linux-stable/arch/openrisc
Mark Rutland 4ea7ce0a79 openrisc: Snapshot thread flags
Some thread flags can be set remotely, and so even when IRQs are disabled,
the flags can change under our feet. Generally this is unlikely to cause a
problem in practice, but it is somewhat unsound, and KCSAN will
legitimately warn that there is a data race.

To avoid such issues, a snapshot of the flags has to be taken prior to
using them. Some places already use READ_ONCE() for that, others do not.

Convert them all to the new flag accessor helpers.

Signed-off-by: Mark Rutland <mark.rutland@arm.com>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Acked-by: Stafford Horne <shorne@gmail.com>
Acked-by: Paul E. McKenney <paulmck@kernel.org>
Cc: Jonas Bonn <jonas@southpole.se>
Cc: Stefan Kristiansson <stefan.kristiansson@saunalahti.fi>
Link: https://lore.kernel.org/r/20211129130653.2037928-9-mark.rutland@arm.com
2021-12-01 00:06:44 +01:00
..
boot openrisc/litex: Add ethernet device 2021-08-31 22:41:46 +09:00
configs openrisc/litex: Update defconfig 2021-08-31 22:41:46 +09:00
include asm-generic: asm/syscall.h cleanup 2021-11-10 11:22:03 -08:00
kernel openrisc: Snapshot thread flags 2021-12-01 00:06:44 +01:00
lib openrisc: rename or32 code & comments to or1k 2021-08-05 10:53:59 +09:00
mm Merge branch 'exit-cleanups-for-v5.16' of git://git.kernel.org/pub/scm/linux/kernel/git/ebiederm/user-namespace 2021-11-10 16:15:54 -08:00
Kbuild kbuild: use more subdir- for visiting subdirectories while cleaning 2021-10-24 13:49:46 +09:00
Kconfig irq: remove handle_domain_{irq,nmi}() 2021-10-26 10:13:31 +01:00
Kconfig.debug treewide: Add SPDX license identifier - Makefile/Kconfig 2019-05-21 10:50:46 +02:00
Makefile kbuild: use more subdir- for visiting subdirectories while cleaning 2021-10-24 13:49:46 +09:00