diff options
| author | Adrian Hunter <adrian.hunter@intel.com> | 2024-06-24 23:10:58 +0300 |
|---|---|---|
| committer | Peter Zijlstra <peterz@infradead.org> | 2024-07-04 16:00:22 +0200 |
| commit | 3df94a5b1078dfe2b0c03f027d018800faf44c82 (patch) | |
| tree | 0a0add6a0d0a9af476b5efd535691239f130907c /kernel/events | |
| parent | 3520b251dcae2b4a27b95cd6f745c54fd658bda5 (diff) | |
perf: Fix perf_aux_size() for greater-than 32-bit size
perf_buffer->aux_nr_pages uses a 32-bit type, so a cast is needed to
calculate a 64-bit size.
Fixes: 45bfb2e50471 ("perf: Add AUX area to ring buffer for raw data streams")
Signed-off-by: Adrian Hunter <adrian.hunter@intel.com>
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Link: https://lore.kernel.org/r/20240624201101.60186-5-adrian.hunter@intel.com
Diffstat (limited to 'kernel/events')
| -rw-r--r-- | kernel/events/internal.h | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/kernel/events/internal.h b/kernel/events/internal.h index 5150d5f84c03..386d21c7edfa 100644 --- a/kernel/events/internal.h +++ b/kernel/events/internal.h @@ -128,7 +128,7 @@ static inline unsigned long perf_data_size(struct perf_buffer *rb) static inline unsigned long perf_aux_size(struct perf_buffer *rb) { - return rb->aux_nr_pages << PAGE_SHIFT; + return (unsigned long)rb->aux_nr_pages << PAGE_SHIFT; } #define __DEFINE_OUTPUT_COPY_BODY(advance_buf, memcpy_func, ...) \ |