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Linus Torvalds 3a4d319a8f for-6.12/io_uring-20240913
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Merge tag 'for-6.12/io_uring-20240913' of git://git.kernel.dk/linux

Pull io_uring updates from Jens Axboe:

 - NAPI fixes and cleanups (Pavel, Olivier)

 - Add support for absolute timeouts (Pavel)

 - Fixes for io-wq/sqpoll affinities (Felix)

 - Efficiency improvements for dealing with huge pages (Chenliang)

 - Support for a minwait mode, where the application essentially has two
   timouts - one smaller one that defines the batch timeout, and the
   overall large one similar to what we had before. This enables
   efficient use of batching based on count + timeout, while still
   working well with periods of less intensive workloads

 - Use ITER_UBUF for single segment sends

 - Add support for incremental buffer consumption. Right now each
   operation will always consume a full buffer. With incremental
   consumption, a recv/read operation only consumes the part of the
   buffer that it needs to satisfy the operation

 - Add support for GCOV for io_uring, to help retain a high coverage of
   test to code ratio

 - Fix regression with ocfs2, where an odd -EOPNOTSUPP wasn't correctly
   converted to a blocking retry

 - Add support for cloning registered buffers from one ring to another

 - Misc cleanups (Anuj, me)

* tag 'for-6.12/io_uring-20240913' of git://git.kernel.dk/linux: (35 commits)
  io_uring: add IORING_REGISTER_COPY_BUFFERS method
  io_uring/register: provide helper to get io_ring_ctx from 'fd'
  io_uring/rsrc: add reference count to struct io_mapped_ubuf
  io_uring/rsrc: clear 'slot' entry upfront
  io_uring/io-wq: inherit cpuset of cgroup in io worker
  io_uring/io-wq: do not allow pinning outside of cpuset
  io_uring/rw: drop -EOPNOTSUPP check in __io_complete_rw_common()
  io_uring/rw: treat -EOPNOTSUPP for IOCB_NOWAIT like -EAGAIN
  io_uring/sqpoll: do not allow pinning outside of cpuset
  io_uring/eventfd: move refs to refcount_t
  io_uring: remove unused rsrc_put_fn
  io_uring: add new line after variable declaration
  io_uring: add GCOV_PROFILE_URING Kconfig option
  io_uring/kbuf: add support for incremental buffer consumption
  io_uring/kbuf: pass in 'len' argument for buffer commit
  Revert "io_uring: Require zeroed sqe->len on provided-buffers send"
  io_uring/kbuf: move io_ring_head_to_buf() to kbuf.h
  io_uring/kbuf: add io_kbuf_commit() helper
  io_uring/kbuf: shrink nr_iovs/mode in struct buf_sel_arg
  io_uring: wire up min batch wake timeout
  ...
2024-09-16 13:29:00 +02:00
arch Power management updates for 6.12-rc1 2024-09-16 07:47:50 +02:00
block vfs-6.12.fallocate 2024-09-16 09:34:08 +02:00
certs
crypto
Documentation vfs-6.12.netfs 2024-09-16 12:13:31 +02:00
drivers vfs-6.12.file 2024-09-16 09:14:02 +02:00
fs Changes since last update: 2024-09-16 13:17:11 +02:00
include for-6.12/io_uring-20240913 2024-09-16 13:29:00 +02:00
init
io_uring for-6.12/io_uring-20240913 2024-09-16 13:29:00 +02:00
ipc
kernel vfs-6.12.misc 2024-09-16 08:35:09 +02:00
lib vfs-6.12.netfs 2024-09-16 12:13:31 +02:00
LICENSES
mm vfs-6.12.file 2024-09-16 09:14:02 +02:00
net vfs-6.12.file 2024-09-16 09:14:02 +02:00
rust
samples
scripts
security vfs-6.12.procfs 2024-09-16 09:36:59 +02:00
sound
tools vfs-6.12.misc 2024-09-16 08:35:09 +02:00
usr
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.cocciconfig
.editorconfig
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MAINTAINERS vfs-6.12.misc 2024-09-16 08:35:09 +02:00
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Linux kernel
============

There are several guides for kernel developers and users. These guides can
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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.