Re: [PATCH v3 06/16] mm/page_alloc: relax GFP WARN in nolock allocs

[Harry Yoo <harry@kernel.org>]

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On 6/29/26 10:11 PM, Brendan Jackman wrote:
> This WARN forbids setting other flags than __GFP_ACCOUNT but we
> unconditionally set the ones in gfp_nolock so they are certainly fine
> for the caller to set.
> 
> There are other GFP flags that are almost certainly fine to set here;
> Willy noted GFP_HIGHMEM, GFP_DMA, GFP_MOVABLE and GFP_HARDWALL. But,
> nolock allocation is rather special, so be conservative to try and
> ensure we have a chance to think carefully before nontrivial new
> usecases arise.
> 
> Suggested-by: Matthew Wilcox <willy@infradead.org>
> Link: https://lore.kernel.org/linux-mm/ajS96fWbG4dzP3u3@casper.infradead.org/
> Reviewed-by: Suren Baghdasaryan <surenb@google.com>
> Signed-off-by: Brendan Jackman <jackmanb@google.com>
> ---

Acked-by: Harry Yoo (Oracle) <harry@kernel.org>

-- 
Cheers,
Harry / Hyeonggon

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