diff options
| author | Thomas Gleixner <tglx@linutronix.de> | 2025-08-12 12:38:59 +0200 |
|---|---|---|
| committer | Peter Zijlstra <peterz@infradead.org> | 2025-08-15 13:12:58 +0200 |
| commit | e8c4f6ee8eeed8e02800bed6afb9aa22fc3476a1 (patch) | |
| tree | 77c3efc5364044bba53fdfbc078c8802fecc199e /kernel | |
| parent | Linux 6.17-rc1 (diff) | |
| download | linux-e8c4f6ee8eeed8e02800bed6afb9aa22fc3476a1.tar.gz linux-e8c4f6ee8eeed8e02800bed6afb9aa22fc3476a1.zip | |
perf: Remove redundant condition for AUX buffer size
It is already checked whether the VMA size is the same as
nr_pages * PAGE_SIZE, so later checking both:
aux_size == vma_size && aux_size == nr_pages * PAGE_SIZE
is redundant. Remove the vma_size check as nr_pages is what is actually
used in the allocation function. That prepares for splitting out the buffer
allocation into separate functions, so that only nr_pages needs to be
handed in.
No functional change.
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Reviewed-by: Lorenzo Stoakes <lorenzo.stoakes@oracle.com>
Link: https://lore.kernel.org/r/20250812104018.424519320@infradead.org
Diffstat (limited to 'kernel')
| -rw-r--r-- | kernel/events/core.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/kernel/events/core.c b/kernel/events/core.c index 8060c2857bb2..eea3a7d6c61d 100644 --- a/kernel/events/core.c +++ b/kernel/events/core.c @@ -7043,7 +7043,7 @@ static int perf_mmap(struct file *file, struct vm_area_struct *vma) if (rb_has_aux(rb) && rb->aux_pgoff != vma->vm_pgoff) goto aux_unlock; - if (aux_size != vma_size || aux_size != nr_pages * PAGE_SIZE) + if (aux_size != nr_pages * PAGE_SIZE) goto aux_unlock; /* already mapped with a different size */ |