_buffers to block_dirty_folio
2022-03-16 13:37:04 -04:00
openpromfs
fs: allocate inode by using alloc_inode_sb()
2022-03-22 15:57:03 -07:00
orangefs
Filesystem folio changes for 5.18
2022-03-22 18:26:56 -07:00
overlayfs
fs: allocate inode by using alloc_inode_sb()
2022-03-22 15:57:03 -07:00
proc
Updates to Tracing:
2022-04-03 12:26:01 -07:00
pstore
pstore: Don't use semaphores in always-atomic-context code
2022-03-15 11:08:23 -07:00
qnx4
fs: allocate inode by using alloc_inode_sb()
2022-03-22 15:57:03 -07:00
qnx6
fs: allocate inode by using alloc_inode_sb()
2022-03-22 15:57:03 -07:00
quota
quota: make dquot_quota_sync return errors from ->sync_fs
2022-01-30 08:59:47 -08:00
ramfs
Merge branch 'akpm' (patches from Andrew)
2021-11-09 10:11:53 -08:00
reiserfs
\n
2022-03-25 17:38:15 -07:00
romfs
fs: allocate inode by using alloc_inode_sb()
2022-03-22 15:57:03 -07:00
smbfs_common
smb3: fix ksmbd bigendian bug in oplock break, and move its struct to smbfs_common
2022-03-31 09:38:53 -05:00
squashfs
Merge branch 'akpm' (patches from Andrew)
2022-03-22 16:11:53 -07:00
sysfs
kobject: kobj_type: remove default_attrs
2022-04-05 15:39:19 +02:00
sysv
Filesystem folio changes for 5.18
2022-03-22 18:26:56 -07:00
tracefs
tracefs: Set the group ownership in apply_options() not parse_options()
2022-02-25 21:05:04 -05:00
ubifs
This pull request contains fixes for JFFS2, UBI and UBIFS
2022-03-31 16:09:41 -07:00
udf
\n
2022-03-25 17:38:15 -07:00
ufs
Filesystem folio changes for 5.18
2022-03-22 18:26:56 -07:00
unicode
kbuild: unify cmd_copy and cmd_shipped
2022-02-14 10:37:32 +09:00
vboxsf
Filesystem folio changes for 5.18
2022-03-22 18:26:56 -07:00
verity
fs: Remove ->readpages address space operation
2022-04-01 13:45:33 -04:00
xfs
Bug fixes for 5.18:
2022-04-01 19:30:44 -07:00
zonefs
for-5.18/write-streams-2022-03-18
2022-03-26 11:51:46 -07:00
aio.c
Merge branch 'work.misc' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs
2022-04-01 19:57:03 -07:00
anon_inodes.c
fs: add anon_inode_getfile_secure() similar to anon_inode_getfd_secure()
2021-09-19 22:35:37 -04:00
attr.c
fs: handle circular mappings correctly
2021-11-17 09:26:09 +01:00
bad_inode.c
…
binfmt_aout.c
…
binfmt_elf_fdpic.c
coredump: Snapshot the vmas in do_coredump
2022-03-08 12:55:29 -06:00
binfmt_elf_test.c
binfmt_elf: Introduce KUnit test
2022-03-03 20:38:56 -08:00
binfmt_elf.c
execve updates for v5.18-rc1
2022-03-21 19:16:02 -07:00
binfmt_flat.c
coredump: Don't compile flat_core_dump when coredumps are disabled
2022-03-09 10:37:07 -06:00
binfmt_misc.c
Fix regression due to "fs: move binfmt_misc sysctl to its own file"
2022-02-09 09:50:02 -08:00
binfmt_script.c
…
buffer.c
filemap: Remove AOP_FLAG_CONT_EXPAND
2022-04-01 14:40:44 -04:00
char_dev.c
…
compat_binfmt_elf.c
binfmt_elf: Introduce KUnit test
2022-03-03 20:38:56 -08:00
coredump.c
ptrace: Cleanups for v5.18
2022-03-28 17:29:53 -07:00
d_path.c
d_path: fix Kernel doc validator complaining
2021-11-06 13:30:32 -07:00
dax.c
dax for 5.18
2022-03-24 18:12:09 -07:00
dcache.c
mm: dcache: use kmem_cache_alloc_lru() to allocate dentry
2022-03-22 15:57:03 -07:00
direct-io.c
block: remove the per-bio/request write hint
2022-03-07 12:45:57 -07:00
drop_caches.c
…
eventfd.c
…
eventpoll.c
eventpoll: simplify sysctl declaration with register_sysctl()
2022-01-22 08:33:35 +02:00
exec.c
