Hagar Hemdan 73254a297c io_uring: fix possible deadlock in io_register_iowq_max_workers() ... The io_register_iowq_max_workers() function calls io_put_sq_data(), which acquires the sqd->lock without releasing the uring_lock. Similar to the commit 009ad9f0c6 ("io_uring: drop ctx->uring_lock before acquiring sqd->lock"), this can lead to a potential deadlock situation. To resolve this issue, the uring_lock is released before calling io_put_sq_data(), and then it is re-acquired after the function call. This change ensures that the locks are acquired in the correct order, preventing the possibility of a deadlock. Suggested-by: Maximilian Heyne <mheyne@amazon.de> Signed-off-by: Hagar Hemdan <hagarhem@amazon.com> Link: https://lore.kernel.org/r/20240604130527.3597-1-hagarhem@amazon.com Signed-off-by: Jens Axboe <axboe@kernel.dk>		2024-06-04 07:39:17 -06:00
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Makefile	…
advise.c	…
advise.h	…
alloc_cache.h	…
cancel.c	…
cancel.h	…
epoll.c	…
epoll.h	…
fdinfo.c	…
fdinfo.h	…
filetable.c	…
filetable.h	…
fs.c	…
fs.h	…
futex.c	…
futex.h	…
io-wq.c	io_uring/io-wq: avoid garbage value of 'match' in io_wq_enqueue()	2024-06-04 07:39:00 -06:00
io-wq.h	…
io_uring.c	io_uring: remove checks for NULL 'sq_offset'	2024-05-22 11:13:44 -06:00
io_uring.h	io_uring: check for non-NULL file pointer in io_file_can_poll()	2024-06-01 12:25:35 -06:00
kbuf.c	…
kbuf.h	…
memmap.c	io_uring: don't attempt to mmap larger than what the user asks for	2024-05-29 09:53:14 -06:00
memmap.h	…
msg_ring.c	…
msg_ring.h	…
napi.c	io_uring/napi: fix timeout calculation	2024-06-04 07:32:45 -06:00
napi.h	…
net.c	io_uring/net: assign kmsg inq/flags before buffer selection	2024-05-30 14:04:37 -06:00
net.h	…
nop.c	…
nop.h	…
notif.c	…
notif.h	…
opdef.c	io_uring/rw: Free iovec before cleaning async data	2024-05-30 08:33:01 -06:00
opdef.h	…
openclose.c	…
openclose.h	…
poll.c	…
poll.h	…
refs.h	…
register.c	io_uring: fix possible deadlock in io_register_iowq_max_workers()	2024-06-04 07:39:17 -06:00
register.h	…
rsrc.c	…
rsrc.h	…
rw.c	Assorted commits that had missed the last merge window...	2024-05-21 13:11:44 -07:00
rw.h	…
slist.h	…
splice.c	…
splice.h	…
sqpoll.c	io_uring/sqpoll: ensure that normal task_work is also run timely	2024-05-21 13:41:14 -06:00
sqpoll.h	…
statx.c	…
statx.h	…
sync.c	…
sync.h	…
tctx.c	…
tctx.h	…
timeout.c	…
timeout.h	…
truncate.c	…
truncate.h	…
uring_cmd.c	…
uring_cmd.h	…
waitid.c	…
waitid.h	…
xattr.c	…
xattr.h	…