732a27a089
- Two fixes for the futex syscall related to the timeout handling.
FUTEX_LOCK_PI does not support the FUTEX_CLOCK_REALTIME bit and because
it's not set the time namespace adjustment for clock MONOTONIC is
applied wrongly.
FUTEX_WAIT cannot support the FUTEX_CLOCK_REALTIME bit because its
always a relative timeout.
- Cleanups in the futex syscall entry points which became obvious when
the two timeout handling bugs were fixed.
- Cleanup of queued_write_lock_slowpath() as suggested by Linus
- Fixup of the smp_call_function_single_async() prototype
-----BEGIN PGP SIGNATURE-----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=bo8R
-----END PGP SIGNATURE-----
Merge tag 'locking-urgent-2021-05-09' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull locking fixes from Thomas Gleixner:
"A set of locking related fixes and updates:
- Two fixes for the futex syscall related to the timeout handling.
FUTEX_LOCK_PI does not support the FUTEX_CLOCK_REALTIME bit and
because it's not set the time namespace adjustment for clock
MONOTONIC is applied wrongly.
FUTEX_WAIT cannot support the FUTEX_CLOCK_REALTIME bit because its
always a relative timeout.
- Cleanups in the futex syscall entry points which became obvious
when the two timeout handling bugs were fixed.
- Cleanup of queued_write_lock_slowpath() as suggested by Linus
- Fixup of the smp_call_function_single_async() prototype"
* tag 'locking-urgent-2021-05-09' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
futex: Make syscall entry points less convoluted
futex: Get rid of the val2 conditional dance
futex: Do not apply time namespace adjustment on FUTEX_LOCK_PI
Revert 337f13046ff0 ("futex: Allow FUTEX_CLOCK_REALTIME with FUTEX_WAIT op")
locking/qrwlock: Cleanup queued_write_lock_slowpath()
smp: Fix smp_call_function_single_async prototype
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.