diff options
| author | Peter Zijlstra <peterz@infradead.org> | 2022-11-21 15:57:44 +0100 |
|---|---|---|
| committer | Peter Zijlstra <peterz@infradead.org> | 2022-11-24 10:12:23 +0100 |
| commit | af169b7759a9b9369b5106cd07a25c57ce60119e (patch) | |
| tree | d1b7a94c16b74b8f9c83264ee1aa54d2e90c37c7 /kernel/events | |
| parent | eb7081409f94a9a8608593d0fb63a1aa3d6f95d8 (diff) | |
| download | linux-af169b7759a9b9369b5106cd07a25c57ce60119e.tar.gz | |
perf: Fixup SIGTRAP and sample_flags interaction
The perf_event_attr::sigtrap functionality relies on data->addr being
set. However commit 7b0846301531 ("perf: Use sample_flags for addr")
changed this to only initialize data->addr when not 0.
Fixes: 7b0846301531 ("perf: Use sample_flags for addr")
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Link: https://lkml.kernel.org/r/Y3426b4OimE%2FI5po%40hirez.programming.kicks-ass.net
Diffstat (limited to 'kernel/events')
| -rw-r--r-- | kernel/events/core.c | 5 |
1 files changed, 4 insertions, 1 deletions
diff --git a/kernel/events/core.c b/kernel/events/core.c index 884871427a94f..f2bb27e5c316b 100644 --- a/kernel/events/core.c +++ b/kernel/events/core.c @@ -9328,7 +9328,10 @@ static int __perf_event_overflow(struct perf_event *event, */ WARN_ON_ONCE(event->pending_sigtrap != pending_id); } - event->pending_addr = data->addr; + + event->pending_addr = 0; + if (data->sample_flags & PERF_SAMPLE_ADDR) + event->pending_addr = data->addr; irq_work_queue(&event->pending_irq); } |