Ming Lei 860e1c7f8b io_uring: complete request via task work in case of DEFER_TASKRUN ... So far io_req_complete_post() only covers DEFER_TASKRUN by completing request via task work when the request is completed from IOWQ. However, uring command could be completed from any context, and if io uring is setup with DEFER_TASKRUN, the command is required to be completed from current context, otherwise wait on IORING_ENTER_GETEVENTS can't be wakeup, and may hang forever. The issue can be observed on removing ublk device, but turns out it is one generic issue for uring command & DEFER_TASKRUN, so solve it in io_uring core code. Fixes: e6aeb2721d ("io_uring: complete all requests in task context") Cc: stable@vger.kernel.org Link: https://lore.kernel.org/linux-block/b3fc9991-4c53-9218-a8cc-5b4dd3952108@kernel.dk/ Reported-by: Jens Axboe <axboe@kernel.dk> Cc: Kanchan Joshi <joshi.k@samsung.com> Signed-off-by: Ming Lei <ming.lei@redhat.com> Signed-off-by: Jens Axboe <axboe@kernel.dk>		2023-04-14 06:38:23 -06:00
..
advise.c	io_uring: always go async for unsupported fadvise flags	2023-01-29 15:18:26 -07:00
advise.h	io_uring: split out fadvise/madvise operations	2022-07-24 18:39:11 -06:00
alloc_cache.h	io_uring: fix poll/netmsg alloc caches	2023-03-30 06:53:42 -06:00
cancel.c	io_uring/cancel: re-grab ctx mutex after finishing wait	2022-12-21 13:31:40 -07:00
cancel.h	io_uring: add sync cancelation API through io_uring_register()	2022-07-24 18:39:15 -06:00
epoll.c	io_uring: make io_kiocb_to_cmd() typesafe	2022-08-12 17:01:00 -06:00
epoll.h	io_uring: move epoll handler to its own file	2022-07-24 18:39:11 -06:00
fdinfo.c	capability: just use a 'u64' instead of a 'u32[2]' array	2023-03-01 10:01:22 -08:00
fdinfo.h	io_uring: move fdinfo helpers to its own file	2022-07-24 18:39:12 -06:00
filetable.c	io_uring/rsrc: fix null-ptr-deref in io_file_bitmap_get()	2023-03-22 11:04:55 -06:00
filetable.h	io_uring: kill hot path fixed file bitmap debug checks	2022-10-16 17:07:53 -06:00
fs.c	io_uring: for requests that require async, force it	2023-01-29 15:18:26 -07:00
fs.h	io_uring: split out filesystem related operations	2022-07-24 18:39:11 -06:00
io_uring.c	io_uring: complete request via task work in case of DEFER_TASKRUN	2023-04-14 06:38:23 -06:00
io_uring.h	io_uring: mark task TASK_RUNNING before handling resume/task work	2023-02-06 08:23:21 -07:00
io-wq.c	io_uring/io-wq: stop setting PF_NO_SETAFFINITY on io-wq workers	2023-03-08 08:48:13 -07:00
io-wq.h	io_uring: move list helpers to a separate file	2022-07-24 18:39:15 -06:00
kbuf.c	io_uring: fix memory leak when removing provided buffers	2023-04-01 16:52:12 -06:00
kbuf.h	io_uring: allow buffer recycling in READV	2022-09-21 10:30:43 -06:00
Makefile	io_uring: add zc notification infrastructure	2022-07-24 18:41:06 -06:00
msg_ring.c	io_uring/msg_ring: let target know allocated index	2023-03-16 07:16:56 -06:00
msg_ring.h	io_uring: get rid of double locking	2022-12-07 06:47:13 -07:00
net.c	io_uring/net: avoid sending -ECONNABORTED on repeated connection requests	2023-03-20 20:44:45 -06:00
net.h	io_uring/net: zerocopy sendmsg	2022-09-21 13:15:02 -06:00
nop.c	io_uring: kill extra io_uring_types.h includes	2022-07-24 18:39:14 -06:00
nop.h	io_uring: move nop into its own file	2022-07-24 18:39:11 -06:00
notif.c	io_uring: refactor req allocation	2023-01-29 15:17:41 -07:00
notif.h	io_uring: move zc reporting from the hot path	2022-11-21 07:38:31 -07:00
opdef.c	io_uring,audit: don't log IORING_OP_MADVISE	2023-02-10 16:00:30 -07:00
opdef.h	io_uring: Split io_issue_def struct	2023-01-29 15:17:41 -07:00
openclose.c	io_uring: always go async for unsupported open flags	2023-01-29 15:18:26 -07:00
openclose.h	io_uring: split out fixed file installation and removal	2022-07-24 18:39:16 -06:00
poll.c	io_uring/poll: clear single/double poll flags on poll arming	2023-03-28 07:09:01 -06:00
poll.h	io_uring/poll: allow some retries for poll triggering spuriously	2023-02-25 20:10:13 -07:00
refs.h	io_uring: make io_uring_types.h public	2022-07-24 18:39:14 -06:00
rsrc.c	io_uring/rsrc: fix null-ptr-deref in io_file_bitmap_get()	2023-03-22 11:04:55 -06:00
rsrc.h	io_uring/rsrc: fix rogue rsrc node grabbing	2023-03-29 09:23:46 -06:00
rw.c	for-6.3/iter-ubuf-2023-02-16	2023-02-20 14:03:57 -08:00
rw.h	io_uring/rw: don't lose partial IO result on fail	2022-09-21 13:15:02 -06:00
slist.h	io_uring: silence variable ‘prev’ set but not used warning	2023-03-09 10:10:58 -07:00
splice.c	io_uring: for requests that require async, force it	2023-01-29 15:18:26 -07:00
splice.h	io_uring: split out splice related operations	2022-07-24 18:39:11 -06:00
sqpoll.c	io_uring/sqpoll: Do not set PF_NO_SETAFFINITY on sqpoll threads	2023-03-15 06:50:59 -06:00
sqpoll.h	io_uring: make io_sqpoll_wait_sq return void	2023-01-29 15:17:40 -07:00
statx.c	io_uring: for requests that require async, force it	2023-01-29 15:18:26 -07:00
statx.h	io_uring: move statx handling to its own file	2022-07-24 18:39:11 -06:00
sync.c	io_uring: for requests that require async, force it	2023-01-29 15:18:26 -07:00
sync.h	io_uring: split out fs related sync/fallocate functions	2022-07-24 18:39:11 -06:00
tctx.c	io_uring: rename 'in_idle' to 'in_cancel'	2023-02-22 09:57:23 -07:00
tctx.h	io_uring: simplify __io_uring_add_tctx_node	2022-10-07 12:25:30 -06:00
timeout.c	io_uring: ease timeout flush locking requirements	2022-12-14 08:53:35 -07:00
timeout.h	io_uring: remove unused return from io_disarm_next	2022-09-21 13:15:01 -06:00
uring_cmd.c	io_uring/uring_cmd: ensure that device supports IOPOLL	2023-03-09 09:23:59 -07:00
uring_cmd.h	io_uring: move uring_cmd handling to its own file	2022-07-24 18:39:11 -06:00
xattr.c	io_uring: for requests that require async, force it	2023-01-29 15:18:26 -07:00
xattr.h	io_uring: move xattr related opcodes to its own file	2022-07-24 18:39:11 -06:00