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| author |   Yan, Zheng <zheng.z.yan@intel.com> | 2014-04-18 22:01:38 +0800 |
|---|---|---|
| committer | Yan, Zheng <zheng.z.yan@intel.com> | 2014-06-06 09:29:55 +0800 |
| commit | 8d08503c130e96e3794f66fe47053051460b1584 (patch) | |
| tree | bdfa7be3a04c5ce36684f1ac900ad204c4f80c57 /fs/ceph/inode.c | |
| parent | ceph: introduce ceph_fill_fragtree() (diff) | |
| download | linux-dev-8d08503c130e96e3794f66fe47053051460b1584.tar.xz linux-dev-8d08503c130e96e3794f66fe47053051460b1584.zip | |
ceph: remember subtree root dirfrag's auth MDS
remember dirfrag's auth MDS when it's different from its parent inode's
auth MDS.
Signed-off-by: Yan, Zheng <zheng.z.yan@intel.com>
Diffstat (limited to 'fs/ceph/inode.c')
| -rw-r--r-- | fs/ceph/inode.c | 8 |
1 files changed, 7 insertions, 1 deletions
diff --git a/fs/ceph/inode.c b/fs/ceph/inode.c index 850b26d2e601..8b3da8adbbe3 100644 --- a/fs/ceph/inode.c +++ b/fs/ceph/inode.c @@ -245,11 +245,17 @@ static int ceph_fill_dirfrag(struct inode *inode, u32 id = le32_to_cpu(dirinfo->frag); int mds = le32_to_cpu(dirinfo->auth); int ndist = le32_to_cpu(dirinfo->ndist); + int diri_auth = -1; int i; int err = 0; + spin_lock(&ci->i_ceph_lock); + if (ci->i_auth_cap) + diri_auth = ci->i_auth_cap->mds; + spin_unlock(&ci->i_ceph_lock); + mutex_lock(&ci->i_fragtree_mutex); - if (ndist == 0) { + if (ndist == 0 && mds == diri_auth) { /* no delegation info needed. */ frag = __ceph_find_frag(ci, id); if (!frag) |