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| author | Alexander Shishkin <alexander.shishkin@linux.intel.com> | 2016-04-28 18:35:44 +0300 |
|---|---|---|
| committer | Ingo Molnar <mingo@kernel.org> | 2016-05-05 11:16:29 +0300 |
| commit | 1b6de5917172967acd8db4d222df4225d23a8a60 (patch) | |
| tree | 111bb93461f8df8a32c2ee6d462d9bd76ad9175c | |
| parent | 65c7e6f1c4810e9bce935520f44f6d2613cd1b40 (diff) | |
| download | linux-1b6de5917172967acd8db4d222df4225d23a8a60.tar.xz | |
perf/x86/intel/pt: Convert ACCESS_ONCE()s
This patch converts remaining ACCESS_ONCE() instances into READ_ONCE()
and WRITE_ONCE() as appropriate.
Signed-off-by: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Cc: Arnaldo Carvalho de Melo <acme@infradead.org>
Cc: Arnaldo Carvalho de Melo <acme@redhat.com>
Cc: Borislav Petkov <bp@alien8.de>
Cc: Jiri Olsa <jolsa@redhat.com>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Mathieu Poirier <mathieu.poirier@linaro.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Stephane Eranian <eranian@google.com>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: Vince Weaver <vincent.weaver@maine.edu>
Cc: vince@deater.net
Link: http://lkml.kernel.org/r/1461857746-31346-2-git-send-email-alexander.shishkin@linux.intel.com
Signed-off-by: Ingo Molnar <mingo@kernel.org>
| -rw-r--r-- | arch/x86/events/intel/pt.c | 6 |
1 files changed, 3 insertions, 3 deletions
diff --git a/arch/x86/events/intel/pt.c b/arch/x86/events/intel/pt.c index c3a359cf670e..54fa238d84d5 100644 --- a/arch/x86/events/intel/pt.c +++ b/arch/x86/events/intel/pt.c @@ -1135,7 +1135,7 @@ void intel_pt_interrupt(void) * after PT has been disabled by pt_event_stop(). Make sure we don't * do anything (particularly, re-enable) for this event here. */ - if (!ACCESS_ONCE(pt->handle_nmi)) + if (!READ_ONCE(pt->handle_nmi)) return; /* @@ -1237,7 +1237,7 @@ static void pt_event_start(struct perf_event *event, int mode) goto fail_end_stop; } - ACCESS_ONCE(pt->handle_nmi) = 1; + WRITE_ONCE(pt->handle_nmi, 1); hwc->state = 0; pt_config_buffer(buf->cur->table, buf->cur_idx, @@ -1260,7 +1260,7 @@ static void pt_event_stop(struct perf_event *event, int mode) * Protect against the PMI racing with disabling wrmsr, * see comment in intel_pt_interrupt(). */ - ACCESS_ONCE(pt->handle_nmi) = 0; + WRITE_ONCE(pt->handle_nmi, 0); pt_config_stop(event); |