diff options
| author | Ye Liu <liuye@kylinos.cn> | 2026-04-09 09:43:22 +0800 |
|---|---|---|
| committer | Andrew Morton <akpm@linux-foundation.org> | 2026-05-28 21:04:49 -0700 |
| commit | 98e09ce7bb67902c452d22a2a10baf3f0951f3d2 (patch) | |
| tree | 2408cb1f68d0b9d0e22789d0fa299b54057f08dc /mm | |
| parent | db5e2c01ca3a8fba1c0687d7eec3ac701387a31f (diff) | |
mm/khugepaged: use ALIGN helpers for PMD alignment
PMD alignment in khugepaged is currently implemented using a mix of
rounding helpers and open-coded bitmask operations.
Use ALIGN() and ALIGN_DOWN() consistently for PMD-sized address range
alignment, matching the preferred style for address and size handling.
No functional change intended.
Link: https://lore.kernel.org/20260409014323.2385982-1-ye.liu@linux.dev
Signed-off-by: Ye Liu <liuye@kylinos.cn>
Reviewed-by: Zi Yan <ziy@nvidia.com>
Reviewed-by: Barry Song <baohua@kernel.org>
Reviewed-by: Lorenzo Stoakes <ljs@kernel.org>
Acked-by: David Hildenbrand (Arm) <david@kernel.org>
Reviewed-by: SeongJae Park <sj@kernel.org>
Cc: Baolin Wang <baolin.wang@linux.alibaba.com>
Cc: Dev Jain <dev.jain@arm.com>
Cc: Lance Yang <lance.yang@linux.dev>
Cc: Liam Howlett <liam@infradead.org>
Cc: Liu Ye <liuye@kylinos.cn>
Cc: Nico Pache <npache@redhat.com>
Cc: Ryan Roberts <ryan.roberts@arm.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Diffstat (limited to 'mm')
| -rw-r--r-- | mm/khugepaged.c | 8 |
1 files changed, 4 insertions, 4 deletions
diff --git a/mm/khugepaged.c b/mm/khugepaged.c index b8452dbdb043..5f4e009593e0 100644 --- a/mm/khugepaged.c +++ b/mm/khugepaged.c @@ -2528,8 +2528,8 @@ static void collapse_scan_mm_slot(unsigned int progress_max, cc->progress++; continue; } - hstart = round_up(vma->vm_start, HPAGE_PMD_SIZE); - hend = round_down(vma->vm_end, HPAGE_PMD_SIZE); + hstart = ALIGN(vma->vm_start, HPAGE_PMD_SIZE); + hend = ALIGN_DOWN(vma->vm_end, HPAGE_PMD_SIZE); if (khugepaged_scan.address > hend) { cc->progress++; continue; @@ -2845,8 +2845,8 @@ int madvise_collapse(struct vm_area_struct *vma, unsigned long start, mmgrab(mm); lru_add_drain_all(); - hstart = (start + ~HPAGE_PMD_MASK) & HPAGE_PMD_MASK; - hend = end & HPAGE_PMD_MASK; + hstart = ALIGN(start, HPAGE_PMD_SIZE); + hend = ALIGN_DOWN(end, HPAGE_PMD_SIZE); for (addr = hstart; addr < hend; addr += HPAGE_PMD_SIZE) { enum scan_result result = SCAN_FAIL; |