linux-kernel - Re: [PATCH v2 0/5] Move kvfree

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Message-ID: <9f872537-8e96-413b-bcb1-3f1b8a4fc275@suse.cz>
Date: Sat, 11 Jan 2025 20:40:01 +0100
From: Vlastimil Babka <vbabka@...e.cz>
To: Uladzislau Rezki <urezki@...il.com>
Cc: linux-mm@...ck.org, "Paul E . McKenney" <paulmck@...nel.org>,
 Andrew Morton <akpm@...ux-foundation.org>, RCU <rcu@...r.kernel.org>,
 LKML <linux-kernel@...r.kernel.org>, Christoph Lameter <cl@...ux.com>,
 Pekka Enberg <penberg@...nel.org>, David Rientjes <rientjes@...gle.com>,
 Joonsoo Kim <iamjoonsoo.kim@....com>,
 Roman Gushchin <roman.gushchin@...ux.dev>,
 Hyeonggon Yoo <42.hyeyoo@...il.com>,
 Oleksiy Avramchenko <oleksiy.avramchenko@...y.com>
Subject: Re: [PATCH v2 0/5] Move kvfree_rcu() into SLAB (v2)

On 12/16/24 14:07, Uladzislau Rezki wrote:
> On Sun, Dec 15, 2024 at 06:30:02PM +0100, Vlastimil Babka wrote:
>> On 12/12/24 19:02, Uladzislau Rezki (Sony) wrote:
>> > Hello!
>> > 
>> > This is v2. It is based on the Linux 6.13-rc2. The first version is
>> > here:
>> > 
>> > https://lore.kernel.org/linux-mm/20241210164035.3391747-4-urezki@gmail.com/T/
>> > 
>> > The difference between v1 and v2 is that, the preparation process is
>> > done in original place instead and after that there is one final move.
>> 
>> Looks good, will include in slab/for-next
>> 
>> I think patch 5 should add more explanation to the commit message - the
>> subthread started by Christoph could provide content :) Can you summarize so
>> I can amend the commit log?
>>
> <snip>
> mm/slab: Move kvfree_rcu() into SLAB
> 
> Move kvfree_rcu() functionality to the slab_common.c file.
> 
> The reason of being kvfree_rcu() functionality as part of SLAB is
> that, there is a clear trend and need of closer integration. One
> of the recent example is creating a barrier function for SLAB caches.
> 
> Another reason is to prevent of having several implementations of
> RCU machinery for reclaiming objects after a GP. As future steps,
> it can be more integrated(easier) with SLAB internals.
> <snip>

Thanks, amended.

> --
> Uladzislau Rezki