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-rw-r--r--include/linux/sbitmap.h8
1 files changed, 8 insertions, 0 deletions
diff --git a/include/linux/sbitmap.h b/include/linux/sbitmap.h
index 0dcc60e820de..841585f6e5f2 100644
--- a/include/linux/sbitmap.h
+++ b/include/linux/sbitmap.h
@@ -171,6 +171,8 @@ void sbitmap_resize(struct sbitmap *sb, unsigned int depth);
* starting from the last allocated bit. This is less efficient
* than the default behavior (false).
*
+ * This operation provides acquire barrier semantics if it succeeds.
+ *
* Return: Non-negative allocated bit number if successful, -1 otherwise.
*/
int sbitmap_get(struct sbitmap *sb, unsigned int alloc_hint, bool round_robin);
@@ -300,6 +302,12 @@ static inline void sbitmap_clear_bit(struct sbitmap *sb, unsigned int bitnr)
clear_bit(SB_NR_TO_BIT(sb, bitnr), __sbitmap_word(sb, bitnr));
}
+static inline void sbitmap_clear_bit_unlock(struct sbitmap *sb,
+ unsigned int bitnr)
+{
+ clear_bit_unlock(SB_NR_TO_BIT(sb, bitnr), __sbitmap_word(sb, bitnr));
+}
+
static inline int sbitmap_test_bit(struct sbitmap *sb, unsigned int bitnr)
{
return test_bit(SB_NR_TO_BIT(sb, bitnr), __sbitmap_word(sb, bitnr));