| /* SPDX-License-Identifier: GPL-2.0-only */ |
| /* |
| * V9FS FID Management |
| * |
| * Copyright (C) 2005 by Eric Van Hensbergen <ericvh@gmail.com> |
| */ |
| #ifndef FS_9P_FID_H |
| #define FS_9P_FID_H |
| #include <linux/list.h> |
| |
| struct p9_fid *v9fs_fid_lookup(struct dentry *dentry); |
| static inline struct p9_fid *v9fs_parent_fid(struct dentry *dentry) |
| { |
| return v9fs_fid_lookup(dentry->d_parent); |
| } |
| void v9fs_fid_add(struct dentry *dentry, struct p9_fid *fid); |
| struct p9_fid *v9fs_writeback_fid(struct dentry *dentry); |
| void v9fs_open_fid_add(struct inode *inode, struct p9_fid *fid); |
| static inline struct p9_fid *clone_fid(struct p9_fid *fid) |
| { |
| return IS_ERR(fid) ? fid : p9_client_walk(fid, 0, NULL, 1); |
| } |
| static inline struct p9_fid *v9fs_fid_clone(struct dentry *dentry) |
| { |
| struct p9_fid *fid, *nfid; |
| |
| fid = v9fs_fid_lookup(dentry); |
| if (!fid || IS_ERR(fid)) |
| return fid; |
| |
| nfid = clone_fid(fid); |
| p9_client_clunk(fid); |
| return nfid; |
| } |
| #endif |
