Commit-ID: 22b7fcdae562b6792b3f5517e89fd7e0337180ae Gitweb: http://git.kernel.org/tip/22b7fcdae562b6792b3f5517e89fd7e0337180ae Author: Torben Hohn <torbenh@xxxxxx> AuthorDate: Thu, 27 Jan 2011 16:00:12 +0100 Committer: Thomas Gleixner <tglx@xxxxxxxxxxxxx> CommitDate: Wed, 9 Feb 2011 16:17:24 +0100 mn10300: Switch do_timer() to xtimer_update() Only one CPU gets the timer interrupt so mn10300_last_tsc does not need to be protected by xtime lock. Remove xtime lovking and use xtime_update() which does the locking itself. Signed-off-by: Torben Hohn <torbenh@xxxxxx> Cc: David Howells <dhowells@xxxxxxxxxx> Cc: Koichi Yasutake <yasutake.koichi@xxxxxxxxxxxxxxxx> LKML-Reference: <20110127150011.23248.62040.stgit@localhost> Signed-off-by: Thomas Gleixner <tglx@xxxxxxxxxxxxx> --- arch/mn10300/kernel/time.c | 6 +----- 1 files changed, 1 insertions(+), 5 deletions(-) diff --git a/arch/mn10300/kernel/time.c b/arch/mn10300/kernel/time.c index 75da468..5b95500 100644 --- a/arch/mn10300/kernel/time.c +++ b/arch/mn10300/kernel/time.c @@ -104,8 +104,6 @@ static irqreturn_t timer_interrupt(int irq, void *dev_id) unsigned tsc, elapse; irqreturn_t ret; - write_seqlock(&xtime_lock); - while (tsc = get_cycles(), elapse = tsc - mn10300_last_tsc, /* time elapsed since last * tick */ @@ -114,11 +112,9 @@ static irqreturn_t timer_interrupt(int irq, void *dev_id) mn10300_last_tsc += MN10300_TSC_PER_HZ; /* advance the kernel's time tracking system */ - do_timer(1); + xtime_update(1); } - write_sequnlock(&xtime_lock); - ret = local_timer_interrupt(); #ifdef CONFIG_SMP send_IPI_allbutself(LOCAL_TIMER_IPI); -- To unsubscribe from this list: send the line "unsubscribe linux-tip-commits" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
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