linux-kernel - Re: [PATCH v6 38/45] fs: super: dynamically allocate the s

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Message-ID: <20230913170303.GT20408@twin.jikos.cz>
Date:   Wed, 13 Sep 2023 19:03:03 +0200
From:   David Sterba <dsterba@...e.cz>
To:     Qi Zheng <zhengqi.arch@...edance.com>
Cc:     akpm@...ux-foundation.org, david@...morbit.com, tkhai@...ru,
        vbabka@...e.cz, roman.gushchin@...ux.dev, djwong@...nel.org,
        brauner@...nel.org, paulmck@...nel.org, tytso@....edu,
        steven.price@....com, cel@...nel.org, senozhatsky@...omium.org,
        yujie.liu@...el.com, gregkh@...uxfoundation.org,
        muchun.song@...ux.dev, linux-kernel@...r.kernel.org,
        linux-mm@...ck.org, linux-fsdevel@...r.kernel.org,
        Muchun Song <songmuchun@...edance.com>,
        Chris Mason <clm@...com>, Josef Bacik <josef@...icpanda.com>,
        David Sterba <dsterba@...e.com>,
        Alexander Viro <viro@...iv.linux.org.uk>,
        linux-btrfs@...r.kernel.org
Subject: Re: [PATCH v6 38/45] fs: super: dynamically allocate the s_shrink

On Mon, Sep 11, 2023 at 05:44:37PM +0800, Qi Zheng wrote:
> In preparation for implementing lockless slab shrink, use new APIs to
> dynamically allocate the s_shrink, so that it can be freed asynchronously
> via RCU. Then it doesn't need to wait for RCU read-side critical section
> when releasing the struct super_block.
> 
> Signed-off-by: Qi Zheng <zhengqi.arch@...edance.com>
> Reviewed-by: Muchun Song <songmuchun@...edance.com>
> CC: Chris Mason <clm@...com>
> CC: Josef Bacik <josef@...icpanda.com>
> CC: David Sterba <dsterba@...e.com>

Acked-by: David Sterba <dsterba@...e.com>