linux-kernel - [tip:timers/core] xtensa: Switch do_timer() to xtime

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Message-ID: <tip-d12b0e24c56c6fb2398609f26858e5278d688840@git.kernel.org>
Date:	Mon, 31 Jan 2011 14:11:00 GMT
From:	tip-bot for Torben Hohn <torbenh@....de>
To:	linux-tip-commits@...r.kernel.org
Cc:	linux-kernel@...r.kernel.org, hpa@...or.com, mingo@...hat.com,
	torbenh@....de, peterz@...radead.org, chris@...kel.net,
	tglx@...utronix.de
Subject: [tip:timers/core] xtensa: Switch do_timer() to xtime_update()

Commit-ID:  d12b0e24c56c6fb2398609f26858e5278d688840
Gitweb:     http://git.kernel.org/tip/d12b0e24c56c6fb2398609f26858e5278d688840
Author:     Torben Hohn <torbenh@....de>
AuthorDate: Thu, 27 Jan 2011 16:00:27 +0100
Committer:  Thomas Gleixner <tglx@...utronix.de>
CommitDate: Mon, 31 Jan 2011 14:55:46 +0100

xtensa: Switch do_timer() to xtime_update()

xtime_update() takes the xtime_lock itself.

set_linux_timer() does not need to be protected by xtime_lock.

[ tglx: This code is broken on SMP anyway. ]

Signed-off-by: Torben Hohn <torbenh@....de>
Cc: Chris Zankel <chris@...kel.net>
Cc: Peter Zijlstra <peterz@...radead.org>
Cc: johnstul@...ibm.com
Cc: hch@...radead.org
Cc: yong.zhang0@...il.com
LKML-Reference: <20110127150027.23248.61798.stgit@...alhost>
Signed-off-by: Thomas Gleixner <tglx@...utronix.de>
---
 arch/xtensa/kernel/time.c |    6 +-----
 1 files changed, 1 insertions(+), 5 deletions(-)

diff --git a/arch/xtensa/kernel/time.c b/arch/xtensa/kernel/time.c
index 19df764..f3e5eb4 100644
--- a/arch/xtensa/kernel/time.c
+++ b/arch/xtensa/kernel/time.c
@@ -96,16 +96,12 @@ again:
 		update_process_times(user_mode(get_irq_regs()));
 #endif
 
-		write_seqlock(&xtime_lock);
-
-		do_timer(1); /* Linux handler in kernel/timer.c */
+		xtime_update(1); /* Linux handler in kernel/time/timekeeping */
 
 		/* Note that writing CCOMPARE clears the interrupt. */
 
 		next += CCOUNT_PER_JIFFY;
 		set_linux_timer(next);
-
-		write_sequnlock(&xtime_lock);
 	}
 
 	/* Allow platform to do something useful (Wdog). */
--
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