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locking/pvqspinlock/x86: Use _Q_LOCKED_VAL in PV_UNLOCK_ASM macro

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Use _Q_LOCKED_VAL instead of hardcoded $0x1 in PV_UNLOCK_ASM macro.

No functional changes intended.

Signed-off-by: Uros Bizjak <ubizjak@gmail.com>
Signed-off-by: Ingo Molnar <mingo@kernel.org>
Acked-by: Boqun Feng <boqun.feng@gmail.com>
Cc: Waiman Long <longman@redhat.com>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Link: https://lore.kernel.org/r/20240422151752.53997-1-ubizjak@gmail.com
This commit is contained in:
Uros Bizjak 2024-04-22 17:17:35 +02:00 committed by Ingo Molnar
parent 94af3a04e3
commit 532453e7aa
1 changed files with 1 additions and 1 deletions
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2
arch/x86/include/asm/qspinlock_paravirt.h
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@ -40,7 +40,7 @@ __PV_CALLEE_SAVE_REGS_THUNK(__pv_queued_spin_unlock_slowpath, ".spinlock.text");
#define PV_UNLOCK_ASM \
FRAME_BEGIN \
"push %rdx\n\t" \
"mov $0x1,%eax\n\t" \
"mov $" __stringify(_Q_LOCKED_VAL) ",%eax\n\t" \
"xor %edx,%edx\n\t" \
LOCK_PREFIX "cmpxchg %dl,(%rdi)\n\t" \
"jne .slowpath\n\t" \