Commit a6b27785 authored by Peter Zijlstra's avatar Peter Zijlstra Committed by Ingo Molnar

locking/qspinlock/x86: Only emit the test-and-set fallback when building guest support

Only emit the test-and-set fallback for Hypervisors lacking
PARAVIRT_SPINLOCKS support when building for guests.
Suggested-by: default avatarLinus Torvalds <torvalds@linux-foundation.org>
Signed-off-by: default avatarPeter Zijlstra (Intel) <peterz@infradead.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: linux-kernel@vger.kernel.org
Cc: stable@vger.kernel.org # 4.2
Signed-off-by: default avatarIngo Molnar <mingo@kernel.org>
parent 43b3f028
......@@ -39,8 +39,8 @@ static inline void queued_spin_unlock(struct qspinlock *lock)
}
#endif
#ifdef CONFIG_PARAVIRT
#define virt_spin_lock virt_spin_lock
static inline bool virt_spin_lock(struct qspinlock *lock)
{
if (!static_cpu_has(X86_FEATURE_HYPERVISOR))
......@@ -59,6 +59,7 @@ static inline bool virt_spin_lock(struct qspinlock *lock)
return true;
}
#endif /* CONFIG_PARAVIRT */
#include <asm-generic/qspinlock.h>
......
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