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authorAlex Elder <elder@dreamhost.com>2012-01-04 16:30:15 -0600
committerSage Weil <sage@newdream.net>2012-01-11 16:28:25 -0800
commitd46cfba5363a163851dc768f717f34185527a472 (patch)
tree18aaa9ab40b91b618ab206670de7a965f17589d1 /fs/ceph/super.c
parent56e925b677c5293e5aac73dac09e93b23259f907 (diff)
ceph: always initialize the dentry in open_root_dentry()
When open_root_dentry() gets a dentry via d_obtain_alias() it does not get initialized. If the dentry obtained came from the cache, this is OK. But if not, the result is an improperly initialized dentry. To fix this, call ceph_init_dentry() regardless of which path produced the dentry. That function returns immediately for a dentry that is already initialized, it is safe to use either way. (Credit to Sage, who suggested this fix.) Signed-off-by: Alex Elder <aelder@sgi.com>
Diffstat (limited to 'fs/ceph/super.c')
-rw-r--r--fs/ceph/super.c7
1 files changed, 3 insertions, 4 deletions
diff --git a/fs/ceph/super.c b/fs/ceph/super.c
index b48f15f101a..ec74313e901 100644
--- a/fs/ceph/super.c
+++ b/fs/ceph/super.c
@@ -638,12 +638,11 @@ static struct dentry *open_root_dentry(struct ceph_fs_client *fsc,
if (err == 0) {
dout("open_root_inode success\n");
if (ceph_ino(req->r_target_inode) == CEPH_INO_ROOT &&
- fsc->sb->s_root == NULL) {
+ fsc->sb->s_root == NULL)
root = d_alloc_root(req->r_target_inode);
- ceph_init_dentry(root);
- } else {
+ else
root = d_obtain_alias(req->r_target_inode);
- }
+ ceph_init_dentry(root);
req->r_target_inode = NULL;
dout("open_root_inode success, root dentry is %p\n", root);
} else {