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torvalds-linux/io_uring
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Alexandre Negrel fc5ff25009 io_uring: use GFP_NOWAIT for overflow CQEs on legacy rings 
Allocate the overflowing CQE with GFP_NOWAIT instead of GFP_ATOMIC. This
changes causes allocations to fail earlier in out-of-memory situations,
rather than being deferred. Using GFP_ATOMIC allows a process to exceed
memory limits.

Closes: https://bugzilla.kernel.org/show_bug.cgi?id=220794
Signed-off-by: Alexandre Negrel <alexandre@negrel.dev>
Link: https://lore.kernel.org/io-uring/20251229201933.515797-1-alexandre@negrel.dev/
Signed-off-by: Jens Axboe <axboe@kernel.dk>
2025-12-30 18:49:31 -07:00
..
advise.c
io_uring: finish IOU_OK -> IOU_COMPLETE transition
2025-05-21 08:41:16 -06:00
advise.h
…
alloc_cache.c
…
alloc_cache.h
…
cancel.c
io_uring/cancel: move cancelation code from io_uring.c to cancel.c
2025-11-04 09:32:09 -07:00
cancel.h
io_uring/cancel: move cancelation code from io_uring.c to cancel.c
2025-11-04 09:32:09 -07:00
cmd_net.c
for-6.19/io_uring-20251201
2025-12-03 18:58:57 -08:00
epoll.c
io_uring: finish IOU_OK -> IOU_COMPLETE transition
2025-05-21 08:41:16 -06:00
epoll.h
…
eventfd.c
io_uring/eventfd: open code io_eventfd_grab()
2025-04-24 08:33:54 -06:00
eventfd.h
io_uring/eventfd: dedup signalling helpers
2025-04-24 08:33:54 -06:00
fdinfo.c
Merge branch 'io_uring-6.18' into for-6.19/io_uring
2025-11-13 07:26:37 -07:00
fdinfo.h
…
filetable.c
io_uring: correct __must_hold annotation in io_install_fixed_file
2025-10-23 07:25:07 -06:00
filetable.h
…
fs.c
io_uring: finish IOU_OK -> IOU_COMPLETE transition
2025-05-21 08:41:16 -06:00
fs.h
…
futex.c
io_uring/futex: move futexv owned status to struct io_futexv_data
2025-11-05 12:55:07 -07:00
futex.h
…
io_uring.c
io_uring: use GFP_NOWAIT for overflow CQEs on legacy rings
2025-12-30 18:49:31 -07:00
io_uring.h
io_uring: pre-calculate scq layout
2025-11-13 07:27:34 -07:00
io-wq.c
io_uring/io-wq: always retry worker create on ERESTART*
2025-12-04 07:18:02 -07:00
io-wq.h
io_uring/wq: avoid indirect do_work/free_work calls
2025-04-21 05:06:58 -06:00
kbuf.c
io_uring/kbuf: use WRITE_ONCE() for userspace-shared buffer ring fields
2025-12-05 09:52:02 -07:00
kbuf.h
io_uring/kbuf: remove obsolete buf_nr_pages and update comments
2025-11-20 13:23:05 -07:00
Kconfig
io_uring: make zcrx depend on CONFIG_IO_URING
2025-03-31 07:07:44 -06:00
Makefile
io_uring: introduce io_uring querying
2025-09-08 08:06:37 -06:00
memmap.c
io_uring: add helper calculating region byte size
2025-11-11 07:53:33 -07:00
memmap.h
io_uring: add helper calculating region byte size
2025-11-11 07:53:33 -07:00
mock_file.c
io_uring: convert io_create_mock_file() to FD_PREPARE()
2025-11-28 12:42:36 +01:00
msg_ring.c
io_uring: add wrapper type for io_req_tw_func_t arg
2025-11-03 08:31:26 -07:00
msg_ring.h
…
napi.c
…
napi.h
…
net.c
for-6.19/io_uring-20251201
