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-rw-r--r--fs/ceph/caps.c4
1 files changed, 3 insertions, 1 deletions
diff --git a/fs/ceph/caps.c b/fs/ceph/caps.c
index bdfec8978479..2563f42445e6 100644
--- a/fs/ceph/caps.c
+++ b/fs/ceph/caps.c
@@ -597,7 +597,7 @@ static void __check_cap_issue(struct ceph_inode_info *ci, struct ceph_cap *cap,
/*
* Add a capability under the given MDS session.
*
- * Caller should hold session snap_rwsem (read) and s_mutex.
+ * Caller should hold session snap_rwsem (read) and ci->i_ceph_lock
*
* @fmode is the open file mode, if we are opening a file, otherwise
* it is < 0. (This is so we can atomically add the cap and add an
@@ -616,6 +616,8 @@ void ceph_add_cap(struct inode *inode,
int actual_wanted;
u32 gen;
+ lockdep_assert_held(&ci->i_ceph_lock);
+
dout("add_cap %p mds%d cap %llx %s seq %d\n", inode,
session->s_mds, cap_id, ceph_cap_string(issued), seq);