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authorSage Weil <sage@newdream.net>2010-04-29 03:12:06 +0400
committerSage Weil <sage@newdream.net>2010-05-03 21:49:25 +0400
commitea1409f96197c1bffe5d7d5bc967b3445edcc1fa (patch)
treecbbd8ed4cca9bb718a596277f1152f2f1d629c37 /fs/ceph
parent5c6a2cdb4fe8aaf6b54f022c14f13d2a12b45914 (diff)
downloadlinux-ea1409f96197c1bffe5d7d5bc967b3445edcc1fa.tar.xz
ceph: clear dir complete, invalidate dentry on replayed rename
If a rename operation is resent to the MDS following an MDS restart, the client does not get a full reply (containing the resulting metadata) back. In that case, a ceph_rename() needs to compensate by doing anything useful that fill_inode() would have, like d_move(). It also needs to invalidate the dentry (to workaround the vfs_rename_dir() bug) and clear the dir complete flag, just like fill_trace(). Signed-off-by: Sage Weil <sage@newdream.net>
Diffstat (limited to 'fs/ceph')
-rw-r--r--fs/ceph/dir.c9
1 files changed, 9 insertions, 0 deletions
diff --git a/fs/ceph/dir.c b/fs/ceph/dir.c
index ea8ee2e526aa..650d2db5ed26 100644
--- a/fs/ceph/dir.c
+++ b/fs/ceph/dir.c
@@ -880,7 +880,16 @@ static int ceph_rename(struct inode *old_dir, struct dentry *old_dentry,
* do_request, above). If there is no trace, we need
* to do it here.
*/
+
+ /* d_move screws up d_subdirs order */
+ ceph_i_clear(new_dir, CEPH_I_COMPLETE);
+
d_move(old_dentry, new_dentry);
+
+ /* ensure target dentry is invalidated, despite
+ rehashing bug in vfs_rename_dir */
+ new_dentry->d_time = jiffies;
+ ceph_dentry(new_dentry)->lease_shared_gen = 0;
}
ceph_mdsc_put_request(req);
return err;