From: Ingo Molnar Date: Mon, 5 Jul 2010 06:30:55 +0000 (+0200) Subject: Merge commit 'v2.6.35-rc4' into perf/core X-Git-Tag: v2.6.36-rc1~532^2~41 X-Git-Url: https://bbs.cooldavid.org/git/?a=commitdiff_plain;h=08f8ba07998ab1b9efcdd3f28dadf6866a605ddb;p=net-next-2.6.git Merge commit 'v2.6.35-rc4' into perf/core Merge reason: Pick up the latest perf fixes Signed-off-by: Ingo Molnar --- 08f8ba07998ab1b9efcdd3f28dadf6866a605ddb diff --cc arch/arm/kernel/perf_event.c index 5b7cfafc072,de12536d687..417c392ddf1 --- a/arch/arm/kernel/perf_event.c +++ b/arch/arm/kernel/perf_event.c @@@ -201,13 -201,13 +201,13 @@@ armpmu_event_update(struct perf_event * { int shift = 64 - 32; s64 prev_raw_count, new_raw_count; - s64 delta; + u64 delta; again: - prev_raw_count = atomic64_read(&hwc->prev_count); + prev_raw_count = local64_read(&hwc->prev_count); new_raw_count = armpmu->read_counter(idx); - if (atomic64_cmpxchg(&hwc->prev_count, prev_raw_count, + if (local64_cmpxchg(&hwc->prev_count, prev_raw_count, new_raw_count) != prev_raw_count) goto again;