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-rw-r--r--fs/ceph/super.c33
1 files changed, 15 insertions, 18 deletions
diff --git a/fs/ceph/super.c b/fs/ceph/super.c
index 715282a92a07..c973043deb0e 100644
--- a/fs/ceph/super.c
+++ b/fs/ceph/super.c
@@ -793,22 +793,20 @@ static struct dentry *ceph_real_mount(struct ceph_fs_client *fsc,
struct dentry *root;
int first = 0; /* first vfsmount for this super_block */
- dout("mount start\n");
+ dout("mount start %p\n", fsc);
mutex_lock(&fsc->client->mount_mutex);
- err = __ceph_open_session(fsc->client, started);
- if (err < 0)
- goto out;
+ if (!fsc->sb->s_root) {
+ err = __ceph_open_session(fsc->client, started);
+ if (err < 0)
+ goto out;
- dout("mount opening root\n");
- root = open_root_dentry(fsc, "", started);
- if (IS_ERR(root)) {
- err = PTR_ERR(root);
- goto out;
- }
- if (fsc->sb->s_root) {
- dput(root);
- } else {
+ dout("mount opening root\n");
+ root = open_root_dentry(fsc, "", started);
+ if (IS_ERR(root)) {
+ err = PTR_ERR(root);
+ goto out;
+ }
fsc->sb->s_root = root;
first = 1;
@@ -818,6 +816,7 @@ static struct dentry *ceph_real_mount(struct ceph_fs_client *fsc,
}
if (path[0] == 0) {
+ root = fsc->sb->s_root;
dget(root);
} else {
dout("mount opening base mountpoint\n");
@@ -833,16 +832,14 @@ static struct dentry *ceph_real_mount(struct ceph_fs_client *fsc,
mutex_unlock(&fsc->client->mount_mutex);
return root;
-out:
- mutex_unlock(&fsc->client->mount_mutex);
- return ERR_PTR(err);
-
fail:
if (first) {
dput(fsc->sb->s_root);
fsc->sb->s_root = NULL;
}
- goto out;
+out:
+ mutex_unlock(&fsc->client->mount_mutex);
+ return ERR_PTR(err);
}
static int ceph_set_super(struct super_block *s, void *data)

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