linux-kernel - [RFC][PATCH 4/7] x86: wire up mprotect

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Message-Id: <20160223011113.1019C54D@viggo.jf.intel.com>
Date:	Mon, 22 Feb 2016 17:11:13 -0800
From:	Dave Hansen <dave@...1.net>
To:	linux-kernel@...r.kernel.org
Cc:	Dave Hansen <dave@...1.net>, dave.hansen@...ux.intel.com,
	linux-api@...r.kernel.org, linux-mm@...ck.org, x86@...nel.org,
	torvalds@...ux-foundation.org, akpm@...ux-foundation.org
Subject: [RFC][PATCH 4/7] x86: wire up mprotect_key() system call


From: Dave Hansen <dave.hansen@...ux.intel.com>

This is all that we need to get the new system call itself
working on x86.

Signed-off-by: Dave Hansen <dave.hansen@...ux.intel.com>
Cc: linux-api@...r.kernel.org
Cc: linux-mm@...ck.org
Cc: x86@...nel.org
Cc: torvalds@...ux-foundation.org
Cc: akpm@...ux-foundation.org
---

 b/arch/x86/entry/syscalls/syscall_32.tbl |    1 +
 b/arch/x86/entry/syscalls/syscall_64.tbl |    1 +
 2 files changed, 2 insertions(+)

diff -puN arch/x86/entry/syscalls/syscall_32.tbl~pkeys-85b-x86-mprotect_key arch/x86/entry/syscalls/syscall_32.tbl
--- a/arch/x86/entry/syscalls/syscall_32.tbl~pkeys-85b-x86-mprotect_key	2016-02-22 17:09:24.183334806 -0800
+++ b/arch/x86/entry/syscalls/syscall_32.tbl	2016-02-22 17:09:24.188335034 -0800
@@ -384,3 +384,4 @@
 375	i386	membarrier		sys_membarrier
 376	i386	mlock2			sys_mlock2
 377	i386	copy_file_range		sys_copy_file_range
+378	i386	pkey_mprotect		sys_pkey_mprotect
diff -puN arch/x86/entry/syscalls/syscall_64.tbl~pkeys-85b-x86-mprotect_key arch/x86/entry/syscalls/syscall_64.tbl
--- a/arch/x86/entry/syscalls/syscall_64.tbl~pkeys-85b-x86-mprotect_key	2016-02-22 17:09:24.185334897 -0800
+++ b/arch/x86/entry/syscalls/syscall_64.tbl	2016-02-22 17:09:24.188335034 -0800
@@ -333,6 +333,7 @@
 324	common	membarrier		sys_membarrier
 325	common	mlock2			sys_mlock2
 326	common	copy_file_range		sys_copy_file_range
+327	common	pkey_mprotect		sys_pkey_mprotect
 
 #
 # x32-specific system call numbers start at 512 to avoid cache impact
_