Mark Rutland 6ce895128b entry: 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 <[email protected]>
Signed-off-by: Thomas Gleixner <[email protected]>
Acked-by: Paul E. McKenney <[email protected]>
Link: https://lore.kernel.org/r/[email protected]

2021-12-01 00:06:43 +01:00

..

common.c

entry: Snapshot thread flags

2021-12-01 00:06:43 +01:00

common.h

kernel: Implement selective syscall userspace redirection

2020-12-02 15:07:56 +01:00

kvm.c

entry: Snapshot thread flags

2021-12-01 00:06:43 +01:00

Makefile

kernel: Implement selective syscall userspace redirection

2020-12-02 15:07:56 +01:00

syscall_user_dispatch.c

signal: Replace force_fatal_sig with force_exit_sig when in doubt

2021-11-19 09:15:58 -06:00