Messages in this thread | | | Date | Thu, 8 Apr 2010 23:22:05 +0200 | Subject | Re: [PATCH] perf_events: fix bogus warn_on(_once) in perf_prepare_sample() | From | Stephane Eranian <> |
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On Thu, Apr 8, 2010 at 11:17 PM, Frederic Weisbecker <fweisbec@gmail.com> wrote: > On Thu, Apr 08, 2010 at 11:14:15PM +0200, Stephane Eranian wrote: >> On Thu, Apr 8, 2010 at 11:11 PM, Peter Zijlstra <peterz@infradead.org> wrote: >> > On Thu, 2010-04-08 at 23:08 +0200, Stephane Eranian wrote: >> >> >> >> Are you suggesting you add some padding the PEBS raw sample you >> >> return as PERF_SAMPLE_RAW? Then you need to define what RAW >> >> actually means? Seems here, it would mean more than what the >> >> HW returns. >> > >> > Well, RAW doesn't mean anything much at all, its really a fugly pass >> > some crap around thing. >> > >> > So yeah, adding padding seems just fine. >> > >> I would rather see size as u64. Who's using raw today anyway? > > > The trace events. Hence the size of the size shouldn't be touched, it > is an ABI now.
Given your alignment constraints, it seems like it was a bad choice to pick u32 for size to begin with.
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