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ceph: clear dir complete, invalidate dentry on replayed rename

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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>
This commit is contained in:
Sage Weil 2010-04-28 16:12:06 -07:00
parent 5c6a2cdb4f
commit ea1409f961
1 changed files with 9 additions and 0 deletions
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9
fs/ceph/dir.c
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@ -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;