Re: [PATCH 04/11] mm: add PG_dropbehind folio flag

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On Fri, Dec 13, 2024 at 08:55:18AM -0700, Jens Axboe wrote:
> Add a folio flag that file IO can use to indicate that the cached IO
> being done should be dropped from the page cache upon completion.
> 
> Signed-off-by: Jens Axboe <axboe@xxxxxxxxx>

Reviewed-by: Kirill A. Shutemov <kirill.shutemov@xxxxxxxxxxxxxxx>

+ David, Vlastimil.

I think we should consider converting existing folio_set_reclaim() /
SetPageReclaim() users to the new flag. From a quick scan, all of them
would benefit from dropping the page after writeback is complete instead
of leaving the folio on the LRU.

-- 
  Kiryl Shutsemau / Kirill A. Shutemov




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