APPLIED[F]: [E/F][PATCH] gfs2: add compat_ioctl support

[Seth Forshee]

On Wed, Jan 15, 2020 at 02:42:36PM -0300, Mauricio Faria de Oliveira wrote:
> From: Arnd Bergmann <arnd at arndb.de>
> 
> BugLink: https://bugs.launchpad.net/bugs/1859827
> 
> Out of the four ioctl commands supported on gfs2, only FITRIM
> works in compat mode.
> 
> Add a proper handler based on the ext4 implementation.
> 
> Fixes: 6ddc5c3ddf25 ("gfs2: getlabel support")
> Reviewed-by: Bob Peterson <rpeterso at redhat.com>
> Cc: Andreas Gruenbacher <agruenba at redhat.com>
> Signed-off-by: Arnd Bergmann <arnd at arndb.de>
> (cherry picked from commit 8d0980704842e8a68df2c3164c1c165e5c7ebc08)
> Signed-off-by: Mauricio Faria de Oliveira <mfo at canonical.com>

Applied to focal/master-next, thanks!