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authorTorben Hohn <torbenh@gmx.de>2011-01-27 15:59:56 +0100
committerThomas Gleixner <tglx@linutronix.de>2011-01-31 14:55:45 +0100
commit1aabd67d2e97e6affdf5a7c65f442ac91ace3f85 (patch)
treeddebf04e61ec7c436b2b9bb6a55bf58b0c6e75e4 /arch/ia64/xen
parentdaad8b581e7f5e21a2f79e49d57d4f6a73b26510 (diff)
downloadop-kernel-dev-1aabd67d2e97e6affdf5a7c65f442ac91ace3f85.zip
op-kernel-dev-1aabd67d2e97e6affdf5a7c65f442ac91ace3f85.tar.gz
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 <torbenh@gmx.de> Cc: Fenghua Yu <fenghua.yu@intel.com> Cc: Tony Luck <tony.luck@intel.com> Cc: Peter Zijlstra <peterz@infradead.org> 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 <tglx@linutronix.de>
Diffstat (limited to 'arch/ia64/xen')
-rw-r--r--arch/ia64/xen/time.c13
1 files changed, 5 insertions, 8 deletions
diff --git a/arch/ia64/xen/time.c b/arch/ia64/xen/time.c
index c1c5445..1f8244a 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;
}
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