From: Avi Kivity Date: Wed, 29 Jun 2011 15:42:35 +0000 (+0300) Subject: perf: Add context field to perf_event X-Git-Tag: v3.1-rc1~299^2~22 X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=4dc0da86967d5463708631d02a70cfed5b104884;p=pandora-kernel.git 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 Signed-off-by: Peter Zijlstra Link: http://lkml.kernel.org/r/1309362157-6596-2-git-send-email-avi@redhat.com Signed-off-by: Ingo Molnar --- Reading git-diff-tree failed