diff options
| author | Kaushlendra Kumar <kaushlendra.kumar@intel.com> | 2025-12-09 06:17:45 +0300 |
|---|---|---|
| committer | Andrew Morton <akpm@linux-foundation.org> | 2026-01-21 06:24:42 +0300 |
| commit | 9f5edd785da3cf373285259928d7f1f08c9ce758 (patch) | |
| tree | 6463d7b66eff0472bb5a02ecefa50eae0b671700 | |
| parent | 6e4930e33329eec80dd245f28b52202271f5fb28 (diff) | |
| download | linux-9f5edd785da3cf373285259928d7f1f08c9ce758.tar.xz | |
tools/mm/thp_swap_allocator_test: fix small folio alignment
Use ALIGNMENT_SMALLFOLIO instead of ALIGNMENT_MTHP when allocating small
folios to ensure correct memory alignment for the test case.
Before: test allocates small folios with 64KB alignment
(ALIGNMENT_MTHP) when only 4KB alignment (ALIGNMENT_SMALLFOLIO) is
needed. This wastes address space and may cause allocation failures on
systems with fragmented memory.
Worst-case impact: this only affects thp_swap_allocator_test tool
behavior.
Link: https://lkml.kernel.org/r/20251209031745.2723120-1-kaushlendra.kumar@intel.com
Signed-off-by: Kaushlendra Kumar <kaushlendra.kumar@intel.com>
Reviewed-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
| -rw-r--r-- | tools/mm/thp_swap_allocator_test.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/tools/mm/thp_swap_allocator_test.c b/tools/mm/thp_swap_allocator_test.c index 83afc52275a5..d4434df3dcff 100644 --- a/tools/mm/thp_swap_allocator_test.c +++ b/tools/mm/thp_swap_allocator_test.c @@ -142,7 +142,7 @@ int main(int argc, char *argv[]) } if (use_small_folio) { - mem2 = aligned_alloc_mem(MEMSIZE_SMALLFOLIO, ALIGNMENT_MTHP); + mem2 = aligned_alloc_mem(MEMSIZE_SMALLFOLIO, ALIGNMENT_SMALLFOLIO); if (mem2 == NULL) { fprintf(stderr, "Failed to allocate small folios memory\n"); free(mem1); |