ceph: don't mark dirty caps when there is no auth cap

No i_auth_cap means reconnecting to MDS was denied. So don't
add new dirty caps.

Signed-off-by: Yan, Zheng <zyan@redhat.com>

2 files changed, 8 insertions, 2 deletions

diff --git a/fs/ceph/caps.c b/fs/ceph/caps.c
index 4ddadc13d162..37a42353b983 100644
--- a/fs/ceph/caps.c
+++ b/fs/ceph/caps.c
@@ -1404,6 +1404,13 @@ int __ceph_mark_dirty_caps(struct ceph_inode_info *ci, int mask)
         int was = ci->i_dirty_caps;
         int dirty = 0;
 
+        if (!ci->i_auth_cap) {
+                pr_warn("__mark_dirty_caps %p %llx mask %s, "
+                        "but no auth cap (session was closed?)\n",
+                        inode, ceph_ino(inode), ceph_cap_string(mask));
+                return 0;
+        }
+
         dout("__mark_dirty_caps %p %s dirty %s -> %s\n", &ci->vfs_inode,
              ceph_cap_string(mask), ceph_cap_string(was),
              ceph_cap_string(was | mask));
@@ -1414,7 +1421,6 @@ int __ceph_mark_dirty_caps(struct ceph_inode_info *ci, int mask)
                                 ci->i_snap_realm->cached_context);
                 dout(" inode %p now dirty snapc %p auth cap %p\n",
                      &ci->vfs_inode, ci->i_head_snapc, ci->i_auth_cap);
-                WARN_ON(!ci->i_auth_cap);
                 BUG_ON(!list_empty(&ci->i_dirty_item));
                 spin_lock(&mdsc->cap_dirty_lock);
                 list_add(&ci->i_dirty_item, &mdsc->cap_dirty);
diff --git a/fs/ceph/mds_client.c b/fs/ceph/mds_client.c
index 0122491d947c..0cfc2d163549 100644
--- a/fs/ceph/mds_client.c
+++ b/fs/ceph/mds_client.c
@@ -1098,7 +1098,7 @@ static int remove_session_caps_cb(struct inode *inode, struct ceph_cap *cap,
              cap, ci, &ci->vfs_inode);
         spin_lock(&ci->i_ceph_lock);
         __ceph_remove_cap(cap, false);
-        if (!__ceph_is_any_real_caps(ci)) {
+        if (!ci->i_auth_cap) {
                 struct ceph_mds_client *mdsc =
                         ceph_sb_to_client(inode->i_sb)->mdsc;