The kernel/locking/spinlock.c file contains the
implementations of spinlock and rwlock.
and __lock_function inlines are taken from other include
files. the comment miss rwlock_api_smp.h about rwlock.
also fix a little comment in rwlock_api_smp.h
Signed-off-by: Cheng Jian <cj.chengj...@huawei.com>
---
include/linux/rwlock_api_smp.h | 2 +-
kernel/locking/spinlock.c | 3 ++-
2 files changed, 3 insertions(+), 2 deletions(-)
diff --git a/include/linux/rwlock_api_smp.h b/include/linux/rwlock_api_smp.h
index 5b9b84b..86ebb4b 100644
--- a/include/linux/rwlock_api_smp.h
+++ b/include/linux/rwlock_api_smp.h
@@ -211,7 +211,7 @@ static inline void __raw_write_lock(rwlock_t *lock)
LOCK_CONTENDED(lock, do_raw_write_trylock, do_raw_write_lock);
}
-#endif /* CONFIG_PREEMPT */
+#endif /* !CONFIG_GENERIC_LOCKBREAK || CONFIG_DEBUG_LOCK_ALLOC */
static inline void __raw_write_unlock(rwlock_t *lock)
{
diff --git a/kernel/locking/spinlock.c b/kernel/locking/spinlock.c
index 6e40fdf..11fbca7 100644
--- a/kernel/locking/spinlock.c
+++ b/kernel/locking/spinlock.c
@@ -30,7 +30,8 @@
#if !defined(CONFIG_GENERIC_LOCKBREAK) || defined(CONFIG_DEBUG_LOCK_ALLOC)
/*
* The __lock_function inlines are taken from
- * include/linux/spinlock_api_smp.h
+ * spinlock : include/linux/spinlock_api_smp.h
+ * rwlock : include/linux/rwlock_api_smp.h
*/
#else
#define raw_read_can_lock(l) read_can_lock(l)
--
1.8.3.1
