Re: [PATCH 5/5] mm: compaction: drop redundant watermark check in compaction_zonelist_suitable()

[Vlastimil Babka]

On 5/19/23 14:39, Johannes Weiner wrote:
> The watermark check in compaction_zonelist_suitable(), called from
> should_compact_retry(), is sandwiched between two watermark checks
> already: before, there are freelist attempts as part of direct reclaim
> and direct compaction; after, there is a last-minute freelist attempt
> in __alloc_pages_may_oom().
> 
> The check in compaction_zonelist_suitable() isn't necessary. Kill it.
> 
> Signed-off-by: Johannes Weiner <hannes@xxxxxxxxxxx>

Acked-by: Vlastimil Babka <vbabka@xxxxxxx>