[PATCH 2/8] drm/i915/gem: Use PG_dropbehind instead of PG_reclaim

David Hildenbrand david at redhat.com
Mon Jan 13 10:06:26 UTC 2025


On 13.01.25 10:34, Kirill A. Shutemov wrote:
> The recently introduced PG_dropbehind allows for freeing folios
> immediately after writeback. Unlike PG_reclaim, it does not need vmscan
> to be involved to get the folio freed.
> 
> Instead of using folio_set_reclaim(), use folio_set_dropbehind() in
> __shmem_writeback()
> 
> It is safe to leave PG_dropbehind on the folio if, for some reason
> (bug?), the folio is not in a writeback state after ->writepage().
> In these cases, the kernel had to clear PG_reclaim as it shared a page
> flag bit with PG_readahead.

I think this is correct

Acked-by: David Hildenbrand <david at redhat.com>

-- 
Cheers,

David / dhildenb



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