[Virtio-fs] [PATCH v3 3/3] fs: simplify get_filesystem_list / get_all_fs_names

[Stefan Hajnoczi]

On Wed, Jul 14, 2021 at 04:23:21PM -0400, Vivek Goyal wrote:
> From: Christoph Hellwig <hch at lst.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 at zeniv.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 at lst.de>
> Signed-off-by: Vivek Goyal <vgoyal at redhat.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 at redhat.com>
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