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From: Torben Hohn <torbenh@gmx.de>
To: linux-kernel@vger.kernel.org
Cc: tglx@linutronix.de, johnstul@us.ibm.com, hch@infradead.org,
	yong.zhang0@gmail.com, Torben Hohn <torbenh@gmx.de>
Subject: [PATCH 17/18] xtensa: switch do_timer() to xtime_update()
Date: Sat, 22 Jan 2011 00:07:03 +0100	[thread overview]
Message-ID: <1295651224-29823-18-git-send-email-torbenh@gmx.de> (raw)
In-Reply-To: <1295651224-29823-1-git-send-email-torbenh@gmx.de>

xtime_update() takes the xtime_lock itself.

i dont believe that set_linux_timer() needs to be protected by a lock.

Signed-off-by: Torben Hohn <torbenh@gmx.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). */
-- 
1.7.2.3


  parent reply	other threads:[~2011-01-22  0:14 UTC|newest]

Thread overview: 37+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2011-01-21 23:06 make arch code use xtime_update() instead of do_timer() Torben Hohn
2011-01-21 23:06 ` [PATCH 01/18] move do_timer() from kernel/timer.c into kernel/time/timekeeping.c Torben Hohn
2011-01-22  9:45   ` Thomas Gleixner
2011-01-24 20:32   ` john stultz
2011-01-24 22:10     ` Thomas Gleixner
2011-01-24 22:21       ` Peter Zijlstra
2011-01-24 22:44         ` Thomas Gleixner
2011-01-25  9:08           ` Peter Zijlstra
2011-01-25 10:34             ` Peter Zijlstra
2011-01-25 16:51               ` Peter Zijlstra
2011-01-26  5:56                 ` Yong Zhang
2011-01-26  6:49                   ` Yong Zhang
2011-01-26 10:03                   ` Peter Zijlstra
2011-01-26 11:11                     ` Yong Zhang
2011-01-21 23:06 ` [PATCH 02/18] provide xtime_update() which does not require holding xtime_lock like do_timer() Torben Hohn
2011-01-22 10:36   ` Thomas Gleixner
2011-01-21 23:06 ` [PATCH 03/18] alpha: change do_timer() to xtime_update() Torben Hohn
2011-01-21 23:06 ` [PATCH 04/18] arm: switch from " Torben Hohn
2011-01-21 23:06 ` [PATCH 05/18] arm/mach-clps711x: switch " Torben Hohn
2011-01-21 23:06 ` [PATCH 06/18] blackfin: switch from " Torben Hohn
2011-01-21 23:06 ` [PATCH 07/18] cris/arch-v10: switch " Torben Hohn
2011-01-21 23:06 ` [PATCH 08/18] cris/arch-v32: " Torben Hohn
2011-01-21 23:06 ` [PATCH 09/18] frv: " Torben Hohn
2011-01-22 10:01   ` Thomas Gleixner
2011-01-24 12:51     ` torbenh
2011-01-24 13:09       ` Thomas Gleixner
2011-01-21 23:06 ` [PATCH 10/18] h8300: " Torben Hohn
2011-01-21 23:06 ` [PATCH 11/18] ia64: " Torben Hohn
2011-01-21 23:06 ` [PATCH 12/18] m32r: switch from " Torben Hohn
2011-01-21 23:06 ` [PATCH 13/18] m68k: switch " Torben Hohn
2011-01-21 23:07 ` [PATCH 14/18] mn10300: switch do_timer() to xtimer_update() Torben Hohn
2011-01-21 23:07 ` [PATCH 15/18] parisc: switch do_timer() to xtime_update() Torben Hohn
2011-01-21 23:07 ` [PATCH 16/18] sparc: " Torben Hohn
2011-01-22  0:51   ` David Miller
2011-01-21 23:07 ` Torben Hohn [this message]
2011-01-21 23:07 ` [PATCH 18/18] make do_timer() and xtime_lock private to the timer code Torben Hohn
2011-01-22 10:14 ` make arch code use xtime_update() instead of do_timer() Thomas Gleixner

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