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Date:   Fri, 11 Jun 2021 15:10:44 +0200
From:   Miklos Szeredi <>
To:     Ian Kent <>
Cc:     Greg Kroah-Hartman <>,
        Tejun Heo <>, Eric Sandeen <>,
        Fox Chen <>,
        Brice Goglin <>,
        Al Viro <>,
        Rick Lindsley <>,
        David Howells <>,
        Marcelo Tosatti <>,
        "Eric W. Biederman" <>,
        Carlos Maiolino <>,
        linux-fsdevel <>,
        Kernel Mailing List <>
Subject: Re: [PATCH v6 4/7] kernfs: switch kernfs to use an rwsem

On Wed, 9 Jun 2021 at 10:51, Ian Kent <> wrote:
> The kernfs global lock restricts the ability to perform kernfs node
> lookup operations in parallel during path walks.
> Change the kernfs mutex to an rwsem so that, when opportunity arises,
> node searches can be done in parallel with path walk lookups.
> Signed-off-by: Ian Kent <>

Reviewed-by: Miklos Szeredi <>

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