Jens Axboe 592b480543 io_uring: remove looping around handling traditional task_work ... A previous commit added looping around handling traditional task_work as an optimization, and while that may seem like a good idea, it's also possible to run into application starvation doing so. If the task_work generation is bursty, we can get very deep task_work queues, and we can end up looping in here for a very long time. One immediately observable problem with that is handling network traffic using provided buffers, where flooding incoming traffic and looping task_work handling will very quickly lead to buffer starvation as we keep running task_work rather than returning to the application so it can handle the associated CQEs and also provide buffers back. Fixes: 3a0c037b0e ("io_uring: batch task_work") Signed-off-by: Jens Axboe <axboe@kernel.dk>		2024-02-08 13:27:06 -07:00
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advise.c	io_uring: always go async for unsupported fadvise flags	2023-01-29 15:18:26 -07:00
advise.h
alloc_cache.h	io_uring: use mempool KASAN hook	2023-12-29 11:58:41 -08:00
cancel.c	io_uring/cancel: don't default to setting req->work.cancel_seq	2024-02-08 13:27:06 -07:00
cancel.h	io_uring/cancel: don't default to setting req->work.cancel_seq	2024-02-08 13:27:06 -07:00
epoll.c	io_uring: undeprecate epoll_ctl support	2023-05-26 20:22:41 -06:00
epoll.h
fdinfo.c	io_uring/fdinfo: remove need for sqpoll lock for thread/pid retrieval	2023-11-15 06:35:46 -07:00
fdinfo.h
filetable.c	io_uring: drop any code related to SCM_RIGHTS	2023-12-19 12:36:34 -07:00
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: add support for vectored futex waits	2023-09-29 02:37:08 -06:00
futex.h	io_uring: add support for vectored futex waits	2023-09-29 02:37:08 -06:00
io_uring.c	io_uring: remove looping around handling traditional task_work	2024-02-08 13:27:06 -07:00
io_uring.h	io_uring: mark the need to lock/unlock the ring as unlikely	2024-02-08 13:27:06 -07:00
io-wq.c	io-wq: fully initialize wqe before calling cpuhp_state_add_instance_nocalls()	2023-10-05 14:11:18 -06:00
io-wq.h	io_uring: break out of iowq iopoll on teardown	2023-09-07 09:02:27 -06:00
kbuf.c	io_uring/kbuf: cleanup passing back cflags	2024-02-08 13:27:06 -07:00
kbuf.h	io_uring/kbuf: cleanup passing back cflags	2024-02-08 13:27:06 -07:00
Makefile	io_uring/register: move io_uring_register(2) related code to register.c	2023-12-19 08:54:20 -07:00
msg_ring.c	io_uring: use io_file_from_index in io_msg_grab_file	2023-06-20 09:36:22 -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: fix sr->len for IORING_OP_RECV with MSG_WAITALL and buffers	2024-02-01 06:42:36 -07:00
net.h	io_uring: Add KASAN support for alloc_caches	2023-04-03 07:16:14 -06:00
nop.c
nop.h
notif.c	io_uring/notif: add constant for ubuf_info flags	2023-04-15 14:21:04 -06:00
notif.h	io_uring/notif: add constant for ubuf_info flags	2023-04-15 14:21:04 -06:00
opdef.c	io_uring: enable audit and restrict cred override for IORING_OP_FIXED_FD_INSTALL	2024-01-23 15:25:14 -07:00
opdef.h	io_uring/rw: mark readv/writev as vectored in the opcode definition	2023-09-21 12:00:46 -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: add io_file_can_poll() helper	2024-02-08 13:27:06 -07:00
poll.h	io_uring/rw: ensure poll based multishot read retries appropriately	2024-01-28 20:37:11 -07:00
refs.h
register.c	io_uring/register: guard compat syscall with CONFIG_COMPAT	2024-01-17 09:45:18 -07:00
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: drop any code related to SCM_RIGHTS	2023-12-19 12:36:34 -07:00
rsrc.h	io_uring/rsrc: improve code generation for fixed file assignment	2024-01-11 13:37:31 -07:00
rw.c	io_uring/rw: remove dead file == NULL check	2024-02-08 13:27:06 -07:00
rw.h	io_uring/rw: add separate prep handler for fixed read/write	2023-11-06 07:43:16 -07:00
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/fdinfo: remove need for sqpoll lock for thread/pid retrieval	2023-11-15 06:35:46 -07:00
sqpoll.h	io_uring/sqpoll: fix io-wq affinity when IORING_SETUP_SQPOLL is used	2023-08-16 13:40:28 -06:00
statx.c	io_uring: for requests that require async, force it	2023-01-29 15:18:26 -07:00
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: never overflow io_aux_cqe	2023-08-11 10:42:57 -06:00
timeout.h	io_uring: remove unused return from io_disarm_next	2022-09-21 13:15:01 -06:00
uring_cmd.c	for-6.8/io_uring-2024-01-08	2024-01-11 14:19:23 -08:00
uring_cmd.h	io_uring: Remove unnecessary BUILD_BUG_ON	2023-05-04 08:19:05 -06:00
waitid.c	io_uring: add IORING_OP_WAITID support	2023-09-21 12:04:45 -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