4 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
6 * This program is free software; you can redistribute it and/or modify
7 * it under the terms of the GNU General Public License version 2 only,
8 * as published by the Free Software Foundation.
10 * This program is distributed in the hope that it will be useful, but
11 * WITHOUT ANY WARRANTY; without even the implied warranty of
12 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
13 * General Public License version 2 for more details (a copy is included
14 * in the LICENSE file that accompanied this code).
16 * You should have received a copy of the GNU General Public License
17 * version 2 along with this program; if not, write to the
18 * Free Software Foundation, Inc., 59 Temple Place - Suite 330,
19 * Boston, MA 021110-1307, USA
24 * Copyright (c) 2013, Intel Corporation.
25 * Use is subject to license terms.
27 * Author: di wang <di.wang@intel.com>
30 #define DEFAULT_LINKEA_SIZE 4096
34 * Buffer to keep link EA body.
36 struct lu_buf *ld_buf;
38 * The matched header, entry and its lenght in the EA
40 struct link_ea_header *ld_leh;
41 struct link_ea_entry *ld_lee;
45 int linkea_data_new(struct linkea_data *ldata, struct lu_buf *buf);
46 int linkea_init(struct linkea_data *ldata);
47 void linkea_entry_unpack(const struct link_ea_entry *lee, int *reclen,
48 struct lu_name *lname, struct lu_fid *pfid);
49 int linkea_add_buf(struct linkea_data *ldata, const struct lu_name *lname,
50 const struct lu_fid *pfid);
51 void linkea_del_buf(struct linkea_data *ldata, const struct lu_name *lname);
52 int linkea_links_find(struct linkea_data *ldata, const struct lu_name *lname,
53 const struct lu_fid *pfid);
55 static inline void linkea_first_entry(struct linkea_data *ldata)
57 LASSERT(ldata != NULL);
58 LASSERT(ldata->ld_leh != NULL);
60 if (ldata->ld_leh->leh_reccount == 0)
63 ldata->ld_lee = (struct link_ea_entry *)(ldata->ld_leh + 1);
66 static inline void linkea_next_entry(struct linkea_data *ldata)
68 LASSERT(ldata != NULL);
69 LASSERT(ldata->ld_leh != NULL);
71 if (ldata->ld_lee != NULL) {
72 ldata->ld_lee = (struct link_ea_entry *)((char *)ldata->ld_lee +
74 if ((char *)ldata->ld_lee >= ((char *)ldata->ld_leh +
75 ldata->ld_leh->leh_len))