> From: Wanpeng Li [mailto:liw...@linux.vnet.ibm.com]
> Subject: [PATCH 2/4] zcache: zero-filled pages awareness
>
> Compression of zero-filled pages can unneccessarily cause internal
> fragmentation, and thus waste memory. This special case can be
> optimized.
>
>
Compression of zero-filled pages can unneccessarily cause internal
fragmentation, and thus waste memory. This special case can be
optimized.
This patch captures zero-filled pages, and marks their corresponding
zcache backing page entry as zero-filled. Whenever such zero-filled
page is retrieved, w
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