diff options
| author | Sebastian Andrzej Siewior <bigeasy@linutronix.de> | 2024-07-04 19:03:35 +0200 |
|---|---|---|
| committer | Peter Zijlstra <peterz@infradead.org> | 2024-07-09 13:26:34 +0200 |
| commit | 058244c683111d44a5de16ac74f19a1754dd7a0c (patch) | |
| tree | ee99bc0d607fbc46c481256f634ab5c4da6054f5 /kernel/task_work.c | |
| parent | 3a5465418f5fd970e86a86c7f4075be262682840 (diff) | |
perf: Move irq_work_queue() where the event is prepared.
Only if perf_event::pending_sigtrap is zero, the irq_work accounted by
increminging perf_event::nr_pending. The member perf_event::pending_addr
might be overwritten by a subsequent event if the signal was not yet
delivered and is expected. The irq_work will not be enqeueued again
because it has a check to be only enqueued once.
Move irq_work_queue() to where the counter is incremented and
perf_event::pending_sigtrap is set to make it more obvious that the
irq_work is scheduled once.
Signed-off-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Tested-by: Marco Elver <elver@google.com>
Tested-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Link: https://lore.kernel.org/r/20240704170424.1466941-2-bigeasy@linutronix.de
Diffstat (limited to 'kernel/task_work.c')
0 files changed, 0 insertions, 0 deletions