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a4d416dc60
linux/io_uring
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linke li a4d416dc60 io_uring/msg_ring: reuse ctx->submitter_task read using READ_ONCE instead of re-reading it 
In io_msg_exec_remote(), ctx->submitter_task is read using READ_ONCE at
the beginning of the function, checked, and then re-read from
ctx->submitter_task, voiding all guarantees of the checks. Reuse the value
that was read by READ_ONCE to ensure the consistency of the task struct
throughout the function.

Signed-off-by: linke li <lilinke99@qq.com>
Link: https://lore.kernel.org/r/tencent_F9B2296C93928D6F68FF0C95C33475C68209@qq.com
Signed-off-by: Jens Axboe <axboe@kernel.dk>
2024-04-26 07:40:12 -06:00
..
advise.c io_uring: always go async for unsupported fadvise flags 2023-01-29 15:18:26 -07:00
advise.h
alloc_cache.h io_uring/alloc_cache: switch to array based caching 2024-04-15 08:10:25 -06:00
cancel.c io_uring: fix warnings on shadow variables 2024-04-15 08:10:26 -06:00
cancel.h io_uring/cancel: don't default to setting req->work.cancel_seq 2024-02-08 13:27:06 -07:00
epoll.c io_uring: undeprecate epoll_ctl support 2023-05-26 20:22:41 -06:00
epoll.h
fdinfo.c io_uring: fix warnings on shadow variables 2024-04-15 08:10:26 -06:00
fdinfo.h
filetable.c io_uring: drop any code related to SCM_RIGHTS 2023-12-19 12:36:34 -07:00
filetable.h io_uring: expand main struct io_kiocb flags to 64-bits 2024-02-08 13:27:03 -07:00
fs.c io_uring/fs: consider link->flags when getting path for LINKAT 2023-11-20 09:01:42 -07:00
fs.h
futex.c io_uring/alloc_cache: switch to array based caching 2024-04-15 08:10:25 -06:00
futex.h io_uring/alloc_cache: switch to array based caching 2024-04-15 08:10:25 -06:00
io_uring.c io_uring/rw: reinstate thread check for retries 2024-04-25 09:04:32 -06:00
io_uring.h io_uring/rw: reinstate thread check for retries 2024-04-25 09:04:32 -06:00
io-wq.c io-wq: Drop intermediate step between pending list and active work 2024-04-17 08:20:32 -06:00
io-wq.h io_uring: break out of iowq iopoll on teardown 2023-09-07 09:02:27 -06:00
kbuf.c io_uring/kbuf: add helpers for getting/peeking multiple buffers 2024-04-22 11:26:01 -06:00
kbuf.h io_uring/kbuf: add helpers for getting/peeking multiple buffers 2024-04-22 11:26:01 -06:00
Makefile io_uring: move mapping/allocation helpers to a separate file 2024-04-15 08:10:26 -06:00
memmap.c io_uring: move mapping/allocation helpers to a separate file 2024-04-15 08:10:26 -06:00
memmap.h io_uring: move mapping/allocation helpers to a separate file 2024-04-15 08:10:26 -06:00
msg_ring.c io_uring/msg_ring: reuse ctx->submitter_task read using READ_ONCE instead of re-reading it 2024-04-26 07:40:12 -06:00
msg_ring.h io_uring: get rid of double locking 2022-12-07 06:47:13 -07:00
napi.c io_uring/napi: enable even with a timeout of 0 2024-02-15 15:37:28 -07:00
napi.h io_uring: add register/unregister napi function 2024-02-09 11:54:32 -07:00
net.c io_uring/net: support bundles for recv 2024-04-22 11:26:11 -06:00
net.h io_uring/alloc_cache: switch to array based caching 2024-04-15 08:10:25 -06:00
nop.c
nop.h
notif.c io_uring/notif: implement notification stacking 2024-04-22 19:31:18 -06:00
notif.h io_uring/notif: implement notification stacking 2024-04-22 19:31:18 -06:00
opdef.c io_uring/net: add provided buffer support for IORING_OP_SEND 2024-04-22 11:25:56 -06:00
opdef.h io_uring: drop ->prep_async() 2024-04-15 08:10:25 -06:00
openclose.c io_uring: enable audit and restrict cred override for IORING_OP_FIXED_FD_INSTALL 2024-01-23 15:25:14 -07:00
openclose.h io_uring/openclose: add support for IORING_OP_FIXED_FD_INSTALL 2023-12-12 07:42:57 -07:00
poll.c io_uring/alloc_cache: switch to array based caching 2024-04-15 08:10:25 -06:00
poll.h io_uring/poll: shrink alloc cache size to 32 2024-04-15 08:10:25 -06:00
refs.h io_uring: kill dead code in io_req_complete_post 2024-04-15 08:10:26 -06:00
register.c io_uring: fix warnings on shadow variables 2024-04-15 08:10:26 -06:00
register.h io_uring/register: move io_uring_register(2) related code to register.c 2023-12-19 08:54:20 -07:00
rsrc.c io_uring: move mapping/allocation helpers to a separate file 2024-04-15 08:10:26 -06:00
rsrc.h io_uring: remove io_req_put_rsrc_locked() 2024-04-15 08:10:26 -06:00
rw.c io_uring/rw: reinstate thread check for retries 2024-04-25 09:04:32 -06:00
rw.h io_uring/alloc_cache: switch to array based caching 2024-04-15 08:10:25 -06:00
slist.h io_uring: silence variable ‘prev’ set but not used warning 2023-03-09 10:10:58 -07:00
splice.c splice: return type ssize_t from all helpers 2023-12-12 16:19:59 +01:00
splice.h
sqpoll.c io_uring/sqpoll: work around a potential audit memory leak 2024-04-15 13:06:19 -06:00
sqpoll.h io_uring/sqpoll: statistics of the true utilization of sq threads 2024-03-01 06:28:19 -07:00
statx.c io_uring: for requests that require async, force it 2023-01-29 15:18:26 -07:00
statx.h
sync.c io_uring: for requests that require async, force it 2023-01-29 15:18:26 -07:00
sync.h
tctx.c io_uring: Add io_uring_setup flag to pre-register ring fd and never install it 2023-05-16 08:06:00 -06:00
tctx.h io_uring: simplify __io_uring_add_tctx_node 2022-10-07 12:25:30 -06:00
timeout.c io_uring/timeout: remove duplicate initialization of the io_timeout list. 2024-04-15 08:10:27 -06:00
timeout.h io_uring: remove unused return from io_disarm_next 2022-09-21 13:15:01 -06:00
truncate.c io_uring: add support for ftruncate 2024-02-09 09:04:39 -07:00
truncate.h io_uring: add support for ftruncate 2024-02-09 09:04:39 -07:00
uring_cmd.c io_uring: separate header for exported net bits 2024-04-15 08:10:26 -06:00
uring_cmd.h io_uring/alloc_cache: switch to array based caching 2024-04-15 08:10:25 -06:00
waitid.c io_uring: remove struct io_tw_state::locked 2024-04-15 08:10:24 -06:00
waitid.h io_uring: add IORING_OP_WAITID support 2023-09-21 12:04:45 -06:00
xattr.c io_uring: use file_mnt_idmap helper 2024-02-06 19:55:14 -07:00
xattr.h