diff options
Diffstat (limited to 'lib')
| -rw-r--r-- | lib/int_sqrt.c | 2 | ||||
| -rw-r--r-- | lib/sbitmap.c | 13 |
2 files changed, 4 insertions, 11 deletions
diff --git a/lib/int_sqrt.c b/lib/int_sqrt.c index 14436f4ca6bd..30e0f9770f88 100644 --- a/lib/int_sqrt.c +++ b/lib/int_sqrt.c @@ -52,7 +52,7 @@ u32 int_sqrt64(u64 x) if (x <= ULONG_MAX) return int_sqrt((unsigned long) x); - m = 1ULL << (fls64(x) & ~1ULL); + m = 1ULL << ((fls64(x) - 1) & ~1ULL); while (m != 0) { b = y + m; y >>= 1; diff --git a/lib/sbitmap.c b/lib/sbitmap.c index 65c2d06250a6..5b382c1244ed 100644 --- a/lib/sbitmap.c +++ b/lib/sbitmap.c @@ -26,14 +26,10 @@ static inline bool sbitmap_deferred_clear(struct sbitmap *sb, int index) { unsigned long mask, val; - unsigned long __maybe_unused flags; bool ret = false; + unsigned long flags; - /* Silence bogus lockdep warning */ -#if defined(CONFIG_LOCKDEP) - local_irq_save(flags); -#endif - spin_lock(&sb->map[index].swap_lock); + spin_lock_irqsave(&sb->map[index].swap_lock, flags); if (!sb->map[index].cleared) goto out_unlock; @@ -54,10 +50,7 @@ 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 + spin_unlock_irqrestore(&sb->map[index].swap_lock, flags); return ret; } |