aboutsummaryrefslogtreecommitdiff
path: root/kernel/hw_breakpoint.c
diff options
context:
space:
mode:
authorPeter Zijlstra <a.p.zijlstra@chello.nl>2010-09-07 17:34:50 +0200
committerIngo Molnar <mingo@elte.hu>2010-09-09 20:46:34 +0200
commit89a1e18731959e9953fae15ddc1a983eb15a4f19 (patch)
tree5a52e77acb23f47254c94e23eb6ed35a422fce1d /kernel/hw_breakpoint.c
parent8dc85d547285668e509f86c177bcd4ea055bcaaf (diff)
perf: Provide a separate task context for swevents
Since software events are always schedulable, mixing them up with hardware events (who are not) can lead to funny scheduling oddities. Giving them their own context solves this. Signed-off-by: Peter Zijlstra <a.p.zijlstra@chello.nl> Cc: paulus <paulus@samba.org> Cc: stephane eranian <eranian@googlemail.com> Cc: Robert Richter <robert.richter@amd.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Lin Ming <ming.m.lin@intel.com> Cc: Yanmin <yanmin_zhang@linux.intel.com> LKML-Reference: <new-submission> Signed-off-by: Ingo Molnar <mingo@elte.hu>
Diffstat (limited to 'kernel/hw_breakpoint.c')
-rw-r--r--kernel/hw_breakpoint.c2
1 files changed, 2 insertions, 0 deletions
diff --git a/kernel/hw_breakpoint.c b/kernel/hw_breakpoint.c
index 6f150095caf..3b2aaffb65f 100644
--- a/kernel/hw_breakpoint.c
+++ b/kernel/hw_breakpoint.c
@@ -610,6 +610,8 @@ static void hw_breakpoint_stop(struct perf_event *bp, int flags)
}
static struct pmu perf_breakpoint = {
+ .task_ctx_nr = perf_sw_context, /* could eventually get its own */
+
.event_init = hw_breakpoint_event_init,
.add = hw_breakpoint_add,
.del = hw_breakpoint_del,