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Pavel Begunkov 06521ac048 io_uring/waitid: don't abuse io_tw_state
struct io_tw_state is managed by core io_uring, and opcode handling code
must never try to cheat and create their own instances, it's plain
incorrect.

io_waitid_complete() attempts exactly that outside of the task work
context, and even though the ring is locked, there would be no one to
reap the requests from the defer completion list. It only works now
because luckily it's called before io_uring_try_cancel_uring_cmd(),
which flushes completions.

Fixes: f31ecf671d ("io_uring: add IORING_OP_WAITID support")
Signed-off-by: Pavel Begunkov <asml.silence@gmail.com>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
2025-02-12 07:30:50 -07:00
arch powerpc updates for 6.14 2025-01-20 21:40:19 -08:00
block for-6.14/io_uring-20250119 2025-01-20 20:27:33 -08:00
certs sign-file,extract-cert: use pkcs11 provider for OPENSSL MAJOR >= 3 2024-09-20 19:52:48 +03:00
crypto crypto: rsassa-pkcs1 - Copy source data for SG list 2024-12-10 13:34:05 +08:00
Documentation powerpc updates for 6.14 2025-01-20 21:40:19 -08:00
drivers powerpc updates for 6.14 2025-01-20 21:40:19 -08:00
fs for-6.14/block-20250118 2025-01-20 19:38:46 -08:00
include io_uring: get rid of alloc cache init_once handling 2025-01-23 11:32:28 -07:00
init - The series "resource: A couple of cleanups" from Andy Shevchenko 2024-11-25 16:09:48 -08:00
io_uring io_uring/waitid: don't abuse io_tw_state 2025-02-12 07:30:50 -07:00
ipc - The series "resource: A couple of cleanups" from Andy Shevchenko 2024-11-25 16:09:48 -08:00
kernel for-6.14/block-20250118 2025-01-20 19:38:46 -08:00
lib vfs-6.14-rc1.misc 2025-01-20 09:40:49 -08:00
LICENSES LICENSES: add 0BSD license text 2024-09-01 20:43:24 -07:00
mm vfs-6.14-rc1.libfs 2025-01-20 11:00:53 -08:00
net netdev: avoid CFI problems with sock priv helpers 2025-01-16 13:15:40 +01:00
rust for-6.14/block-20250118 2025-01-20 19:38:46 -08:00
samples vfs-6.14-rc1.mount.v2 2025-01-20 10:44:51 -08:00
scripts scripts/decode_stacktrace.sh: fix decoding of lines with an additional info 2025-01-12 19:03:34 -08:00
security vfs-6.14-rc1.misc 2025-01-20 09:40:49 -08:00
sound sound fixes for 6.13-final 2025-01-14 09:54:57 -08:00
tools powerpc updates for 6.14 2025-01-20 21:40:19 -08:00
usr kbuild: Drop support for include/asm-<arch> in headers_check.pl 2024-12-21 11:43:17 +09:00
virt VFIO updates for v6.13 2024-11-27 12:57:03 -08:00
.clang-format clang-format: Update with v6.11-rc1's for_each macro list 2024-08-02 13:20:31 +02:00
.clippy.toml rust: enable Clippy's check-private-items 2024-10-07 21:39:57 +02:00
.cocciconfig scripts: add Linux .cocciconfig for coccinelle 2016-07-22 12:13:39 +02:00
.editorconfig .editorconfig: remove trim_trailing_whitespace option 2024-06-13 16:47:52 +02:00
.get_maintainer.ignore MAINTAINERS: Retire Ralf Baechle 2024-11-12 15:48:59 +01:00
.gitattributes .gitattributes: set diff driver for Rust source code files 2023-05-31 17:48:25 +02:00
.gitignore Kbuild updates for v6.13 2024-11-30 13:41:50 -08:00
.mailmap 7 singleton hotfixes. 6 are MM. 2 are cc:stable and the remainder 2025-01-16 21:24:34 -08:00
.rustfmt.toml rust: add .rustfmt.toml 2022-09-28 09:02:20 +02:00
COPYING COPYING: state that all contributions really are covered by this file 2020-02-10 13:32:20 -08:00
CREDITS MAINTAINERS: remove Andy Gospodarek from bonding 2025-01-09 08:30:01 -08:00
Kbuild Kbuild updates for v6.1 2022-10-10 12:00:45 -07:00
Kconfig kbuild: ensure full rebuild when the compiler is updated 2020-05-12 13:28:33 +09:00
MAINTAINERS powerpc updates for 6.14 2025-01-20 21:40:19 -08:00
Makefile Linux 6.13 2025-01-19 15:51:45 -08:00
README README: Fix spelling 2024-03-18 03:36:32 -06:00

Linux kernel
============

There are several guides for kernel developers and users. These guides can
be rendered in a number of formats, like HTML and PDF. Please read
Documentation/admin-guide/README.rst first.

In order to build the documentation, use ``make htmldocs`` or
``make pdfdocs``.  The formatted documentation can also be read online at:

    https://www.kernel.org/doc/html/latest/

There are various text files in the Documentation/ subdirectory,
several of them using the reStructuredText markup notation.

Please read the Documentation/process/changes.rst file, as it contains the
requirements for building and running the kernel, and information about
the problems which may result by upgrading your kernel.