ceph: make sure flushing inode in proper session's cap_flushing list

when flushing inode's auth cap changes, we need to move it into the
new auth cap session's cap_flushing list

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

1 files changed, 10 insertions, 0 deletions

diff --git a/fs/ceph/caps.c b/fs/ceph/caps.c
index d941c48e8bff..ed8c7addce91 100644
--- a/fs/ceph/caps.c
+++ b/fs/ceph/caps.c
@@ -3410,6 +3410,7 @@ retry:
                         tcap->implemented |= issued;
                         if (cap == ci->i_auth_cap)
                                 ci->i_auth_cap = tcap;
+
                         if (!list_empty(&ci->i_cap_flush_list) &&
                             ci->i_auth_cap == tcap) {
                                 spin_lock(&mdsc->cap_dirty_lock);
@@ -3423,9 +3424,18 @@ retry:
         } else if (tsession) {
                 /* add placeholder for the export tagert */
                 int flag = (cap == ci->i_auth_cap) ? CEPH_CAP_FLAG_AUTH : 0;
+                tcap = new_cap;
                 ceph_add_cap(inode, tsession, t_cap_id, -1, issued, 0,
                              t_seq - 1, t_mseq, (u64)-1, flag, &new_cap);
 
+                if (!list_empty(&ci->i_cap_flush_list) &&
+                    ci->i_auth_cap == tcap) {
+                        spin_lock(&mdsc->cap_dirty_lock);
+                        list_move_tail(&ci->i_flushing_item,
+                                       &tcap->session->s_cap_flushing);
+                        spin_unlock(&mdsc->cap_dirty_lock);
+                }
+
                 __ceph_remove_cap(cap, false);
                 goto out_unlock;
         }