selinux: quiet the filesystem labeling behavior message

While the filesystem labeling method is only printed at the KERN_DEBUG
level, this still appears in dmesg and on modern Linux distributions
that create a lot of tmpfs mounts for session handling, the dmesg can
easily be filled with a lot of "SELinux: initialized (dev X ..."
messages.  This patch removes this notification for the normal case
but leaves the error message intact (displayed when mounting a
filesystem with an unknown labeling behavior).

Reported-by: Dave Jones <davej@codemonkey.org.uk>
Signed-off-by: Paul Moore <pmoore@redhat.com>

diff --git a/security/selinux/hooks.c b/security/selinux/hooks.c
index 6da7532893a1973e660f5eabf525d5769c655fef..c253caa90bb45ec62c2d4fa56b995c66587fcb9a 100644 (file)
--- a/security/selinux/hooks.c
+++ b/security/selinux/hooks.c
@@ -456,10 +456,6 @@ static int sb_finish_set_opts(struct super_block *sb)
        if (sbsec->behavior > ARRAY_SIZE(labeling_behaviors))
                printk(KERN_ERR "SELinux: initialized (dev %s, type %s), unknown behavior\n",
                       sb->s_id, sb->s_type->name);
-       else
-               printk(KERN_DEBUG "SELinux: initialized (dev %s, type %s), %s\n",
-                      sb->s_id, sb->s_type->name,
-                      labeling_behaviors[sbsec->behavior-1]);
 
        sbsec->flags |= SE_SBINITIALIZED;
        if (selinux_is_sblabel_mnt(sb))