diff options
| author | Sage Weil <sage@newdream.net> | 2010-11-08 09:24:34 -0800 |
|---|---|---|
| committer | Sage Weil <sage@newdream.net> | 2010-11-08 09:24:34 -0800 |
| commit | d8672d64b88cdb7aa8139fb6d218f40b8cbf60af (patch) | |
| tree | 71d955bc89b33df3f838f8e1e8c0cbcd3f2bfc62 /fs/ceph/inode.c | |
| parent | 8bd59e0188c04f6540f00e13f633f22e4804ce06 (diff) | |
| download | lwn-d8672d64b88cdb7aa8139fb6d218f40b8cbf60af.tar.gz lwn-d8672d64b88cdb7aa8139fb6d218f40b8cbf60af.zip | |
ceph: fix update of ctime from MDS
The client can have a newer ctime than the MDS due to AUTH_EXCL and
XATTR_EXCL caps as well; update the check in ceph_fill_file_time
appropriately.
This fixes cases where ctime/mtime goes backward under the right sequence
of local updates (e.g. chmod) and mds replies (e.g. subsequent stat that
goes to the MDS).
Signed-off-by: Sage Weil <sage@newdream.net>
Diffstat (limited to 'fs/ceph/inode.c')
| -rw-r--r-- | fs/ceph/inode.c | 6 |
1 files changed, 4 insertions, 2 deletions
diff --git a/fs/ceph/inode.c b/fs/ceph/inode.c index 425c5b1f944e..7bc0fbd26af2 100644 --- a/fs/ceph/inode.c +++ b/fs/ceph/inode.c @@ -471,7 +471,9 @@ void ceph_fill_file_time(struct inode *inode, int issued, if (issued & (CEPH_CAP_FILE_EXCL| CEPH_CAP_FILE_WR| - CEPH_CAP_FILE_BUFFER)) { + CEPH_CAP_FILE_BUFFER| + CEPH_CAP_AUTH_EXCL| + CEPH_CAP_XATTR_EXCL)) { if (timespec_compare(ctime, &inode->i_ctime) > 0) { dout("ctime %ld.%09ld -> %ld.%09ld inc w/ cap\n", inode->i_ctime.tv_sec, inode->i_ctime.tv_nsec, @@ -511,7 +513,7 @@ void ceph_fill_file_time(struct inode *inode, int issued, warn = 1; } } else { - /* we have no write caps; whatever the MDS says is true */ + /* we have no write|excl caps; whatever the MDS says is true */ if (ceph_seq_cmp(time_warp_seq, ci->i_time_warp_seq) >= 0) { inode->i_ctime = *ctime; inode->i_mtime = *mtime; |