aboutsummaryrefslogtreecommitdiffstats
diff options
context:
space:
mode:
-rw-r--r--kernel/Kconfig.locks3
-rw-r--r--kernel/mutex.c4
2 files changed, 5 insertions, 2 deletions
diff --git a/kernel/Kconfig.locks b/kernel/Kconfig.locks
index d1f86db71451..88c92fb44618 100644
--- a/kernel/Kconfig.locks
+++ b/kernel/Kconfig.locks
@@ -197,3 +197,6 @@ config INLINE_WRITE_UNLOCK_IRQ
197 197
198config INLINE_WRITE_UNLOCK_IRQRESTORE 198config INLINE_WRITE_UNLOCK_IRQRESTORE
199 def_bool !DEBUG_SPINLOCK && ARCH_INLINE_WRITE_UNLOCK_IRQRESTORE 199 def_bool !DEBUG_SPINLOCK && ARCH_INLINE_WRITE_UNLOCK_IRQRESTORE
200
201config MUTEX_SPIN_ON_OWNER
202 def_bool SMP && !DEBUG_MUTEXES && !HAVE_DEFAULT_NO_SPIN_MUTEXES
diff --git a/kernel/mutex.c b/kernel/mutex.c
index 947b3ad551f8..632f04c57d82 100644
--- a/kernel/mutex.c
+++ b/kernel/mutex.c
@@ -148,8 +148,8 @@ __mutex_lock_common(struct mutex *lock, long state, unsigned int subclass,
148 148
149 preempt_disable(); 149 preempt_disable();
150 mutex_acquire(&lock->dep_map, subclass, 0, ip); 150 mutex_acquire(&lock->dep_map, subclass, 0, ip);
151#if defined(CONFIG_SMP) && !defined(CONFIG_DEBUG_MUTEXES) && \ 151
152 !defined(CONFIG_HAVE_DEFAULT_NO_SPIN_MUTEXES) 152#ifdef CONFIG_MUTEX_SPIN_ON_OWNER
153 /* 153 /*
154 * Optimistic spinning. 154 * Optimistic spinning.
155 * 155 *