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mm/compaction: merge end_pfn boundary check in isolate_freepages_range

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Merge the end_pfn boundary check for single page block forward and
multiple page blocks forward to avoid do twice boundary check for multiple
page blocks forward.

Link: https://lkml.kernel.org/r/[email protected]
Signed-off-by: Kemeng Shi <[email protected]>
Reviewed-by: Baolin Wang <[email protected]>
Cc: David Hildenbrand <[email protected]>
Cc: Mel Gorman <[email protected]>
Signed-off-by: Andrew Morton <[email protected]>
This commit is contained in:
Kemeng Shi
2023-08-21 13:37:39 -07:00
committed by Andrew Morton
parent 1695178900
commit a2864a6745
1 changed files with 2 additions and 3 deletions
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mm/compaction.c
+2 -3
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@@ -740,8 +740,6 @@ isolate_freepages_range(struct compact_control *cc,
/* Protect pfn from changing by isolate_freepages_block */
unsigned long isolate_start_pfn = pfn;
block_end_pfn = min(block_end_pfn, end_pfn);
/*
* pfn could pass the block_end_pfn if isolated freepage
* is more than pageblock order. In this case, we adjust
@@ -750,9 +748,10 @@ isolate_freepages_range(struct compact_control *cc,
if (pfn >= block_end_pfn) {
block_start_pfn = pageblock_start_pfn(pfn);
block_end_pfn = pageblock_end_pfn(pfn);
block_end_pfn = min(block_end_pfn, end_pfn);
}
block_end_pfn = min(block_end_pfn, end_pfn);
if (!pageblock_pfn_to_page(block_start_pfn,
block_end_pfn, cc->zone))
break;