ceph: use i_release_count to indicate dir's completeness

Current ceph code tracks directory's completeness in two places.
ceph_readdir() checks i_release_count to decide if it can set the
I_COMPLETE flag in i_ceph_flags. All other places check the I_COMPLETE
flag. This indirection introduces locking complexity.

This patch adds a new variable i_complete_count to ceph_inode_info.
Set i_release_count's value to it when marking a directory complete.
By comparing the two variables, we know if a directory is complete

Signed-off-by: Yan, Zheng <zheng.z.yan@intel.com>

1 files changed, 2 insertions, 2 deletions

diff --git a/fs/ceph/caps.c b/fs/ceph/caps.c
index bc575a4a813e..f9563108d189 100644
--- a/fs/ceph/caps.c
+++ b/fs/ceph/caps.c
@@ -490,7 +490,7 @@ static void __check_cap_issue(struct ceph_inode_info *ci, struct ceph_cap *cap,
                 ci->i_rdcache_gen++;
 
         /*
-         * if we are newly issued FILE_SHARED, clear I_COMPLETE; we
+         * if we are newly issued FILE_SHARED, mark dir not complete; we
          * don't know what happened to this directory while we didn't
          * have the cap.
          */
@@ -499,7 +499,7 @@ static void __check_cap_issue(struct ceph_inode_info *ci, struct ceph_cap *cap,
                 ci->i_shared_gen++;
                 if (S_ISDIR(ci->vfs_inode.i_mode)) {
                         dout(" marking %p NOT complete\n", &ci->vfs_inode);
-                        ci->i_ceph_flags &= ~CEPH_I_COMPLETE;
+                        __ceph_dir_clear_complete(ci);
                 }
         }
 }