Helge Deller 7a894c8737 parisc: Fix CONFIG_TLB_PTLOCK to work with lightweight spinlock checks ...

For the TLB_PTLOCK checks we used an optimization to store the spc
register into the spinlock to unlock it. This optimization works as
long as the lightweight spinlock checks (CONFIG_LIGHTWEIGHT_SPINLOCK_CHECK)
aren't enabled, because they really check if the lock word is zero or
__ARCH_SPIN_LOCK_UNLOCKED_VAL and abort with a kernel crash
("Spinlock was trashed") otherwise.

Drop that optimization to make it possible to activate both checks
at the same time.

Noticed-by: Sam James <sam@gentoo.org>
Signed-off-by: Helge Deller <deller@gmx.de>
Tested-by: Sam James <sam@gentoo.org>
Cc: stable@vger.kernel.org # v6.4+
Fixes: 15e64ef652 ("parisc: Add lightweight spinlock checks")

2023-08-14 09:54:49 +02:00

..

boot

parisc: boot: Nuke some sparse warnings in decompressor

2023-08-10 22:42:57 +02:00

configs

arch/*/configs/*defconfig: Replace AUTOFS4_FS by AUTOFS_FS

2023-07-29 14:08:22 -07:00

include

parisc: ftrace: Add declaration for ftrace_function_trampoline()

2023-08-10 22:51:54 +02:00

kernel

parisc: Fix CONFIG_TLB_PTLOCK to work with lightweight spinlock checks

2023-08-14 09:54:49 +02:00

lib

parisc: ucmpdi2: Fix no previous prototype for '__ucmpdi2' warning

2023-08-10 18:34:05 +02:00

math-emu

parisc: math-emu: Avoid compiler warnings with W=1

2023-07-03 18:56:03 +02:00

mm

parisc: dma: Add prototype for pcxl_dma_start

2023-08-10 19:12:16 +02:00

video

fbdev: Include <linux/fb.h> instead of <asm/fb.h>

2023-05-18 11:06:21 +02:00

defpalo.conf

parisc: switch to gzip-compressed vmlinuz kernel

2013-07-09 22:09:20 +02:00

install.sh

kbuild: factor out the common installation code into scripts/install.sh

2022-05-11 21:45:53 +09:00

Kbuild

kbuild: use more subdir- for visiting subdirectories while cleaning

2021-10-24 13:49:46 +09:00

Kconfig

parisc: Default to 8 CPUs for 64-bit kernel

2023-06-30 17:14:14 +02:00

Kconfig.debug

parisc: Fix lightweight spinlock checks to not break futexes

2023-08-10 17:32:09 +02:00

Makefile

arch/parisc: Implement fb_is_primary_device() under arch/parisc

2023-04-20 10:04:58 +02:00