linux-kernel - Re: [PATCH 1/3] mm, slab: deprecate SLAB_MEM

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Message-ID: <7e27b853-e10f-4034-bc81-2d5e5a03361a@linux.dev>
Date: Thu, 22 Feb 2024 10:32:56 +0800
From: Chengming Zhou <chengming.zhou@...ux.dev>
To: "Song, Xiongwei" <Xiongwei.Song@...driver.com>,
 Roman Gushchin <roman.gushchin@...ux.dev>, Vlastimil Babka <vbabka@...e.cz>
Cc: Christoph Lameter <cl@...ux.com>, Pekka Enberg <penberg@...nel.org>,
 David Rientjes <rientjes@...gle.com>, Joonsoo Kim <iamjoonsoo.kim@....com>,
 Andrew Morton <akpm@...ux-foundation.org>,
 Hyeonggon Yoo <42.hyeyoo@...il.com>, Andrey Ryabinin
 <ryabinin.a.a@...il.com>, Alexander Potapenko <glider@...gle.com>,
 Andrey Konovalov <andreyknvl@...il.com>, Dmitry Vyukov <dvyukov@...gle.com>,
 Vincenzo Frascino <vincenzo.frascino@....com>,
 Zheng Yejian <zhengyejian1@...wei.com>,
 "linux-mm@...ck.org" <linux-mm@...ck.org>,
 "linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
 "kasan-dev@...glegroups.com" <kasan-dev@...glegroups.com>,
 Steven Rostedt <rostedt@...dmis.org>
Subject: Re: [PATCH 1/3] mm, slab: deprecate SLAB_MEM_SPREAD flag

On 2024/2/22 09:10, Song, Xiongwei wrote:
> Hi Vlastimil,
> 
>> On Tue, Feb 20, 2024 at 05:58:25PM +0100, Vlastimil Babka wrote:
>> 0;95;0c> The SLAB_MEM_SPREAD flag used to be implemented in SLAB, which was
>>> removed.  SLUB instead relies on the page allocator's NUMA policies.
>>> Change the flag's value to 0 to free up the value it had, and mark it
>>> for full removal once all users are gone.
>>>
>>> Reported-by: Steven Rostedt <rostedt@...dmis.org>
>>> Closes: https://lore.kernel.org/all/20240131172027.10f64405@gandalf.local.home/
>>> Signed-off-by: Vlastimil Babka <vbabka@...e.cz>
>>
>> Reviewed-by: Roman Gushchin <roman.gushchin@...ux.dev>
>>
>> Do you plan to follow up with a patch series removing all usages?
> 
> If you are not available with it, I can do.

Actually, I have done it yesterday. Sorry, I just forgot this task. :)

I plan to send out it after this series merged in the slab branch. And
I'm wondering is it better to put all diffs in one huge patch or split
every diff to each patch?

Thanks!