+static int selinux_is_sblabel_mnt(struct super_block *sb)
+{
+ struct superblock_security_struct *sbsec = sb->s_security;
+
+ if (sbsec->behavior == SECURITY_FS_USE_XATTR ||
+ sbsec->behavior == SECURITY_FS_USE_TRANS ||
+ sbsec->behavior == SECURITY_FS_USE_TASK)
+ return 1;
+
+ /* Special handling for sysfs. Is genfs but also has setxattr handler*/
+ if (strncmp(sb->s_type->name, "sysfs", sizeof("sysfs")) == 0)
+ return 1;
+
+ /*
+ * Special handling for rootfs. Is genfs but supports
+ * setting SELinux context on in-core inodes.
+ */
+ if (strncmp(sb->s_type->name, "rootfs", sizeof("rootfs")) == 0)
+ return 1;
+
+ return 0;
+}
+