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Peter Zijlstra 2ab9d83026 perf/aux: Fix AUX buffer serialization 
Ole reported that event->mmap_mutex is strictly insufficient to
serialize the AUX buffer, add a per RB mutex to fully serialize it.

Note that in the lock order comment the perf_event::mmap_mutex order
was already wrong, that is, it nesting under mmap_lock is not new with
this patch.

Fixes: 45bfb2e504 ("perf: Add AUX area to ring buffer for raw data streams")
Reported-by: Ole <ole@binarygecko.com>
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Signed-off-by: Ingo Molnar <mingo@kernel.org>
2024-09-04 18:22:56 +02:00
arch perf/x86/intel: Limit the period on Haswell 2024-08-25 16:49:05 +02:00
block block: Read max write zeroes once for __blkdev_issue_write_zeroes() 2024-08-19 09:48:59 -06:00
certs
crypto
Documentation workqueue: Fixes for v6.11-rc4 2024-08-24 10:35:57 +08:00
drivers s390 updates for 6.11-rc5 2024-08-25 12:05:23 +12:00
fs bcachefs fixes for 6.11-rc5, v2 2024-08-25 17:20:48 +12:00
include SCSI fixes on 20240824 2024-08-25 12:00:16 +12:00
init Rust fixes for v6.11 2024-08-16 11:24:06 -07:00
io_uring io_uring/kbuf: sanitize peek buffer setup 2024-08-21 07:16:38 -06:00
ipc sysctl: treewide: constify the ctl_table argument of proc_handlers 2024-07-24 20:59:29 +02:00
kernel perf/aux: Fix AUX buffer serialization 2024-09-04 18:22:56 +02:00
lib bcachefs fixes for 6.11-rc4 2024-08-17 09:46:10 -07:00
LICENSES
mm 16 hotfixes. All except one are for MM. 10 of these are cc:stable and 2024-08-17 19:50:16 -07:00
net NFS Client Bugfixes for Linux 6.11-rc 2024-08-24 09:03:25 +08:00
rust Rust fixes for v6.11 2024-08-16 11:24:06 -07:00
samples treewide: remove unnecessary <linux/version.h> inclusion 2024-08-12 18:36:44 +09:00
scripts Kbuild fixes for v6.11 (2nd) 2024-08-23 07:43:15 +08:00
security KEYS: trusted: dcp: fix leak of blob encryption key 2024-08-15 22:01:14 +03:00
sound Kbuild fixes for v6.11 (2nd) 2024-08-23 07:43:15 +08:00
tools Including fixes from bluetooth and netfilter. 2024-08-23 07:47:01 +08:00
usr
virt KVM: x86: Disallow read-only memslots for SEV-ES and SEV-SNP (and TDX) 2024-08-14 12:28:24 -04:00
.clang-format
.cocciconfig
.editorconfig
.get_maintainer.ignore
.gitattributes
.gitignore kbuild: add script and target to generate pacman package 2024-07-22 01:24:22 +09:00
.mailmap mailmap: update entry for David Heidelberg 2024-08-07 18:33:56 -07:00
.rustfmt.toml
COPYING
CREDITS
Kbuild
Kconfig
MAINTAINERS SCSI fixes on 20240824 2024-08-25 12:00:16 +12:00
Makefile Linux 6.11-rc5 2024-08-25 19:07:11 +12:00
README

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.