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| author | Sage Weil <sage@newdream.net> | 2010-04-28 16:12:06 -0700 |
|---|---|---|
| committer | Sage Weil <sage@newdream.net> | 2010-05-03 10:49:25 -0700 |
| commit | ea1409f96197c1bffe5d7d5bc967b3445edcc1fa (patch) | |
| tree | cbbd8ed4cca9bb718a596277f1152f2f1d629c37 /fs/ceph/dir.c | |
| parent | 5c6a2cdb4fe8aaf6b54f022c14f13d2a12b45914 (diff) | |
| download | op-kernel-dev-ea1409f96197c1bffe5d7d5bc967b3445edcc1fa.zip op-kernel-dev-ea1409f96197c1bffe5d7d5bc967b3445edcc1fa.tar.gz | |
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/dir.c')
| -rw-r--r-- | fs/ceph/dir.c | 9 |
1 files changed, 9 insertions, 0 deletions
diff --git a/fs/ceph/dir.c b/fs/ceph/dir.c index ea8ee2e..650d2db 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; |