2025-12-03 18:58:57 -08:00
net.h
…
nop.c
io_uring/nop: add support for IORING_SETUP_CQE_MIXED
2025-08-27 11:24:15 -06:00
nop.h
…
notif.c
io_uring: fix typos and comment wording
2025-11-05 08:21:43 -07:00
notif.h
…
opdef.c
io_uring: add support for IORING_SETUP_SQE_MIXED
2025-10-22 07:34:57 -06:00
opdef.h
io_uring: add support for IORING_SETUP_SQE_MIXED
2025-10-22 07:34:57 -06:00
openclose.c
io_uring: fix filename leak in __io_openat_prep()
2025-12-25 07:58:33 -07:00
openclose.h
io_uring: add support for IORING_OP_PIPE
2025-04-21 05:06:58 -06:00
poll.c
io_uring/poll: unify poll waitqueue entry and list removal
2025-12-05 10:23:28 -07:00
poll.h
io_uring: add wrapper type for io_req_tw_func_t arg
2025-11-03 08:31:26 -07:00
query.c
io_uring/query: drop unused io_handle_query_entry() ctx arg
2025-11-26 09:37:10 -07:00
query.h
io_uring/query: drop unused io_handle_query_entry() ctx arg
2025-11-26 09:37:10 -07:00
refs.h
io_uring: always do atomic put from iowq
2025-04-03 08:31:57 -06:00
register.c
io_uring/query: drop unused io_handle_query_entry() ctx arg
2025-11-26 09:37:10 -07:00
register.h
…
rsrc.c
io_uring: fix nr_segs calculation in io_import_kbuf
2025-12-17 07:35:42 -07:00
rsrc.h
io_uring/rsrc: refactor io_{un}account_mem() to take {user,mm}_struct param
2025-11-06 16:23:21 -07:00
rw.c
for-6.19/io_uring-20251201
2025-12-03 18:58:57 -08:00
rw.h
io_uring: add wrapper type for io_req_tw_func_t arg
2025-11-03 08:31:26 -07:00
slist.h
io_uring/slist: remove unused wq list splice helpers
2025-11-03 10:51:39 -07:00
splice.c
io_uring: don't include filetable.h in io_uring.h
2025-09-08 13:20:46 -06:00
splice.h
…
sqpoll.c
Merge branch 'io_uring-6.18' into for-6.19/io_uring
2025-11-13 07:26:37 -07:00
sqpoll.h
io_uring/sqpoll: switch away from getrusage() for CPU accounting
2025-10-22 10:51:20 -06:00
statx.c
io_uring: finish IOU_OK -> IOU_COMPLETE transition
2025-05-21 08:41:16 -06:00
statx.h
…
sync.c
io_uring: finish IOU_OK -> IOU_COMPLETE transition
2025-05-21 08:41:16 -06:00
sync.h
…
tctx.c
io_uring/wq: avoid indirect do_work/free_work calls
2025-04-21 05:06:58 -06:00
tctx.h
…
timeout.c
io_uring: add wrapper type for io_req_tw_func_t arg
2025-11-03 08:31:26 -07:00
timeout.h
io_uring/timeout: don't export link t-out disarm helper
2025-05-06 10:11:23 -06:00
truncate.c
io_uring: finish IOU_OK -> IOU_COMPLETE transition
2025-05-21 08:41:16 -06:00
truncate.h
…
uring_cmd.c
io_uring/uring_cmd: avoid double indirect call in task work dispatch
2025-11-03 08:31:26 -07:00
uring_cmd.h
io_uring/cmd: remove struct io_uring_cmd_data
2025-07-18 12:34:56 -06:00
waitid.c
Merge branch 'io_uring-6.18' into for-6.19/io_uring
2025-11-13 07:26:37 -07:00
waitid.h
…
xattr.c
io_uring: finish IOU_OK -> IOU_COMPLETE transition
2025-05-21 08:41:16 -06:00
xattr.h
…
zcrx.c
io_uring/zcrx: share an ifq between rings
2025-11-13 11:19:37 -07:00
zcrx.h
io_uring/zcrx: count zcrx users
2025-11-13 11:19:37 -07:00