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Date:   Mon, 20 Mar 2023 09:09:43 +1100
From:   "NeilBrown" <>
To:     "Jes Sorensen" <>
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 Mon, 20 Mar 2023, Jes Sorensen wrote:
> 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 <>
> Applied!


Do you have plans for releasing 4.3?  I'd like this patch to be in a
numbered release for at least a few months before we change the kernel
Kconfig to allow md to be built without CONFIG_BLOCK_LEGACY_AUTOLOAD.


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