linux-kernel - [PATCH 2/7] wire up sys_time_change

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Message-Id: <1283255151-6364-2-git-send-email-virtuoso@slind.org>
Date:	Tue, 31 Aug 2010 14:45:46 +0300
From:	Alexander Shishkin <virtuoso@...nd.org>
To:	lkml@...r.kernel.org
Cc:	Alexander Shishkin <virtuoso@...nd.org>,
	Russell King <linux@....linux.org.uk>,
	Andrew Morton <akpm@...ux-foundation.org>,
	David Howells <dhowells@...hat.com>,
	Christoph Hellwig <hch@....de>,
	"H. Peter Anvin" <hpa@...or.com>,
	linux-arm-kernel@...ts.infradead.org, linux-kernel@...r.kernel.org
Subject: [PATCH 2/7] wire up sys_time_change_notify() on ARM

sys_time_change_notify() is a new syscall with number and types of
parameters such that no ARM-specific processing is needed.

Tested with 2.6.36-rc3 using Documentation/time-change-notify-example.c.

Signed-off-by: Alexander Shishkin <virtuoso@...nd.org>
CC: Russell King <linux@....linux.org.uk>
CC: Andrew Morton <akpm@...ux-foundation.org>
CC: David Howells <dhowells@...hat.com>
CC: Christoph Hellwig <hch@....de>
CC: "H. Peter Anvin" <hpa@...or.com>
CC: linux-arm-kernel@...ts.infradead.org
CC: linux-kernel@...r.kernel.org
---
 arch/arm/include/asm/unistd.h |    1 +
 arch/arm/kernel/calls.S       |    1 +
 2 files changed, 2 insertions(+), 0 deletions(-)

diff --git a/arch/arm/include/asm/unistd.h b/arch/arm/include/asm/unistd.h
index d02cfb6..ce38a6f 100644
--- a/arch/arm/include/asm/unistd.h
+++ b/arch/arm/include/asm/unistd.h
@@ -393,6 +393,7 @@
 #define __NR_perf_event_open		(__NR_SYSCALL_BASE+364)
 #define __NR_recvmmsg			(__NR_SYSCALL_BASE+365)
 #define __NR_accept4			(__NR_SYSCALL_BASE+366)
+#define __NR_time_change_notify		(__NR_SYSCALL_BASE+367)
 
 /*
  * The following SWIs are ARM private.
diff --git a/arch/arm/kernel/calls.S b/arch/arm/kernel/calls.S
index afeb71f..f1e64ba 100644
--- a/arch/arm/kernel/calls.S
+++ b/arch/arm/kernel/calls.S
@@ -376,6 +376,7 @@
 		CALL(sys_perf_event_open)
 /* 365 */	CALL(sys_recvmmsg)
 		CALL(sys_accept4)
+		CALL(sys_time_change_notify)
 #ifndef syscalls_counted
 .equ syscalls_padding, ((NR_syscalls + 3) & ~3) - NR_syscalls
 #define syscalls_counted
-- 
1.7.1

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