Commit-ID: f506b3dc0ec454a16d40cab9ee5d75435b39dc50 Gitweb: http://git.kernel.org/tip/f506b3dc0ec454a16d40cab9ee5d75435b39dc50 Author: Peter Zijlstra <a.p.zijlstra@xxxxxxxxx> AuthorDate: Thu, 26 May 2011 17:02:53 +0200 Committer: Ingo Molnar <mingo@xxxxxxx> CommitDate: Sat, 28 May 2011 17:04:59 +0200 perf: Fix SIGIO handling Vince noticed that unless we mmap() a buffer, SIGIO gets lost. So explicitly push the wakeup (including signals) when requested. Reported-by: Vince Weaver <vweaver1@xxxxxxxxxxxx> Signed-off-by: Peter Zijlstra <a.p.zijlstra@xxxxxxxxx> Cc: <stable@xxxxxxxxxx> Link: http://lkml.kernel.org/n/tip-2euus3f3x3dyvdk52cjxw8zu@xxxxxxxxxxxxxx Signed-off-by: Ingo Molnar <mingo@xxxxxxx> --- kernel/events/core.c | 8 ++++++++ 1 files changed, 8 insertions(+), 0 deletions(-) diff --git a/kernel/events/core.c b/kernel/events/core.c index c09767f..d863b3c 100644 --- a/kernel/events/core.c +++ b/kernel/events/core.c @@ -5028,6 +5028,14 @@ static int __perf_event_overflow(struct perf_event *event, int nmi, else perf_event_output(event, nmi, data, regs); + if (event->fasync && event->pending_kill) { + if (nmi) { + event->pending_wakeup = 1; + irq_work_queue(&event->pending); + } else + perf_event_wakeup(event); + } + return ret; } -- To unsubscribe from this list: send the line "unsubscribe linux-tip-commits" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
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