Re: [PATCH v10 27/33] mm/writeback: Add folio_wait_stable

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On 5/11/21 11:47 PM, Matthew Wilcox (Oracle) wrote:
> Move wait_for_stable_page() into the folio compatibility file.
> folio_wait_stable() avoids a call to compound_head() and is 14 bytes
> smaller than wait_for_stable_page() was.  The net text size grows by 24
> bytes as a result of this patch.
> 
> Signed-off-by: Matthew Wilcox (Oracle) <willy@xxxxxxxxxxxxx>
> Reviewed-by: Christoph Hellwig <hch@xxxxxx>
> Acked-by: Jeff Layton <jlayton@xxxxxxxxxx>

Acked-by: Vlastimil Babka <vbabka@xxxxxxx>

This seems to remove last user of thp_head(). Remove it as obsolete?



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