cma: decrease cc.nr_migratepages after reclaiming pagelist
reclaim_clean_pages_from_list() reclaims clean pages before migration so cc.nr_migratepages should be updated. Currently, there is no problem but it can be wrong if we try to use the value in future. Signed-off-by: Minchan Kim <minchan@kernel.org> Acked-by: Mel Gorman <mgorman@suse.de> Cc: Michal Nazarewicz <mina86@mina86.com> Cc: Bartlomiej Zolnierkiewicz <b.zolnierkie@samsung.com> Cc: Marek Szyprowski <m.szyprowski@samsung.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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@ -5674,7 +5674,7 @@ static int __alloc_contig_migrate_range(struct compact_control *cc,
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unsigned long start, unsigned long end)
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unsigned long start, unsigned long end)
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{
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{
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/* This function is based on compact_zone() from compaction.c. */
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/* This function is based on compact_zone() from compaction.c. */
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unsigned long nr_reclaimed;
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unsigned long pfn = start;
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unsigned long pfn = start;
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unsigned int tries = 0;
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unsigned int tries = 0;
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int ret = 0;
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int ret = 0;
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@ -5701,7 +5701,9 @@ static int __alloc_contig_migrate_range(struct compact_control *cc,
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break;
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break;
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}
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}
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reclaim_clean_pages_from_list(cc->zone, &cc->migratepages);
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nr_reclaimed = reclaim_clean_pages_from_list(cc->zone,
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&cc->migratepages);
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cc->nr_migratepages -= nr_reclaimed;
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ret = migrate_pages(&cc->migratepages,
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ret = migrate_pages(&cc->migratepages,
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alloc_migrate_target,
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alloc_migrate_target,
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