From: Al Viro <viro@zeniv.linux.org.uk>
Date: Tue, 21 Mar 2017 01:08:07 +0000 (-0400)
Subject: new helper: uaccess_kernel()
X-Git-Tag: v3.18.127~2
X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=9265b0aba03d6754ddcd6ea8aced431be0380626;p=thirdparty%2Fkernel%2Fstable.git

new helper: uaccess_kernel()

commit db68ce10c4f0a27c1ff9fa0e789e5c41f8c4ea63 upstream.

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
[only take the include/linux/uaccess.h portion - gregkh]
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---

diff --git a/include/linux/uaccess.h b/include/linux/uaccess.h
index ecd3319dac331..ee7e1b8afd3a5 100644
--- a/include/linux/uaccess.h
+++ b/include/linux/uaccess.h
@@ -2,6 +2,9 @@
 #define __LINUX_UACCESS_H__
 
 #include <linux/preempt.h>
+
+#define uaccess_kernel() segment_eq(get_fs(), KERNEL_DS)
+
 #include <asm/uaccess.h>
 
 /*