linux-kernel - Re: [PATCH v3 3/3] fs: simplify get_filesystem_list / get_all_fs

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Message-ID: <YPhBVNvubLmPyS4o@stefanha-x1.localdomain>
Date:   Wed, 21 Jul 2021 16:46:28 +0100
From:   Stefan Hajnoczi <stefanha@...hat.com>
To:     Vivek Goyal <vgoyal@...hat.com>
Cc:     viro@...iv.linux.org.uk, linux-fsdevel@...r.kernel.org,
        linux-kernel@...r.kernel.org, hch@....de, virtio-fs@...hat.com,
        v9fs-developer@...ts.sourceforge.net, miklos@...redi.hu
Subject: Re: [PATCH v3 3/3] fs: simplify get_filesystem_list /
 get_all_fs_names

On Wed, Jul 14, 2021 at 04:23:21PM -0400, Vivek Goyal wrote:
> From: Christoph Hellwig <hch@....de>
> 
> Just output the '\0' separate list of supported file systems for block
> devices directly rather than going through a pointless round of string
> manipulation.
> 
> Based on an earlier patch from Al Viro <viro@...iv.linux.org.uk>.
> 
> Vivek:
> Modified list_bdev_fs_names() and split_fs_names() to return number of
> null terminted strings to caller. Callers now use that information to
> loop through all the strings instead of relying on one extra null char
> being present at the end.
> 
> Signed-off-by: Christoph Hellwig <hch@....de>
> Signed-off-by: Vivek Goyal <vgoyal@...hat.com>
> ---
>  fs/filesystems.c   | 27 +++++++++++++++----------
>  include/linux/fs.h |  2 +-
>  init/do_mounts.c   | 49 ++++++++++++++++++++--------------------------
>  3 files changed, 39 insertions(+), 39 deletions(-)

Reviewed-by: Stefan Hajnoczi <stefanha@...hat.com>

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