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perf: Fix perf_aux_size() for greater-than 32-bit size

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BugLink: https://bugs.launchpad.net/bugs/2083196

[ Upstream commit 3df94a5b1078dfe2b0c03f027d018800faf44c82 ]

perf_buffer->aux_nr_pages uses a 32-bit type, so a cast is needed to
calculate a 64-bit size.

Fixes: 45bfb2e504 ("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
Signed-off-by: Sasha Levin <sashal@kernel.org>
Signed-off-by: Portia Stephens <portia.stephens@canonical.com>
Signed-off-by: Roxana Nicolescu <roxana.nicolescu@canonical.com>
This commit is contained in:
Adrian Hunter
2024-06-24 23:10:58 +03:00
committed by Mehmet Basaran
parent e44b66a7e5
commit 4c2eeebcab
1 changed files with 1 additions and 1 deletions
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kernel/events/internal.h
+1 -1
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@@ -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, ...) \