diff mbox

ceph: Hold caps_list_lock when adjusting caps_{use,total}_count

Message ID 1351909957-15243-1-git-send-email-zheng.z.yan@intel.com (mailing list archive)
State New, archived
Headers show

Commit Message

Yan, Zheng Nov. 3, 2012, 2:32 a.m. UTC 
From: "Yan, Zheng" <zheng.z.yan@intel.com>

Signed-off-by: Yan, Zheng <zheng.z.yan@intel.com>
---
 fs/ceph/caps.c | 2 ++
 1 file changed, 2 insertions(+)
diff mbox

Patch

diff --git a/fs/ceph/caps.c b/fs/ceph/caps.c
index c633d1d..8072aef 100644
--- a/fs/ceph/caps.c
+++ b/fs/ceph/caps.c
@@ -236,8 +236,10 @@  static struct ceph_cap *get_cap(struct ceph_mds_client *mdsc,
 	if (!ctx) {
 		cap = kmem_cache_alloc(ceph_cap_cachep, GFP_NOFS);
 		if (cap) {
+			spin_lock(&mdsc->caps_list_lock);
 			mdsc->caps_use_count++;
 			mdsc->caps_total_count++;
+			spin_unlock(&mdsc->caps_list_lock);
 		}
 		return cap;
 	}