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76de6749d1
linux/io_uring
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Pavel Begunkov 76de6749d1 io_uring: further limit non-owner defer-tw cq waiting 
In case of DEFER_TASK_WORK we try to restrict waiters to only one task,
which is also the only submitter; however, we don't do it reliably,
which might be very confusing and backfire in the future. E.g. we
currently allow multiple tasks in io_iopoll_check().

Fixes: c0e0d6ba25 ("io_uring: add IORING_SETUP_DEFER_TASKRUN")
Signed-off-by: Pavel Begunkov <asml.silence@gmail.com>
Reviewed-by: Dylan Yudaken <dylany@fb.com>
Link: https://lore.kernel.org/r/94c83c0a7fe468260ee2ec31bdb0095d6e874ba2.1662652536.git.asml.silence@gmail.com
Signed-off-by: Jens Axboe <axboe@kernel.dk>
2022-09-21 13:14:46 -06:00
..
advise.c io_uring: make io_kiocb_to_cmd() typesafe 2022-08-12 17:01:00 -06:00
advise.h
alloc_cache.h
cancel.c io_uring: add IORING_SETUP_DEFER_TASKRUN 2022-09-21 10:30:42 -06:00
cancel.h
epoll.c io_uring: make io_kiocb_to_cmd() typesafe 2022-08-12 17:01:00 -06:00
epoll.h
fdinfo.c
fdinfo.h
filetable.c
filetable.h
fs.c io_uring: make io_kiocb_to_cmd() typesafe 2022-08-12 17:01:00 -06:00
fs.h
io_uring.c io_uring: further limit non-owner defer-tw cq waiting 2022-09-21 13:14:46 -06:00
io_uring.h io_uring: further limit non-owner defer-tw cq waiting 2022-09-21 13:14:46 -06:00
io-wq.c
io-wq.h
kbuf.c io_uring: make io_kiocb_to_cmd() typesafe 2022-08-12 17:01:00 -06:00
kbuf.h io_uring: allow buffer recycling in READV 2022-09-21 10:30:43 -06:00
Makefile
msg_ring.c io_uring/msg_ring: check file type before putting 2022-09-15 11:44:35 -06:00
msg_ring.h
net.c io_uring/net: use io_sr_msg for sendzc 2022-09-21 10:30:43 -06:00
net.h io_uring/net: simplify zerocopy send user API 2022-09-01 09:13:33 -06:00
nop.c
nop.h
notif.c io_uring/notif: Remove the unused function io_notif_complete() 2022-09-05 11:42:39 -06:00
notif.h io_uring/net: simplify zerocopy send user API 2022-09-01 09:13:33 -06:00
opdef.c io_uring/net: use async caches for async prep 2022-09-21 10:30:43 -06:00
opdef.h io_uring: conditional ->async_data allocation 2022-08-24 08:57:28 -06:00
openclose.c io_uring: make io_kiocb_to_cmd() typesafe 2022-08-12 17:01:00 -06:00
openclose.h
poll.c io_uring: make io_kiocb_to_cmd() typesafe 2022-08-12 17:01:00 -06:00
poll.h
refs.h
rsrc.c io_uring: add IORING_SETUP_DEFER_TASKRUN 2022-09-21 10:30:42 -06:00
rsrc.h Revert "io_uring: rename IORING_OP_FILES_UPDATE" 2022-09-01 09:13:33 -06:00
rw.c io_uring: allow buffer recycling in READV 2022-09-21 10:30:43 -06:00
rw.h
slist.h
splice.c io_uring: make io_kiocb_to_cmd() typesafe 2022-08-12 17:01:00 -06:00
splice.h
sqpoll.c
sqpoll.h
statx.c io_uring: make io_kiocb_to_cmd() typesafe 2022-08-12 17:01:00 -06:00
statx.h
sync.c io_uring: make io_kiocb_to_cmd() typesafe 2022-08-12 17:01:00 -06:00
sync.h
tctx.c
tctx.h
timeout.c io_uring: make io_kiocb_to_cmd() typesafe 2022-08-12 17:01:00 -06:00
timeout.h
uring_cmd.c io_uring: add iopoll infrastructure for io_uring_cmd 2022-09-21 10:30:42 -06:00
uring_cmd.h
xattr.c io_uring: make io_kiocb_to_cmd() typesafe 2022-08-12 17:01:00 -06:00
xattr.h