Ksawlii/kernel_samsung_a53x
1
0
Fork 0
Code Issues Pull requests Projects Releases Packages Wiki Activity Actions

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

Browse source 
[ 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: 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
Signed-off-by: Sasha Levin <sashal@kernel.org>
This commit is contained in:
Adrian Hunter 2024-06-24 23:10:58 +03:00 committed by Ksawlii
parent 7947c2a479
commit c06300c46d
1 changed files with 1 additions and 1 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

2
kernel/events/internal.h
View file

@ -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, ...) \