From: Greg Kroah-Hartman on
From: Eric W. Biederman <ebiederm(a)xmission.com>

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(a)xmission.com>
Signed-off-by: Greg Kroah-Hartman <gregkh(a)suse.de>
---
fs/sysfs/symlink.c | 3 ++-
1 files changed, 2 insertions(+), 1 deletions(-)

diff --git a/fs/sysfs/symlink.c b/fs/sysfs/symlink.c
index 6603833..a7ac78f 100644
--- a/fs/sysfs/symlink.c
+++ b/fs/sysfs/symlink.c
@@ -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
--
1.7.2

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