Re: [RFC v2 PATCH 5/5] migrate,sysfs: add pagecache promotion

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On 12/27/24 21:26, Gregory Price wrote:
On Fri, Dec 27, 2024 at 04:31:48PM +0530, Donet Tom wrote:
   		folio_clear_referenced(folio);
   		workingset_activation(folio);
+	} else {
+	
In the current implementation, promotion will not work if we enable MGLRU,
right?
Is there any specific reason we are not enabling promotion with MGLRU?

folio_mark_accessed may not be the best place to interpose for MGLRU,
since MGLRU's semantics are so different.  I didn't want to dive that
deep until I could show traditional LRU benefit.

Certainly open to ideas if you're familiar with MGLRU semantics.
Thanks. I will take a look at it.

~Gregory





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