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| author | Kefeng Wang <wangkefeng.wang@huawei.com> | 2022-09-07 14:08:44 +0800 |
|---|---|---|
| committer | Andrew Morton <akpm@linux-foundation.org> | 2022-10-03 14:03:04 -0700 |
| commit | ee0913c4719610204315a0d8a35122c6233249e0 (patch) | |
| tree | f3ac87c8918f3a5f5440fc5475f51608f3add9e0 /mm/memory_hotplug.c | |
| parent | 5f7fa13fa858c17580ed513bd5e0a4b36d68fdd6 (diff) | |
| download | lwn-ee0913c4719610204315a0d8a35122c6233249e0.tar.gz lwn-ee0913c4719610204315a0d8a35122c6233249e0.zip | |
mm: add pageblock_aligned() macro
Add pageblock_aligned() and use it to simplify code.
Link: https://lkml.kernel.org/r/20220907060844.126891-3-wangkefeng.wang@huawei.com
Signed-off-by: Kefeng Wang <wangkefeng.wang@huawei.com>
Acked-by: Mike Rapoport <rppt@linux.ibm.com>
Cc: David Hildenbrand <david@redhat.com>
Cc: Oscar Salvador <osalvador@suse.de>
Cc: Vlastimil Babka <vbabka@suse.cz>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Diffstat (limited to 'mm/memory_hotplug.c')
| -rw-r--r-- | mm/memory_hotplug.c | 6 |
1 files changed, 2 insertions, 4 deletions
diff --git a/mm/memory_hotplug.c b/mm/memory_hotplug.c index 9ae1f98548b1..fd40f7e9f176 100644 --- a/mm/memory_hotplug.c +++ b/mm/memory_hotplug.c @@ -1085,8 +1085,7 @@ int __ref online_pages(unsigned long pfn, unsigned long nr_pages, * of the physical memory space for vmemmaps. That space is pageblock * aligned. */ - if (WARN_ON_ONCE(!nr_pages || - !IS_ALIGNED(pfn, pageblock_nr_pages) || + if (WARN_ON_ONCE(!nr_pages || !pageblock_aligned(pfn) || !IS_ALIGNED(pfn + nr_pages, PAGES_PER_SECTION))) return -EINVAL; @@ -1806,8 +1805,7 @@ int __ref offline_pages(unsigned long start_pfn, unsigned long nr_pages, * of the physical memory space for vmemmaps. That space is pageblock * aligned. */ - if (WARN_ON_ONCE(!nr_pages || - !IS_ALIGNED(start_pfn, pageblock_nr_pages) || + if (WARN_ON_ONCE(!nr_pages || !pageblock_aligned(start_pfn) || !IS_ALIGNED(start_pfn + nr_pages, PAGES_PER_SECTION))) return -EINVAL; |