summaryrefslogtreecommitdiffstats
diff options
context:
space:
mode:
Diffstat (limited to '')
-rw-r--r--lib/sbitmap.c8
1 files changed, 8 insertions, 0 deletions
diff --git a/lib/sbitmap.c b/lib/sbitmap.c
index a89fbe7cf6ca..2261136ae067 100644
--- a/lib/sbitmap.c
+++ b/lib/sbitmap.c
@@ -118,8 +118,13 @@ static int __sbitmap_get_word(unsigned long *word, unsigned long depth,
static inline bool sbitmap_deferred_clear(struct sbitmap *sb, int index)
{
unsigned long mask, val;
+ unsigned long __maybe_unused flags;
bool ret = false;
+ /* Silence bogus lockdep warning */
+#if defined(CONFIG_LOCKDEP)
+ local_irq_save(flags);
+#endif
spin_lock(&sb->map[index].swap_lock);
if (!sb->map[index].cleared)
@@ -142,6 +147,9 @@ static inline bool sbitmap_deferred_clear(struct sbitmap *sb, int index)
ret = true;
out_unlock:
spin_unlock(&sb->map[index].swap_lock);
+#if defined(CONFIG_LOCKDEP)
+ local_irq_restore(flags);
+#endif
return ret;
}