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Date:   Sun, 19 Mar 2023 12:36:06 -0400
From:   Jes Sorensen <>
To:     NeilBrown <>
Cc:     Mariusz Tkaczyk <>,
        Song Liu <>,
        Linux regressions mailing list <>,
        linux-raid <>,
        LKML <>,
        Nikolay Kichukov <>
Subject: Re: [PATCH - mdadm] mdopen: always try create_named_array()

On 3/13/23 20:06, NeilBrown wrote:
> mdopen() will use create_named_array() to ask the kernel to create the
> given md array, but only if it is given a number or name.
> If it is NOT given a name and is required to choose one itself using
> find_free_devnm() it does NOT use create_named_array().
> On kernels with CONFIG_BLOCK_LEGACY_AUTOLOAD not set, this can result in
> failure to assemble an array.  This can particularly seen when the
> "name" of the array begins with a host name different to the name of the
> host running the command.
> So add the missing call to create_named_array().
> Link:
> Signed-off-by: NeilBrown <>



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