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| author | Kan Liang <kan.liang@linux.intel.com> | 2025-08-11 11:26:44 -0700 |
|---|---|---|
| committer | Peter Zijlstra <peterz@infradead.org> | 2025-09-03 10:10:59 +0200 |
| commit | 18dbcbfabfffc4a5d3ea10290c5ad27f22b0d240 (patch) | |
| tree | 5f1ffc59d8e5b90a9dd54520cbb3d9ea45ea6437 /scripts/kernel-doc.py | |
| parent | b320789d6883cc00ac78ce83bccbfe7ed58afcf0 (diff) | |
perf: Fix the POLL_HUP delivery breakage
The event_limit can be set by the PERF_EVENT_IOC_REFRESH to limit the
number of events. When the event_limit reaches 0, the POLL_HUP signal
should be sent. But it's missed.
The corresponding counter should be stopped when the event_limit reaches
0. It was implemented in the ARCH-specific code. However, since the
commit 9734e25fbf5a ("perf: Fix the throttle logic for a group"), all
the ARCH-specific code has been moved to the generic code. The code to
handle the event_limit was lost.
Add the event->pmu->stop(event, 0); back.
Fixes: 9734e25fbf5a ("perf: Fix the throttle logic for a group")
Closes: https://lore.kernel.org/lkml/aICYAqM5EQUlTqtX@li-2b55cdcc-350b-11b2-a85c-a78bff51fc11.ibm.com/
Reported-by: Sumanth Korikkar <sumanthk@linux.ibm.com>
Signed-off-by: Kan Liang <kan.liang@linux.intel.com>
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Tested-by: Sumanth Korikkar <sumanthk@linux.ibm.com>
Link: https://lkml.kernel.org/r/20250811182644.1305952-1-kan.liang@linux.intel.com
Diffstat (limited to 'scripts/kernel-doc.py')
0 files changed, 0 insertions, 0 deletions