X-Git-Url: https://gerrit.opnfv.org/gerrit/gitweb?a=blobdiff_plain;f=kernel%2Fdrivers%2Fmd%2Fraid5.h;h=584c7bd621234c3565cb4cc85cd0564edf3cba28;hb=refs%2Fchanges%2F53%2F2653%2F1;hp=66199a49423583f3044c6b76d8d42bd5e95d8176;hpb=342fa5dfa053559f47caad657132522496dcf1b3;p=kvmfornfv.git

diff --git a/kernel/drivers/md/raid5.h b/kernel/drivers/md/raid5.h
index 66199a494..584c7bd62 100644
--- a/kernel/drivers/md/raid5.h
+++ b/kernel/drivers/md/raid5.h
@@ -482,7 +482,8 @@ struct r5conf {
 	 */
 	int			active_name;
 	char			cache_name[2][32];
-	struct kmem_cache		*slab_cache; /* for allocating stripes */
+	struct kmem_cache	*slab_cache; /* for allocating stripes */
+	struct mutex		cache_size_mutex; /* Protect changes to cache size */
 
 	int			seq_flush, seq_write;
 	int			quiesce;