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| author |   Peter Zijlstra <peterz@infradead.org> | 2020-10-30 14:58:48 +0100 |
|---|---|---|
| committer | Peter Zijlstra <peterz@infradead.org> | 2020-11-09 18:12:33 +0100 |
| commit | 9dfa9a5c9bae3417b87824e7ac73b00c10b6a874 (patch) | |
| tree | 2c36d0070f18e59ff947b56b4ca53ffad5be1744 /kernel/events | |
| parent | perf: Reduce stack usage of perf_output_begin() (diff) | |
| download | linux-dev-9dfa9a5c9bae3417b87824e7ac73b00c10b6a874.tar.xz linux-dev-9dfa9a5c9bae3417b87824e7ac73b00c10b6a874.zip | |
perf/x86: Reduce stack usage for x86_pmu::drain_pebs()
intel_pmu_drain_pebs_*() is typically called from handle_pmi_common(),
both have an on-stack struct perf_sample_data, which is *big*. Rewire
things so that drain_pebs() can use the one handle_pmi_common() has.
Reported-by: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Link: https://lkml.kernel.org/r/20201030151955.054099690@infradead.org
Diffstat (limited to 'kernel/events')
0 files changed, 0 insertions, 0 deletions