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Linus Torvalds b02c520fee workqueue: Changes for v6.11 
- Lai fixed a bug where CPU hotplug and workqueue attribute changes race
   leaving some workqueues not fully updated. This involved refactoring and
   changing how online CPUs are tracked. The resulting code is cleaner.
 
 - Workqueue watchdog touch operation was causing too much cacheline
   contention on very large machines. Nicholas improved scalabililty by
   avoiding unnecessary global updates.
 
 - Code cleanups and minor rescuer behavior improvement.
 
 - The last commit 58629d4871 ("workqueue: Always queue work items to the
   newest PWQ for order workqueues") is a cherry-picked straggler commit from
   for-6.10-fixes, a fix for a bug which may not actually trigger.
   Unfortunately, maybe because for-6.10-fixes was branched off at a
   different point from for-6.11, I couldn't persuade git request-pull to
   generate clean diffstat if pulled into for-6.11.
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Merge tag 'wq-for-6.11' of git://git.kernel.org/pub/scm/linux/kernel/git/tj/wq

Pull workqueue updates from Tejun Heo:

 - Lai fixed a bug where CPU hotplug and workqueue attribute changes
   race leaving some workqueues not fully updated. This involved
   refactoring and changing how online CPUs are tracked. The resulting
   code is cleaner.

 - Workqueue watchdog touch operation was causing too much cacheline
   contention on very large machines. Nicholas improved scalabililty by
   avoiding unnecessary global updates.

 - Code cleanups and minor rescuer behavior improvement.

 - The last commit 58629d4871 ("workqueue: Always queue work items to
   the newest PWQ for order workqueues") is a cherry-picked straggler
   commit from for-6.10-fixes, a fix for a bug which may not actually
   trigger.

* tag 'wq-for-6.11' of git://git.kernel.org/pub/scm/linux/kernel/git/tj/wq: (24 commits)
  workqueue: Always queue work items to the newest PWQ for order workqueues
  workqueue: Rename wq_update_pod() to unbound_wq_update_pwq()
  workqueue: Remove the arguments @hotplug_cpu and @online from wq_update_pod()
  workqueue: Remove the argument @cpu_going_down from wq_calc_pod_cpumask()
  workqueue: Remove the unneeded cpumask empty check in wq_calc_pod_cpumask()
  workqueue: Remove cpus_read_lock() from apply_wqattrs_lock()
  workqueue: Simplify wq_calc_pod_cpumask() with wq_online_cpumask
  workqueue: Add wq_online_cpumask
  workqueue: Init rescuer's affinities as the wq's effective cpumask
  workqueue: Put PWQ allocation and WQ enlistment in the same lock C.S.
  workqueue: Move kthread_flush_worker() out of alloc_and_link_pwqs()
  workqueue: Make rescuer initialization as the last step of the creation of a new wq
  workqueue: Register sysfs after the whole creation of the new wq
  workqueue: Simplify goto statement
  workqueue: Update cpumasks after only applying it successfully
  workqueue: Improve scalability of workqueue watchdog touch
  workqueue: wq_watchdog_touch is always called with valid CPU
  workqueue: Remove useless pool->dying_workers
  workqueue: Detach workers directly in idle_cull_fn()
  workqueue: Don't bind the rescuer in the last working cpu
  ...
2024-07-15 16:51:22 -07:00
arch ARM: Provide one-byte cmpxchg emulation 2024-07-15 15:19:36 -07:00
block for-6.11/block-20240710 2024-07-15 14:20:22 -07:00
certs kbuild: use $(src) instead of $(srctree)/$(src) for source directory 2024-05-10 04:34:52 +09:00
crypto This push fixes a bug in the new ecc P521 code as well as a buggy 2024-05-20 08:47:54 -07:00
Documentation cgroup: Changes for v6.11 2024-07-15 16:41:32 -07:00
drivers Updates for timers, timekeeping and related functionality: 2024-07-15 15:03:09 -07:00
fs for-6.11/block-20240710 2024-07-15 14:20:22 -07:00
include cgroup: Changes for v6.11 2024-07-15 16:41:32 -07:00
init gcc: disable '-Warray-bounds' for gcc-9 2024-06-15 10:43:04 -07:00
io_uring for-6.11/block-20240710 2024-07-15 14:20:22 -07:00
ipc ipc: mqueue: remove assignment from IS_ERR argument 2024-07-09 06:47:40 +02:00
kernel workqueue: Changes for v6.11 2024-07-15 16:51:22 -07:00
lib Updates for timers, timekeeping and related functionality: 2024-07-15 15:03:09 -07:00
LICENSES LICENSES: Add the copyleft-next-0.3.1 license 2022-11-08 15:44:01 +01:00
mm vfs-6.11.mount.api 2024-07-15 11:31:32 -07:00
net for-6.11/io_uring-20240714 2024-07-15 13:49:10 -07:00
rust for-6.11/block-20240710 2024-07-15 14:20:22 -07:00
samples tracing/treewide: Remove second parameter of __assign_str() 2024-05-22 20:14:47 -04:00
scripts kbuild: rpm-pkg: avoid the warnings with dtb's listed twice 2024-07-15 03:13:32 +09:00
security integrity-v6.10-fix 2024-07-05 16:21:54 -07:00
sound Updates for timers, timekeeping and related functionality: 2024-07-15 15:03:09 -07:00
tools cgroup: Changes for v6.11 2024-07-15 16:41:32 -07:00
usr kbuild: use $(src) instead of $(srctree)/$(src) for source directory 2024-05-10 04:34:52 +09:00
virt KVM fixes for 6.10 2024-06-21 08:03:55 -04:00
.clang-format clang-format: Update with v6.7-rc4's for_each macro list 2023-12-08 23:54:38 +01:00
.cocciconfig
.editorconfig .editorconfig: remove trim_trailing_whitespace option 2024-06-13 16:47:52 +02:00
.get_maintainer.ignore Add Jeff Kirsher to .get_maintainer.ignore 2024-03-08 11:36:54 +00:00
.gitattributes .gitattributes: set diff driver for Rust source code files 2023-05-31 17:48:25 +02:00
.gitignore kbuild: create a list of all built DTB files 2024-02-19 18:20:39 +09:00
.mailmap for-6.11/block-20240710 2024-07-15 14:20:22 -07:00
.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 pci-v6.10-fixes-2 2024-07-05 12:33:00 -07:00
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 cgroup: Changes for v6.11 2024-07-15 16:41:32 -07:00
Makefile Linux 6.10 2024-07-14 15:43:32 -07:00
README README: Fix spelling 2024-03-18 03:36:32 -06:00

README 

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.