linux-kernel - Re: [PATCH] mm/slub: sysfs cleanup on cpu partial when !SLUB_CPU

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Message-ID: <1b6dd6d9-f613-846f-b102-b19df1b2eee8@huawei.com>
Date:   Wed, 19 Aug 2020 16:41:25 +0800
From:   Abel Wu <wuyun.wu@...wei.com>
To:     Andrew Morton <akpm@...ux-foundation.org>
CC:     Christoph Lameter <cl@...ux.com>,
        Pekka Enberg <penberg@...nel.org>,
        "David Rientjes" <rientjes@...gle.com>,
        Joonsoo Kim <iamjoonsoo.kim@....com>, <hewenliang4@...wei.com>,
        <hushiyuan@...wei.com>,
        "open list:SLAB ALLOCATOR" <linux-mm@...ck.org>,
        open list <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH] mm/slub: sysfs cleanup on cpu partial when
 !SLUB_CPU_PARTIAL



On 2020/8/19 11:26, Andrew Morton wrote:
> On Thu, 13 Aug 2020 16:48:54 +0800 <wuyun.wu@...wei.com> wrote:
> 
>> Hide cpu partial related sysfs entries when !CONFIG_SLUB_CPU_PARTIAL to
>> avoid confusion.
>>
> 
> But it changes the userspace interface in ways which might cause
> existing code to misbehave?
Yes, indeed.
> 
> We just had to revert a different commit for this reason :(
> 
> http://lkml.kernel.org/r/20200811075412.12872-1-bhe@redhat.com
> .
> 
OK, just ignore this patch and leave it as is!

Thanks,
	Abel