ceph: no need to get parent inode in ceph_open

parent inode is needed in creating new inode case.  For ceph_open,
the target inode already exists.

Signed-off-by: Jianpeng Ma <jianpeng.ma@intel.com>
Signed-off-by: Yan, Zheng <zyan@redhat.com>

diff --git a/fs/ceph/file.c b/fs/ceph/file.c
index 2ebcbd4c163b8fa1c36fc321bdef93f2e22c1db4..90ec110b8400c5ee95a5fb49f688e0b63893bab1 100644 (file)
--- a/fs/ceph/file.c
+++ b/fs/ceph/file.c
@@ -136,7 +136,6 @@ int ceph_open(struct inode *inode, struct file *file)
        struct ceph_mds_client *mdsc = fsc->mdsc;
        struct ceph_mds_request *req;
        struct ceph_file_info *cf = file->private_data;
-       struct inode *parent_inode = NULL;
        int err;
        int flags, fmode, wanted;
 
@@ -210,10 +209,7 @@ int ceph_open(struct inode *inode, struct file *file)
        ihold(inode);
 
        req->r_num_caps = 1;
-       if (flags & O_CREAT)
-               parent_inode = ceph_get_dentry_parent_inode(file->f_path.dentry);
-       err = ceph_mdsc_do_request(mdsc, parent_inode, req);
-       iput(parent_inode);
+       err = ceph_mdsc_do_request(mdsc, NULL, req);
        if (!err)
                err = ceph_init_file(inode, file, req->r_fmode);
        ceph_mdsc_put_request(req);