linux-kernel - Re: [PATCH v5 08/16] xarray: use kmem_cache_alloc_lru to allocate xa

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Message-ID: <Yd3XFjz9eKVpYHsM@carbon.dhcp.thefacebook.com>
Date:   Tue, 11 Jan 2022 11:14:30 -0800
From:   Roman Gushchin <guro@...com>
To:     Muchun Song <songmuchun@...edance.com>
CC:     <willy@...radead.org>, <akpm@...ux-foundation.org>,
        <hannes@...xchg.org>, <mhocko@...nel.org>,
        <vdavydov.dev@...il.com>, <shakeelb@...gle.com>,
        <shy828301@...il.com>, <alexs@...nel.org>,
        <richard.weiyang@...il.com>, <david@...morbit.com>,
        <trond.myklebust@...merspace.com>, <anna.schumaker@...app.com>,
        <jaegeuk@...nel.org>, <chao@...nel.org>,
        <kari.argillander@...il.com>, <linux-fsdevel@...r.kernel.org>,
        <linux-kernel@...r.kernel.org>, <linux-mm@...ck.org>,
        <linux-nfs@...r.kernel.org>, <zhengqi.arch@...edance.com>,
        <duanxiongchun@...edance.com>, <fam.zheng@...edance.com>,
        <smuchun@...il.com>
Subject: Re: [PATCH v5 08/16] xarray: use kmem_cache_alloc_lru to allocate
 xa_node

On Mon, Dec 20, 2021 at 04:56:41PM +0800, Muchun Song wrote:
> The workingset will add the xa_node to the shadow_nodes list. So the
> allocation of xa_node should be done by kmem_cache_alloc_lru(). Using
> xas_set_lru() to pass the list_lru which we want to insert xa_node
> into to set up the xa_node reclaim context correctly.
> 
> Signed-off-by: Muchun Song <songmuchun@...edance.com>
> Acked-by: Johannes Weiner <hannes@...xchg.org>

Acked-by: Roman Gushchin <guro@...com>

Thanks!