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authorZi Yan2022-05-12 20:22:58 -0700
committerAndrew Morton2022-05-13 07:20:13 -0700
commit11ac3e87ce09c27f4587a8c4fe0829d814021a82 (patch)
treec08ccaeb2783f435b010e075ec44cff22634f87c /mm
parent6e263fff1de48fcd97b680b54cd8d1695fc3c776 (diff)
mm: cma: use pageblock_order as the single alignment
Now alloc_contig_range() works at pageblock granularity. Change CMA allocation, which uses alloc_contig_range(), to use pageblock_nr_pages alignment. Link: https://lkml.kernel.org/r/20220425143118.2850746-6-zi.yan@sent.com Signed-off-by: Zi Yan <ziy@nvidia.com> Cc: Christophe Leroy <christophe.leroy@csgroup.eu> Cc: David Hildenbrand <david@redhat.com> Cc: Eric Ren <renzhengeek@gmail.com> Cc: kernel test robot <lkp@intel.com> Cc: Mel Gorman <mgorman@techsingularity.net> Cc: Mike Rapoport <rppt@linux.ibm.com> Cc: Minchan Kim <minchan@kernel.org> 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')
-rw-r--r--mm/page_alloc.c4
1 files changed, 2 insertions, 2 deletions
diff --git a/mm/page_alloc.c b/mm/page_alloc.c
index 3d7de8a96143..732e01e9d0e0 100644
--- a/mm/page_alloc.c
+++ b/mm/page_alloc.c
@@ -9046,8 +9046,8 @@ int __alloc_contig_migrate_range(struct compact_control *cc,
* be either of the two.
* @gfp_mask: GFP mask to use during compaction
*
- * The PFN range does not have to be pageblock or MAX_ORDER_NR_PAGES
- * aligned. The PFN range must belong to a single zone.
+ * The PFN range does not have to be pageblock aligned. The PFN range must
+ * belong to a single zone.
*
* The first thing this routine does is attempt to MIGRATE_ISOLATE all
* pageblocks in the range. Once isolated, the pageblocks should not