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SubjectRe: [PATCH 5/8] mm/compaction: corret comment of cached migrate pfn update
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On 28.07.23 19:10, Kemeng Shi wrote:
> Commit e380bebe47715 ("mm, compaction: keep migration source private to
> a single compaction instance") moved update of async and sync
> compact_cached_migrate_pfn from update_pageblock_skip to
> update_cached_migrate but left the comment behind.
> Move the relevant comment to correct this.
>
> Signed-off-by: Kemeng Shi <shikemeng@huaweicloud.com>
> ---
> mm/compaction.c | 2 +-
> 1 file changed, 1 insertion(+), 1 deletion(-)
>
> diff --git a/mm/compaction.c b/mm/compaction.c
> index 09c36251c613..1eebb61a1f63 100644
> --- a/mm/compaction.c
> +++ b/mm/compaction.c
> @@ -464,6 +464,7 @@ static void update_cached_migrate(struct compact_control *cc, unsigned long pfn)
>
> pfn = pageblock_end_pfn(pfn);
>
> + /* Update where async and sync compaction should restart */
> if (pfn > zone->compact_cached_migrate_pfn[0])
> zone->compact_cached_migrate_pfn[0] = pfn;
> if (cc->mode != MIGRATE_ASYNC &&
> @@ -485,7 +486,6 @@ static void update_pageblock_skip(struct compact_control *cc,
>
> set_pageblock_skip(page);
>
> - /* Update where async and sync compaction should restart */
> if (pfn < zone->compact_cached_free_pfn)
> zone->compact_cached_free_pfn = pfn;
> }

Again, no expert, but LGTM

Reviewed-by: David Hildenbrand <david@redhat.com>

--
Cheers,

David / dhildenb

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