ptrace: Cleanups for v5.18
2022-03-28 17:29:53 -07:00
fcntl.c
fs: remove fs.f_write_hint
2022-03-08 17:55:03 -07:00
fhandle.c
…
file_table.c
SUNRPC: Ensure we flush any closed sockets before xs_xprt_free()
2022-04-07 16:19:47 -04:00
file.c
fs: fix fd table size alignment properly
2022-03-29 23:29:18 -07:00
filesystems.c
…
fs_context.c
vfs: fs_context: fix up param length parsing in legacy_parse_param
2022-01-18 09:23:19 +02:00
fs_parser.c
fs_parse: allow parameter value to be empty
2021-12-09 14:09:36 -05:00
fs_pin.c
…
fs_struct.c
…
fs_types.c
…
fs-writeback.c
Merge branch 'akpm' (patches from Andrew)
2022-03-22 16:11:53 -07:00
fsopen.c
…
init.c
…
inode.c
fs: introduce alloc_inode_sb() to allocate filesystems specific inode
2022-03-22 15:57:03 -07:00
internal.h
Merge branch 'work.misc' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs
2022-04-01 19:57:03 -07:00
io_uring.c
io_uring: fix leaks on IOPOLL and CQE_SKIP
2022-04-17 06:54:11 -06:00
io-wq.c
ptrace: Cleanups for v5.18
2022-03-28 17:29:53 -07:00
io-wq.h
io_uring: stop using io_wq_work as an fd placeholder
2022-04-11 17:06:20 -06:00
ioctl.c
Fixes for 5.18-rc1:
2022-04-01 19:35:56 -07:00
Kconfig
Folio changes for 5.18
2022-03-22 17:03:12 -07:00
Kconfig.binfmt
execve updates for v5.18-rc1
2022-03-21 19:16:02 -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
fs: Convert __set_page_dirty_no_writeback to noop_dirty_folio
2022-03-16 13:37:05 -04:00
locks.c
fs: move locking sysctls where they are used
2022-01-22 08:33:36 +02:00
Makefile
Fix from Christoph Hellwig merging the CONFIG_UNICODE_UTF8_DATA into the
2022-02-01 11:13:24 -08:00
mbcache.c
…
mount.h
…
mpage.c
for-5.18/alloc-cleanups-2022-03-25
2022-03-26 11:59:30 -07:00
namei.c
\n
2022-01-28 17:51:31 +02:00
namespace.c
Merge branch 'work.misc' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs
2022-04-01 19:57:03 -07:00
no-block.c
…
nsfs.c
…
open.c
fs: remove fs.f_write_hint
2022-03-08 17:55:03 -07:00
pipe.c
fs/pipe.c: local vars have to match types of proper pipe_inode_info fields
2022-03-23 19:00:34 -07:00
pnode.c
…
pnode.h
…
posix_acl.c
fs: support mapped mounts of mapped filesystems
2021-12-05 10:28:57 +01:00
proc_namespace.c
fs: add is_idmapped_mnt() helper
2021-12-03 18:44:06 +01:00
read_write.c
Merge branch 'work.misc' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs
2022-04-01 19:57:03 -07:00
readdir.c
…
remap_range.c
Filesystem folio changes for 5.18
2022-03-22 18:26:56 -07:00
select.c
select: Fix indefinitely sleeping task in poll_schedule_timeout()
2022-01-11 09:03:05 -08:00
seq_file.c
seq_file: fix NULL pointer arithmetic warning
2022-02-01 11:31:55 -05:00
signalfd.c
Merge branch 'signal-for-v5.17' of git://git.kernel.org/pub/scm/linux/kernel/git/ebiederm/user-namespace
2022-01-17 05:49:30 +02:00
splice.c
mm: Convert remove_mapping() to take a folio
2022-03-21 12:59:01 -04:00
stack.c
…
stat.c
io-uring: Make statx API stable
2022-03-10 09:33:55 -07:00
statfs.c
…
super.c
vfs: make freeze_super abort when sync_filesystem returns error
2022-01-30 08:59:47 -08:00
sync.c
vfs: make sync_filesystem return errors from ->sync_fs
2022-01-30 08:59:47 -08:00
sysctls.c
fs: move namespace sysctls and declare fs base directory
2022-01-22 08:33:36 +02:00
timerfd.c
…
userfaultfd.c
userfaultfd: provide unmasked address on page-fault
2022-03-22 15:57:08 -07:00
utimes.c
…
xattr.c
…