Re: [PATCH v3 4/7] zram: introduce ZRAM_IDLE flag

From: Sergey Senozhatsky
Date: Wed Nov 28 2018 - 21:29:37 EST


On (11/27/18 14:54), Minchan Kim wrote:
> To support idle page writeback with upcoming patches, this patch
> introduces a new ZRAM_IDLE flag.
>
> Userspace can mark zram slots as "idle" via
> "echo all > /sys/block/zramX/idle"
> which marks every allocated zram slot as ZRAM_IDLE.
> User could see it by /sys/kernel/debug/zram/zram0/block_state.
>
> 300 75.033841 ...i
> 301 63.806904 s..i
> 302 63.806919 ..hi

Hopefully we will never have a 't' block state :)

-ss