summaryrefslogtreecommitdiffstats
path: root/fs
diff options
context:
space:
mode:
authorYan, Zheng <zheng.z.yan@intel.com>2014-04-18 22:01:38 +0800
committerYan, Zheng <zheng.z.yan@intel.com>2014-06-06 09:29:55 +0800
commit8d08503c130e96e3794f66fe47053051460b1584 (patch)
treebdfa7be3a04c5ce36684f1ac900ad204c4f80c57 /fs
parent3e7fbe9cebfdaac380419507908e10c499ddd25b (diff)
downloadlinux-8d08503c130e96e3794f66fe47053051460b1584.tar.gz
linux-8d08503c130e96e3794f66fe47053051460b1584.tar.bz2
linux-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')
-rw-r--r--fs/ceph/inode.c8
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)