linux-stable/arch/microblaze
Mark Rutland e538c58491 microblaze: 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>
Tested-by: Michal Simek <michal.simek@xilinx.com>
Acked-by: Paul E. McKenney <paulmck@kernel.org>
Link: https://lore.kernel.org/r/20211129130653.2037928-8-mark.rutland@arm.com
2021-12-01 00:06:44 +01:00
..
boot microblaze: timer: Remove unused properties 2021-10-26 07:37:18 +02:00
configs microblaze: Remove noMMU code 2020-11-26 16:39:35 +01:00
include asm-generic: asm/syscall.h cleanup 2021-11-10 11:22:03 -08:00
kernel microblaze: Snapshot thread flags 2021-12-01 00:06:44 +01:00
lib microblaze: use generic strncpy/strnlen from_user 2021-07-27 23:01:13 +02:00
mm microblaze: use is_kernel_text() helper 2021-11-09 10:02:51 -08:00
pci PCI: Rename pcibios_add_device() to pcibios_device_add() 2021-09-21 15:26:09 -05:00
Kbuild kbuild: use more subdir- for visiting subdirectories while cleaning 2021-10-24 13:49:46 +09:00
Kconfig tracing: Refactor TRACE_IRQFLAGS_SUPPORT in Kconfig 2021-08-16 11:37:21 -04:00
Kconfig.debug tracing: Refactor TRACE_IRQFLAGS_SUPPORT in Kconfig 2021-08-16 11:37:21 -04:00
Kconfig.platform docs: kbuild: convert docs to ReST and rename to *.rst 2019-06-14 14:21:21 -06:00
Makefile kbuild: use more subdir- for visiting subdirectories while cleaning 2021-10-24 13:49:46 +09:00