inode.c (31747eda41ef3c30c09c5c096b380bf54013746a) inode.c (86eaa13046d5e814484c89f635a95b0342b765ad)
1/*
2 *
3 * Copyright (C) 2011 Novell Inc.
4 *
5 * This program is free software; you can redistribute it and/or modify it
6 * under the terms of the GNU General Public License version 2 as published by
7 * the Free Software Foundation.
8 */

--- 91 unchanged lines hidden (view full) ---

100 lowermask, flags);
101 if (err)
102 goto out;
103
104 /*
105 * Lower hardlinks may be broken on copy up to different
106 * upper files, so we cannot use the lower origin st_ino
107 * for those different files, even for the same fs case.
1/*
2 *
3 * Copyright (C) 2011 Novell Inc.
4 *
5 * This program is free software; you can redistribute it and/or modify it
6 * under the terms of the GNU General Public License version 2 as published by
7 * the Free Software Foundation.
8 */

--- 91 unchanged lines hidden (view full) ---

100 lowermask, flags);
101 if (err)
102 goto out;
103
104 /*
105 * Lower hardlinks may be broken on copy up to different
106 * upper files, so we cannot use the lower origin st_ino
107 * for those different files, even for the same fs case.
108 *
109 * Similarly, several redirected dirs can point to the
110 * same dir on a lower layer. With the "verify_lower"
111 * feature, we do not use the lower origin st_ino, if
112 * we haven't verified that this redirect is unique.
113 *
108 * With inodes index enabled, it is safe to use st_ino
114 * With inodes index enabled, it is safe to use st_ino
109 * of an indexed hardlinked origin. The index validates
110 * that the upper hardlink is not broken.
115 * of an indexed origin. The index validates that the
116 * upper hardlink is not broken and that a redirected
117 * dir is the only redirect to that origin.
111 */
118 */
112 if (is_dir || lowerstat.nlink == 1 ||
113 ovl_test_flag(OVL_INDEX, d_inode(dentry)))
119 if (ovl_test_flag(OVL_INDEX, d_inode(dentry)) ||
120 (!ovl_verify_lower(dentry->d_sb) &&
121 (is_dir || lowerstat.nlink == 1)))
114 stat->ino = lowerstat.ino;
115
116 if (samefs)
117 WARN_ON_ONCE(stat->dev != lowerstat.dev);
118 else
119 stat->dev = ovl_get_pseudo_dev(dentry);
120 }
121 if (samefs) {

--- 601 unchanged lines hidden --- 		122 stat->ino = lowerstat.ino;
123
124 if (samefs)
125 WARN_ON_ONCE(stat->dev != lowerstat.dev);
126 else
127 stat->dev = ovl_get_pseudo_dev(dentry);
128 }
129 if (samefs) {

--- 601 unchanged lines hidden ---