notify/fanotify/fanotify_user.c

412 static int copy_fid_info_to_user(__kernel_fsid_t *fsid, struct fanotify_fh *fh,
452 	info.fsid = *fsid;
1202 				  struct fan_fsid *fsid)
1208 	FANOTIFY_MARK(mark)->fsid = fsid->id;
1210 	if (fsid->weak)
1213 	/* First mark added will determine if group is single or multi fsid */
1231 	/* Do not allow mixing of marks with weak and strong fsid */
1235 	/* Allow mixing of marks with strong fsid from different fs */
1236 	if (!fsid->weak)
1239 	/* Do not allow mixing marks with weak fsid from different fs */
1240 	if (old_sb != fsid->sb)
1244 	if (!fanotify_fsid_equal(&FANOTIFY_MARK(old)->fsid,
1245 				 &FANOTIFY_MARK(mark)->fsid))
1255 						   struct fan_fsid *fsid)
1282 	/* Cache fsid of filesystem containing the marked object */
1283 	if (fsid) {
1284 		ret = fanotify_set_mark_fsid(group, mark, fsid);
1288 		fan_mark->fsid.val[0] = fan_mark->fsid.val[1] = 0;
1349 			     struct fan_fsid *fsid)
1359 						 fan_flags, fsid);
1397 				      unsigned int flags, struct fan_fsid *fsid)
1400 				 FSNOTIFY_OBJ_TYPE_VFSMOUNT, mask, flags, fsid);
1405 				unsigned int flags, struct fan_fsid *fsid)
1408 				 FSNOTIFY_OBJ_TYPE_SB, mask, flags, fsid);
1413 				   unsigned int flags, struct fan_fsid *fsid)
1428 				 FSNOTIFY_OBJ_TYPE_INODE, mask, flags, fsid);
1625 			      struct fan_fsid *fsid)
1632 	 * Make sure dentry is not of a filesystem with zero fsid (e.g. fuse).
1634 	err = vfs_get_fsid(dentry, &fsid->id);
1638 	fsid->sb = dentry->d_sb;
1639 	if (!fsid->id.val[0] && !fsid->id.val[1]) {
1646 	 * which uses a different fsid than sb root.
1652 	if (!fanotify_fsid_equal(&root_fsid, &fsid->id)) {
1657 	fsid->weak = false;
1661 	/* Allow weak fsid when marking inodes */
1662 	fsid->weak = true;
1747 	struct fan_fsid __fsid, *fsid = NULL;
1907 		fsid = &__fsid;
1941 							 flags, fsid);
1944 						   flags, fsid);
1947 						      flags, fsid);