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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advise.c
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
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/filetable: don't unnecessarily clear/reset bitmap	2024-05-08 08:27:45 -06:00
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-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: break out of iowq iopoll on teardown	2023-09-07 09:02:27 -06:00
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	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: don't attempt to mmap larger than what the user asks for	2024-05-29 09:53:14 -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: cleanup posting to IOPOLL vs !IOPOLL ring	2024-05-01 17:13:51 -06:00
msg_ring.h
napi.c	io_uring/napi: fix timeout calculation	2024-06-04 07:32:45 -06:00
napi.h	io_uring: add register/unregister napi function	2024-02-09 11:54:32 -07:00
net.c	io_uring/net: assign kmsg inq/flags before buffer selection	2024-05-30 14:04:37 -06:00
net.h	io_uring/alloc_cache: switch to array based caching	2024-04-15 08:10:25 -06:00
nop.c	io_uring: support to inject result for NOP	2024-05-10 06:09:45 -06:00
nop.h
notif.c	io_uring/notif: disable LAZY_WAKE for linked notifs	2024-04-30 13:06:27 -06:00
notif.h	io_uring/notif: implement notification stacking	2024-04-22 19:31:18 -06:00
opdef.c	io_uring/rw: Free iovec before cleaning async data	2024-05-30 08:33:01 -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 possible deadlock in io_register_iowq_max_workers()	2024-06-04 07:39:17 -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	Assorted commits that had missed the last merge window...	2024-05-21 13:11:44 -07:00
rw.h	io_uring/alloc_cache: switch to array based caching	2024-04-15 08:10:25 -06:00
slist.h
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: ensure that normal task_work is also run timely	2024-05-21 13:41:14 -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
statx.h
sync.c
sync.h
tctx.c
tctx.h
timeout.c	io_uring/timeout: remove duplicate initialization of the io_timeout list.	2024-04-15 08:10:27 -06:00
timeout.h
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