s390/test_unwind: avoid build warning with W=1

[linux-2.6-microblaze.git] / lib / sbitmap.c

diff --git a/lib/sbitmap.c b/lib/sbitmap.c
index 6220fa6..09d293c 100644 (file)
--- a/lib/sbitmap.c
+++ b/lib/sbitmap.c
@@ -488,9 +488,13 @@ void sbitmap_queue_recalculate_wake_batch(struct sbitmap_queue *sbq,
                                            unsigned int users)
 {
        unsigned int wake_batch;
+       unsigned int min_batch;
+       unsigned int depth = (sbq->sb.depth + users - 1) / users;
 
-       wake_batch = clamp_val((sbq->sb.depth + users - 1) /
-                       users, 4, SBQ_WAKE_BATCH);
+       min_batch = sbq->sb.depth >= (4 * SBQ_WAIT_QUEUES) ? 4 : 1;
+
+       wake_batch = clamp_val(depth / SBQ_WAIT_QUEUES,
+                       min_batch, SBQ_WAKE_BATCH);
        __sbitmap_queue_update_wake_batch(sbq, wake_batch);
 }
 EXPORT_SYMBOL_GPL(sbitmap_queue_recalculate_wake_batch);