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SubjectRe: [PATCH v3 0/7] zram idle page writeback
On (11/27/18 14:54), Minchan Kim wrote:
> Inherently, swap device has many idle pages which are rare touched since
> it was allocated. It is never problem if we use storage device as swap.
> However, it's just waste for zram-swap.
> This patchset supports zram idle page writeback feature.
> * Admin can define what is idle page "no access since X time ago"
> * Admin can define when zram should writeback them
> * Admin can define when zram should stop writeback to prevent wearout
> Detail is on each patch's description.
> Below first two patches are -stable material so it could go first
> separately with others in this series.

I had some time to look at the patches
Reviewed-by: Sergey Senozhatsky <>

Will give it some testing later; next week maybe.


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