Re: [PATCH v14 068/138] mm/writeback: Add folio_mark_dirty()

From: Vlastimil Babka
Date: Thu Aug 12 2021 - 11:55:18 EST

On 7/15/21 5:35 AM, Matthew Wilcox (Oracle) wrote:
> Reimplement set_page_dirty() as a wrapper around folio_mark_dirty().
> There is no change to filesystems as they were already being called
> with the compound_head of the page being marked dirty. We avoid
> several calls to compound_head(), both statically (through
> using folio_test_dirty() instead of PageDirty() and dynamically by
> calling folio_mapping() instead of page_mapping().
> Also return bool instead of int to show the range of values actually
> returned, and add kernel-doc.
> Signed-off-by: Matthew Wilcox (Oracle) <willy@xxxxxxxxxxxxx>
> Reviewed-by: Christoph Hellwig <hch@xxxxxx>

Acked-by: Vlastimil Babka <vbabka@xxxxxxx>