diff options
Diffstat (limited to 'lib/lockref.c')
| -rw-r--r-- | lib/lockref.c | 12 |
1 files changed, 3 insertions, 9 deletions
diff --git a/lib/lockref.c b/lib/lockref.c index 6f9d434c1521..f07a40d33871 100644 --- a/lib/lockref.c +++ b/lib/lockref.c @@ -1,7 +1,8 @@ #include <linux/export.h> #include <linux/lockref.h> +#include <linux/mutex.h> -#ifdef CONFIG_CMPXCHG_LOCKREF +#if USE_CMPXCHG_LOCKREF /* * Allow weakly-ordered memory architectures to provide barrier-less @@ -12,14 +13,6 @@ #endif /* - * Allow architectures to override the default cpu_relax() within CMPXCHG_LOOP. - * This is useful for architectures with an expensive cpu_relax(). - */ -#ifndef arch_mutex_cpu_relax -# define arch_mutex_cpu_relax() cpu_relax() -#endif - -/* * Note that the "cmpxchg()" reloads the "old" value for the * failure case. */ @@ -153,6 +146,7 @@ void lockref_mark_dead(struct lockref *lockref) assert_spin_locked(&lockref->lock); lockref->count = -128; } +EXPORT_SYMBOL(lockref_mark_dead); /** * lockref_get_not_dead - Increments count unless the ref is dead |