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author | Avi Kivity <avi@redhat.com> | 2011-06-29 18:42:35 +0300 |
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committer | Ingo Molnar <mingo@elte.hu> | 2011-07-01 11:06:38 +0200 |
commit | 4dc0da86967d5463708631d02a70cfed5b104884 (patch) | |
tree | e09071a62f2457b710ff69df3be1bff39340a4c6 /sound/ppc/Makefile | |
parent | 89d6c0b5bdbb1927775584dcf532d98b3efe1477 (diff) | |
download | op-kernel-dev-4dc0da86967d5463708631d02a70cfed5b104884.zip op-kernel-dev-4dc0da86967d5463708631d02a70cfed5b104884.tar.gz |
perf: Add context field to perf_event
The perf_event overflow handler does not receive any caller-derived
argument, so many callers need to resort to looking up the perf_event
in their local data structure. This is ugly and doesn't scale if a
single callback services many perf_events.
Fix by adding a context parameter to perf_event_create_kernel_counter()
(and derived hardware breakpoints APIs) and storing it in the perf_event.
The field can be accessed from the callback as event->overflow_handler_context.
All callers are updated.
Signed-off-by: Avi Kivity <avi@redhat.com>
Signed-off-by: Peter Zijlstra <a.p.zijlstra@chello.nl>
Link: http://lkml.kernel.org/r/1309362157-6596-2-git-send-email-avi@redhat.com
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Diffstat (limited to 'sound/ppc/Makefile')
0 files changed, 0 insertions, 0 deletions