From: Jeremy Fitzhardinge <[email protected]> If we're releasing the lock into an uncontended state, there's nobody waiting on it, so there's no need to kick anyone.
Signed-off-by: Jeremy Fitzhardinge <[email protected]> --- arch/x86/kernel/paravirt-spinlocks.c | 3 +-- 1 files changed, 1 insertions(+), 2 deletions(-) diff --git a/arch/x86/kernel/paravirt-spinlocks.c b/arch/x86/kernel/paravirt-spinlocks.c index 21b6986..71b8557 100644 --- a/arch/x86/kernel/paravirt-spinlocks.c +++ b/arch/x86/kernel/paravirt-spinlocks.c @@ -47,8 +47,7 @@ void __ticket_unlock_release_slowpath(struct arch_spinlock *lock) old.head_tail, new.head_tail) != old.head_tail) { /* still people waiting */ __ticket_unlock_release(lock); + __ticket_unlock_kick(lock, new.tickets.head); } - - __ticket_unlock_kick(lock, new.tickets.head); } EXPORT_SYMBOL(__ticket_unlock_release_slowpath); -- 1.7.6 -- To unsubscribe from this list: send the line "unsubscribe kvm" in the body of a message to [email protected] More majordomo info at http://vger.kernel.org/majordomo-info.html
