sysfs: allow creating symlinks from untagged to tagged directories

Supporting symlinks from untagged to tagged directories is reasonable,
and needed to support CONFIG_SYSFS_DEPRECATED.  So don't fail a prior
allowing that case to work.

Signed-off-by: Eric W. Biederman <ebiederm@xmission.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
This commit is contained in:
Eric W. Biederman 2010-07-20 22:12:01 -07:00 committed by Greg Kroah-Hartman
parent 521d045354
commit d33002129e

View file

@ -67,7 +67,8 @@ static int sysfs_do_create_link(struct kobject *kobj, struct kobject *target,
sysfs_addrm_start(&acxt, parent_sd);
/* Symlinks must be between directories with the same ns_type */
if (ns_type == sysfs_ns_type(sd->s_symlink.target_sd->s_parent)) {
if (!ns_type ||
(ns_type == sysfs_ns_type(sd->s_symlink.target_sd->s_parent))) {
if (warn)
error = sysfs_add_one(&acxt, sd);
else