From 1aabd67d2e97e6affdf5a7c65f442ac91ace3f85 Mon Sep 17 00:00:00 2001 From: Torben Hohn Date: Thu, 27 Jan 2011 15:59:56 +0100 Subject: ia64: Switch do_timer() to xtime_update() local_cpu_data->itm_next = new_itm; does not need to be protected by xtime_lock. xtime_update() takes the lock itself. Signed-off-by: Torben Hohn Cc: Fenghua Yu Cc: Tony Luck Cc: Peter Zijlstra Cc: johnstul@us.ibm.com Cc: hch@infradead.org Cc: yong.zhang0@gmail.com LKML-Reference: <20110127145956.23248.49107.stgit@localhost> Signed-off-by: Thomas Gleixner --- arch/ia64/xen/time.c | 13 +++++-------- 1 file changed, 5 insertions(+), 8 deletions(-) (limited to 'arch/ia64/xen') diff --git a/arch/ia64/xen/time.c b/arch/ia64/xen/time.c index c1c544513e8d..1f8244a78bee 100644 --- a/arch/ia64/xen/time.c +++ b/arch/ia64/xen/time.c @@ -139,14 +139,11 @@ consider_steal_time(unsigned long new_itm) run_posix_cpu_timers(p); delta_itm += local_cpu_data->itm_delta * (stolen + blocked); - if (cpu == time_keeper_id) { - write_seqlock(&xtime_lock); - do_timer(stolen + blocked); - local_cpu_data->itm_next = delta_itm + new_itm; - write_sequnlock(&xtime_lock); - } else { - local_cpu_data->itm_next = delta_itm + new_itm; - } + if (cpu == time_keeper_id) + xtime_update(stolen + blocked); + + local_cpu_data->itm_next = delta_itm + new_itm; + per_cpu(xen_stolen_time, cpu) += NS_PER_TICK * stolen; per_cpu(xen_blocked_time, cpu) += NS_PER_TICK * blocked; } -- cgit v1.2.1