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Subject[PATCH 2/2] mm/compaction: avoid unneeded pageblock_end_pfn when no_set_skip_hint is set
Date
Move pageblock_end_pfn after no_set_skip_hint check to avoid unneeded
pageblock_end_pfn if no_set_skip_hint is set.

Signed-off-by: Kemeng Shi <shikemeng@huaweicloud.com>
---
mm/compaction.c | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/mm/compaction.c b/mm/compaction.c
index c0d8d08fc163..9b7a0a69e19f 100644
--- a/mm/compaction.c
+++ b/mm/compaction.c
@@ -458,12 +458,12 @@ static void update_cached_migrate(struct compact_control *cc, unsigned long pfn)
{
struct zone *zone = cc->zone;

- pfn = pageblock_end_pfn(pfn);
-
/* Set for isolation rather than compaction */
if (cc->no_set_skip_hint)
return;

+ pfn = pageblock_end_pfn(pfn);
+
if (pfn > zone->compact_cached_migrate_pfn[0])
zone->compact_cached_migrate_pfn[0] = pfn;
if (cc->mode != MIGRATE_ASYNC &&
--
2.30.0
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