From: Frederic Weisbecker <fweisbec@gmail.com>
Date: Sat, 5 Dec 2009 08:44:31 +0000 (+0100)
Subject: hw-breakpoints: Use overflow handler instead of the event callback
X-Git-Tag: v2.6.33-rc1~306^2~51
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=b326e9560a28fc3e950637ef51847ed8f05c1335;p=pandora-kernel.git

hw-breakpoints: Use overflow handler instead of the event callback

struct perf_event::event callback was called when a breakpoint
triggers. But this is a rather opaque callback, pretty
tied-only to the breakpoint API and not really integrated into perf
as it triggers even when we don't overflow.

We prefer to use overflow_handler() as it fits into the perf events
rules, being called only when we overflow.

Reported-by: Peter Zijlstra <peterz@infradead.org>
Signed-off-by: Frederic Weisbecker <fweisbec@gmail.com>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Arnaldo Carvalho de Melo <acme@redhat.com>
Cc: "K. Prasad" <prasad@linux.vnet.ibm.com>
---

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