[PATCH v2 1/2] libfs: Introduce tokenize_user_input()

[Matthew Wilcox]

On Thu, Aug 25, 2022 at 06:48:32PM +0200, Cezary Rojewski wrote:
> Add new helper function to allow for splitting specified user string
> into a sequence of integers. Internally it makes use of get_options() so
> the returned sequence contains the integers extracted plus an additional
> element that begins the sequence and specifies the integers count.
> 
> Suggested-by: Andy Shevchenko <andy.shevchenko at gmail.com>
> Signed-off-by: Cezary Rojewski <cezary.rojewski at intel.com>
> ---
>  fs/libfs.c         | 45 +++++++++++++++++++++++++++++++++++++++++++++
>  include/linux/fs.h |  1 +

This really has nothing to do with filesystems.  Surely
string_helpers.[ch] is the appropriate place for this code?
Also get_options() should probably move its prototype from kernel.h to
string_helpers.h.