kernel/linux.git/io_uring/slist.h, branch v7.0.10

io_uring: Add SPDX id lines to remaining source files

2026-02-04T14:23:45+00:00

Some io_uring files are missing SPDX-License-Identifier lines. Add lines with GPL-2.0 license IDs to these files. Signed-off-by: Tim Bird Signed-off-by: Jens Axboe

io_uring: IOPOLL polling improvements

2025-12-28T22:54:45+00:00

io_uring manages issued and pending IOPOLL read/write requests in a singly linked list. One downside of that is that individual items cannot easily be removed from that list, and as a result, io_uring will only complete a completed request N in that list if 0..N-1 are also complete. For homogenous IO this isn't necessarily an issue, but if different devices are involved in polling in the same ring, or if disparate IO from the same device is being polled for, this can defer completion of some requests unnecessarily. Move to a doubly linked list for iopoll completions instead, making it possible to easily complete whatever requests that were polled done successfully. Co-developed-by: Fengnan Chang Link: https://lore.kernel.org/io-uring/20251210085501.84261-1-changfengnan@bytedance.com/ Signed-off-by: Jens Axboe

io_uring/slist: remove unused wq list splice helpers

2025-11-03T17:51:39+00:00

Nobody is using those helpers anymore, get rid of them. Signed-off-by: Jens Axboe

io_uring: silence variable ‘prev’ set but not used warning

2023-03-09T17:10:58+00:00

If io_uring.o is built with W=1, it triggers a warning: io_uring/io_uring.c: In function ‘__io_submit_flush_completions’: io_uring/io_uring.c:1502:40: warning: variable ‘prev’ set but not used [-Wunused-but-set-variable] 1502 | struct io_wq_work_node *node, *prev; | ^~~~ which is due to the wq_list_for_each() iterator always keeping a 'prev' variable. Most users need this to remove an entry from a list, for example, but __io_submit_flush_completions() never does that. Add a basic helper that doesn't track prev instead, and use that in that function. Reported-by: Vincenzo Palazzo Reviewed-by: Vincenzo Palazzo Signed-off-by: Jens Axboe

io_uring: remove unused wq_list_merge

2023-02-22T16:57:23+00:00

There are no users of wq_list_merge, kill it. Signed-off-by: Pavel Begunkov Link: https://lore.kernel.org/r/5f9ad0301949213230ad9000a8359d591aae615a.1677002255.git.asml.silence@gmail.com Signed-off-by: Jens Axboe

io_uring: move list helpers to a separate file

2022-07-25T00:39:15+00:00

It's annoying to have io-wq.h as a dependency every time we want some of struct io_wq_work_list helpers, move them into a separate file. Signed-off-by: Pavel Begunkov Link: https://lore.kernel.org/r/c1d891ce12b30767d1d2a3b7db2ca3abc1ecc4a2.1655802465.git.asml.silence@gmail.com Signed-off-by: Jens Axboe