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Peter Zijlstra f8b298cc39 lockdep: Fix wait-type for empty stack
Even the very first lock can violate the wait-context check, consider
the various IRQ contexts.

Fixes: de8f5e4f2d ("lockdep: Introduce wait-type checks")
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Tested-by: Joerg Roedel <jroedel@suse.de>
Link: https://lore.kernel.org/r/20210617190313.256987481@infradead.org
2021-06-22 16:42:08 +02:00
arch locking/atomic: delete !ARCH_ATOMIC remnants 2021-05-26 13:20:52 +02:00
block
certs
crypto
Documentation locking/lockdep,doc: Improve readability of the block matrix 2021-05-31 10:14:54 +02:00
drivers
fs
include seqlock: Remove trailing semicolon in macros 2021-06-08 20:04:10 +02:00
init
ipc
kernel lockdep: Fix wait-type for empty stack 2021-06-22 16:42:08 +02:00
lib locking/selftests: Add a selftest for check_irq_usage() 2021-06-22 16:42:07 +02:00
LICENSES
mm
net
samples
scripts locking/atomics: atomic-instrumented: simplify ifdeffery 2021-05-26 13:20:52 +02:00
security
sound
tools selftests: futex: Add futex compare requeue test 2021-06-22 11:20:16 +02:00
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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.