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authorPeter Zijlstra <a.p.zijlstra@chello.nl>2009-03-19 15:26:11 -0400
committerIngo Molnar <mingo@elte.hu>2009-04-06 03:30:15 -0400
commit01ef09d9ffb5ce9f8d62d1e5206da3d5ca612acc (patch)
tree7259d26f86fa93e7d50f9d886f62b2a3054aa4c3 /include/linux/init_task.h
parentb6c5a71da1477d261bc36254fe1f20d32b57598d (diff)
perf_counter: fix uninitialized usage of event_list
Impact: fix boot crash When doing the generic context switch event I ran into some early boot hangs, which were caused by inf func recursion (event, fault, event, fault). I eventually tracked it down to event_list not being initialized at the time of the first event. Fix this. Signed-off-by: Peter Zijlstra <a.p.zijlstra@chello.nl> Cc: Paul Mackerras <paulus@samba.org> Cc: Steven Rostedt <rostedt@goodmis.org> Orig-LKML-Reference: <20090319194233.195392657@chello.nl> Signed-off-by: Ingo Molnar <mingo@elte.hu>
Diffstat (limited to 'include/linux/init_task.h')
-rw-r--r--include/linux/init_task.h2
1 files changed, 2 insertions, 0 deletions
diff --git a/include/linux/init_task.h b/include/linux/init_task.h
index 219748d00262..ca226a91abee 100644
--- a/include/linux/init_task.h
+++ b/include/linux/init_task.h
@@ -124,6 +124,8 @@ extern struct cred init_cred;
124# define INIT_PERF_COUNTERS(tsk) \ 124# define INIT_PERF_COUNTERS(tsk) \
125 .perf_counter_ctx.counter_list = \ 125 .perf_counter_ctx.counter_list = \
126 LIST_HEAD_INIT(tsk.perf_counter_ctx.counter_list), \ 126 LIST_HEAD_INIT(tsk.perf_counter_ctx.counter_list), \
127 .perf_counter_ctx.event_list = \
128 LIST_HEAD_INIT(tsk.perf_counter_ctx.event_list), \
127 .perf_counter_ctx.lock = \ 129 .perf_counter_ctx.lock = \
128 __SPIN_LOCK_UNLOCKED(tsk.perf_counter_ctx.lock), 130 __SPIN_LOCK_UNLOCKED(tsk.perf_counter_ctx.lock),
129#else 131#else