xref: /OK3568_Linux_fs/kernel/fs/9p/fid.h (revision 4882a59341e53eb6f0b4789bf948001014eff981) 
1*4882a593Smuzhiyun /* SPDX-License-Identifier: GPL-2.0-only */
2*4882a593Smuzhiyun /*
3*4882a593Smuzhiyun  * V9FS FID Management
4*4882a593Smuzhiyun  *
5*4882a593Smuzhiyun  *  Copyright (C) 2005 by Eric Van Hensbergen <ericvh@gmail.com>
6*4882a593Smuzhiyun  */
7*4882a593Smuzhiyun #ifndef FS_9P_FID_H
8*4882a593Smuzhiyun #define FS_9P_FID_H
9*4882a593Smuzhiyun #include <linux/list.h>
10*4882a593Smuzhiyun 
11*4882a593Smuzhiyun struct p9_fid *v9fs_fid_lookup(struct dentry *dentry);
v9fs_parent_fid(struct dentry * dentry)12*4882a593Smuzhiyun static inline struct p9_fid *v9fs_parent_fid(struct dentry *dentry)
13*4882a593Smuzhiyun {
14*4882a593Smuzhiyun 	return v9fs_fid_lookup(dentry->d_parent);
15*4882a593Smuzhiyun }
16*4882a593Smuzhiyun void v9fs_fid_add(struct dentry *dentry, struct p9_fid *fid);
17*4882a593Smuzhiyun struct p9_fid *v9fs_writeback_fid(struct dentry *dentry);
clone_fid(struct p9_fid * fid)18*4882a593Smuzhiyun static inline struct p9_fid *clone_fid(struct p9_fid *fid)
19*4882a593Smuzhiyun {
20*4882a593Smuzhiyun 	return IS_ERR(fid) ? fid :  p9_client_walk(fid, 0, NULL, 1);
21*4882a593Smuzhiyun }
v9fs_fid_clone(struct dentry * dentry)22*4882a593Smuzhiyun static inline struct p9_fid *v9fs_fid_clone(struct dentry *dentry)
23*4882a593Smuzhiyun {
24*4882a593Smuzhiyun 	return clone_fid(v9fs_fid_lookup(dentry));
25*4882a593Smuzhiyun }
26*4882a593Smuzhiyun #endif
27