linux/arch/parisc
Dave Anglin 7e992711dd parisc: Don't disable interrupts in cmpxchg and futex operations
I no longer think interrupts can be disabled in the futex and cmpxchg
operations because of COW breaks.  This not ideal but I suspect it's the
best we can do.

For the cmpxchg operations in syscall.S, we rely on the code to not
schedule off the gateway page.  For the futex, I added code to disable
preemption.

So far, I haven't seen the warnings with the attached change but the
change is only lightly tested.

Signed-off-by: Dave Anglin <dave.anglin@bell.net>
Signed-off-by: Helge Deller <deller@gmx.de>
2021-11-04 11:21:20 +01:00
..
boot parisc: decompressor: clean up Makefile 2021-11-01 07:36:01 +01:00
configs parisc: Update defconfigs 2021-11-01 07:36:02 +01:00
include parisc: Don't disable interrupts in cmpxchg and futex operations 2021-11-04 11:21:20 +01:00
kernel parisc: Don't disable interrupts in cmpxchg and futex operations 2021-11-04 11:21:20 +01:00
lib parisc: mark xchg functions notrace 2021-11-01 07:36:00 +01:00
math-emu parisc: math-emu: Fix fall-through warnings 2021-09-01 22:18:18 +02:00
mm parisc: Fix set_fixmap() on PA1.x CPUs 2021-11-01 12:00:22 +01:00
defpalo.conf
install.sh parisc: Install vmlinuz instead of zImage file 2020-10-15 08:10:39 +02:00
Kbuild parisc: move core-y in arch/parisc/Makefile to arch/parisc/Kbuild 2021-08-30 10:18:25 +02:00
Kconfig parisc: Move thread_info into task struct 2021-11-01 07:35:59 +01:00
Kconfig.debug tracing: Refactor TRACE_IRQFLAGS_SUPPORT in Kconfig 2021-08-16 11:37:21 -04:00
Makefile parisc: Fix compile failure when building 64-bit kernel natively 2021-09-01 21:52:02 +02:00
nm