linux-kernel - Re: [PATCH] zsmalloc: zs_page_isolate: skip unnecessary loops but not return false if zspage is not inuse

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Message-ID: <20170817053048.GA31165@blaptop>
Date:   Thu, 17 Aug 2017 14:30:48 +0900
From:   Minchan Kim <minchan@...nel.org>
To:     Hui Zhu <zhuhui@...omi.com>
Cc:     ngupta@...are.org, sergey.senozhatsky.work@...il.com,
        linux-mm@...ck.org, linux-kernel@...r.kernel.org,
        teawater@...il.com
Subject: Re: [PATCH] zsmalloc: zs_page_isolate: skip unnecessary loops but
 not return false if zspage is not inuse

On Wed, Aug 16, 2017 at 03:49:54PM +0800, Hui Zhu wrote:
> Like [1], zs_page_isolate meet the same problem if zspage is not inuse.
> 
> After [2], zs_page_migrate can support empty zspage now.
> 
> Make this patch to let zs_page_isolate skip unnecessary loops but not
> return false if zspage is not inuse.
> 
> [1] zsmalloc-zs_page_migrate-skip-unnecessary-loops-but-not-return-ebusy-if-zspage-is-not-inuse-fix.patch
> [2] zsmalloc-zs_page_migrate-schedule-free_work-if-zspage-is-ZS_EMPTY.patch
> 
> Signed-off-by: Hui Zhu <zhuhui@...omi.com>
Acked-by: Minchan Kim <minchan@...nel.org>

Andrew,
Could you fold this to zsmalloc-zs_page_migrate-skip-unnecessary-loops-but-not-return-ebusy-if-zspage-is-not-inuse?

Thanks!