Re: [PATCH 1/2] mm/compaction: correct comment of candidate pfn in fast_isolate_freepages

From: Kemeng Shi
Date: Fri Jul 21 2023 - 03:44:32 EST


Hi Baolin, I try to resend a new v2 patchset, the patch 1 is still
missing. Here is the patch 1 in old version and I find it in lore
archive of lore.kernel.org with link [1].
It's likely that patch 1 is denied by linux-mm.kvack.org but accepted
by linux-kernel@xxxxxxxxxxxxxxx. Is anyone know how to submit issue of
linux-mm.kvack.org, please let know. Thanks!

[1] https://lore.kernel.org/all/20230720115351.2039431-2-shikemeng@xxxxxxxxxxxxxxx/

on 7/20/2023 7:53 PM, Kemeng Shi wrote:
> If no preferred one was not found, we will use candidate page with maximum
> pfn > min_pfn which is saved in high_pfn. Correct "minimum" to "maximum
> candidate" in comment.
>
> Signed-off-by: Kemeng Shi <shikemeng@xxxxxxxxxxxxxxx>
> ---
> mm/compaction.c | 2 +-
> 1 file changed, 1 insertion(+), 1 deletion(-)
>
> diff --git a/mm/compaction.c b/mm/compaction.c
> index eb1d3d9a422c..c0d8d08fc163 100644
> --- a/mm/compaction.c
> +++ b/mm/compaction.c
> @@ -1526,7 +1526,7 @@ static void fast_isolate_freepages(struct compact_control *cc)
> break;
> }
>
> - /* Use a minimum pfn if a preferred one was not found */
> + /* Use a maximum candidate pfn if a preferred one was not found */
> if (!page && high_pfn) {
> page = pfn_to_page(high_pfn);
>
>

--
Best wishes
Kemeng Shi