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Marco Elver d93414e375 x86/qspinlock, kcsan: Instrument barrier of pv_queued_spin_unlock()
If CONFIG_PARAVIRT_SPINLOCKS=y, queued_spin_unlock() is implemented
using pv_queued_spin_unlock() which is entirely inline asm based. As
such, we do not receive any KCSAN barrier instrumentation via regular
atomic operations.

Add the missing KCSAN barrier instrumentation for the
CONFIG_PARAVIRT_SPINLOCKS case.

Signed-off-by: Marco Elver <elver@google.com>
Signed-off-by: Paul E. McKenney <paulmck@kernel.org>
2021-12-09 16:42:28 -08:00
Documentation kcsan: Document modeling of weak memory 2021-12-09 16:42:27 -08:00
LICENSES
arch x86/qspinlock, kcsan: Instrument barrier of pv_queued_spin_unlock() 2021-12-09 16:42:28 -08:00
block blk-mq: fix filesystem I/O request allocation 2021-11-12 09:31:13 -07:00
certs
crypto Update to zstd-1.4.10 2021-11-13 15:32:30 -08:00
drivers arch/sh updates for 5.16 2021-11-14 11:37:49 -08:00
fs Minor tweaks for 5.16: 2021-11-14 12:18:22 -08:00
include asm-generic/bitops, kcsan: Add instrumentation for barriers 2021-12-09 16:42:28 -08:00
init kcsan: Remove redundant zero-initialization of globals 2021-12-09 16:42:26 -08:00
ipc
kernel kcsan: selftest: Add test case to check memory barrier instrumentation 2021-12-09 16:42:27 -08:00
lib kcsan: Add core support for a subset of weak memory modeling 2021-12-09 16:42:26 -08:00
mm Revert "mm: shmem: don't truncate page if memory failure happens" 2021-11-13 12:03:03 -08:00
net One notable change here is that async creates and unlinks introduced 2021-11-13 11:31:07 -08:00
samples
scripts locking/atomics, kcsan: Add instrumentation for barriers 2021-12-09 16:42:27 -08:00
security net,lsm,selinux: revert the security_sctp_assoc_established() hook 2021-11-12 12:07:02 -05:00
sound sound fixes for 5.16-rc1 2021-11-12 12:17:30 -08:00
tools A single fix for static calls to make the trampoline patching more robust 2021-11-14 10:30:17 -08:00
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MAINTAINERS - Add the model number of a new, Raptor Lake CPU, to intel-family.h 2021-11-14 09:29:03 -08:00
Makefile Linux 5.16-rc1 2021-11-14 13:56:52 -08:00
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 Restructured Text 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.