Jens Axboe eac2ca2d68 io_uring: check if we need to reschedule during overflow flush ... In terms of normal application usage, this list will always be empty. And if an application does overflow a bit, it'll have a few entries. However, nothing obviously prevents syzbot from running a test case that generates a ton of overflow entries, and then flushing them can take quite a while. Check for needing to reschedule while flushing, and drop our locks and do so if necessary. There's no state to maintain here as overflows always prune from head-of-list, hence it's fine to drop and reacquire the locks at the end of the loop. Link: https://lore.kernel.org/io-uring/66ed061d.050a0220.29194.0053.GAE@google.com/ Reported-by: syzbot+5fca234bd7eb378ff78e@syzkaller.appspotmail.com Signed-off-by: Jens Axboe <axboe@kernel.dk>		2024-09-20 02:51:20 -06:00
..
advise.c	io_uring/advise: support 64-bit lengths	2024-06-16 14:54:55 -06:00
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: fix cancellation overwriting req->flags	2024-06-13 19:25:28 -06:00
epoll.c	io_uring: undeprecate epoll_ctl support	2023-05-26 20:22:41 -06:00
epoll.h
eventfd.c	io_uring/eventfd: move refs to refcount_t	2024-09-08 16:43:57 -06:00
eventfd.h	io_uring/eventfd: move eventfd handling to separate file	2024-06-16 14:54:55 -06:00
fdinfo.c	io_uring/rsrc: change ubuf->ubuf_end to length tracking	2024-09-15 09:15:22 -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_uring.c	io_uring: check if we need to reschedule during overflow flush	2024-09-20 02:51:20 -06:00
io_uring.h	io_uring: add support for batch wait timeout	2024-08-25 08:27:01 -06:00
io-wq.c	io_uring/io-wq: inherit cpuset of cgroup in io worker	2024-09-11 07:27:56 -06:00
io-wq.h	io_uring/io-wq: make io_wq_work flags atomic	2024-06-16 14:54:55 -06:00
kbuf.c	io_uring/kbuf: add support for incremental buffer consumption	2024-08-29 08:44:58 -06:00
kbuf.h	io_uring/kbuf: add support for incremental buffer consumption	2024-08-29 08:44:58 -06:00
Makefile	io_uring: add GCOV_PROFILE_URING Kconfig option	2024-08-30 10:52:02 -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: fix uninitialized use of target_req->flags	2024-07-25 08:41:35 -06:00
msg_ring.h	io_uring/msg_ring: add an alloc cache for io_kiocb entries	2024-06-24 08:39:55 -06:00
napi.c	io_uring: user registered clockid for wait timeouts	2024-08-25 08:27:01 -06:00
napi.h	io_uring/napi: postpone napi timeout adjustment	2024-08-25 08:27:01 -06:00
net.c	io_uring/kbuf: pass in 'len' argument for buffer commit	2024-08-29 08:44:51 -06:00
net.h	io_uring: Introduce IORING_OP_LISTEN	2024-06-19 07:57:21 -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: Fix probe of disabled operations	2024-06-19 08:58:00 -06:00
opdef.h	io_uring: Fix probe of disabled operations	2024-06-19 08:58:00 -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: keep multishot request NAPI timeout current	2024-07-30 06:18:58 -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: clean up a type in io_uring_register_get_file()	2024-09-16 12:04:10 -06:00
register.h	io_uring: clean up a type in io_uring_register_get_file()	2024-09-16 12:04:10 -06:00
rsrc.c	io_uring/rsrc: change ubuf->ubuf_end to length tracking	2024-09-15 09:15:22 -06:00
rsrc.h	io_uring/rsrc: change ubuf->ubuf_end to length tracking	2024-09-15 09:15:22 -06:00
rw.c	io_uring/rw: drop -EOPNOTSUPP check in __io_complete_rw_common()	2024-09-10 09:34:44 -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: do the napi busy poll outside the submission block	2024-09-16 20:24:37 -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	vfs: retire user_path_at_empty and drop empty arg from getname_flags	2024-06-05 17:03:57 +02:00
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: fix io_match_task must_hold	2024-07-24 08:01:49 -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: simplify io_uring_cmd return	2024-07-24 08:01:49 -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	vfs: retire user_path_at_empty and drop empty arg from getname_flags	2024-06-05 17:03:57 +02:00
xattr.h