From: Vlastimil Babka <vbabka@suse.cz>
To: Baolin Wang <baolin.wang@linux.alibaba.com>, akpm@linux-foundation.org
Cc: mgorman@techsingularity.net, linux-mm@kvack.org,
linux-kernel@vger.kernel.org
Subject: Re: [PATCH 4/6] mm: compaction: only set skip flag if cc->no_set_skip_hint is false
Date: Tue, 30 May 2023 10:03:14 +0200 [thread overview]
Message-ID: <fd3bc002-e322-1e69-fa4b-9d6cf97a187f@suse.cz> (raw)
In-Reply-To: <0eb2cd2407ffb259ae6e3071e10f70f2d41d0f3e.1685018752.git.baolin.wang@linux.alibaba.com>
On 5/25/23 14:53, Baolin Wang wrote:
> To keep the same logic as test_and_set_skip(), only set the skip flag
> if cc->no_set_skip_hint is false, which makes code more reasonable.
>
> Signed-off-by: Baolin Wang <baolin.wang@linux.alibaba.com>
Acked-by: Vlastimil Babka <vbabka@suse.cz>
> ---
> mm/compaction.c | 2 +-
> 1 file changed, 1 insertion(+), 1 deletion(-)
>
> diff --git a/mm/compaction.c b/mm/compaction.c
> index 1e5183f39ca9..65d8d9223acc 100644
> --- a/mm/compaction.c
> +++ b/mm/compaction.c
> @@ -1223,7 +1223,7 @@ isolate_migratepages_block(struct compact_control *cc, unsigned long low_pfn,
> * rescanned twice in a row.
> */
> if (low_pfn == end_pfn && (!nr_isolated || cc->finish_pageblock)) {
> - if (valid_page && !skip_updated)
> + if (!cc->no_set_skip_hint && valid_page && !skip_updated)
> set_pageblock_skip(valid_page);
> update_cached_migrate(cc, low_pfn);
> }
next prev parent reply other threads:[~2023-05-30 8:03 UTC|newest]
Thread overview: 14+ messages / expand[flat|nested] mbox.gz Atom feed top
2023-05-25 12:53 [PATCH 0/6] Misc cleanups and improvements for compaction Baolin Wang
2023-05-25 12:53 ` [PATCH 1/6] mm: compaction: drop the redundant page validation in update_pageblock_skip() Baolin Wang
2023-05-30 7:27 ` Vlastimil Babka
2023-05-31 1:44 ` Baolin Wang
2023-05-25 12:53 ` [PATCH 2/6] mm: compaction: change fast_isolate_freepages() to void type Baolin Wang
2023-05-30 7:29 ` Vlastimil Babka
2023-05-25 12:53 ` [PATCH 3/6] mm: compaction: skip more fully scanned pageblock Baolin Wang
2023-05-30 7:59 ` Vlastimil Babka
2023-05-25 12:53 ` [PATCH 4/6] mm: compaction: only set skip flag if cc->no_set_skip_hint is false Baolin Wang
2023-05-30 8:03 ` Vlastimil Babka [this message]
2023-05-25 12:54 ` [PATCH 5/6] mm: compaction: add trace event for fast freepages isolation Baolin Wang
2023-05-30 8:24 ` Vlastimil Babka
2023-05-25 12:54 ` [PATCH 6/6] mm: compaction: skip fast freepages isolation if enough freepages are isolated Baolin Wang
2023-05-30 8:32 ` Vlastimil Babka
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