On Fri, Aug 16, 2019 at 7:32 PM Andreas Gruenbacher <agrue...@redhat.com> wrote:
>
> On Wed, Aug 14, 2019 at 10:45 PM Arnd Bergmann <a...@arndb.de> wrote:
> > + /* These are just misnamed, they actually get/put from/to user an
> > int */
> > + switch(cmd) {
> > + case FS_IOC32_GETFLAGS:
> > + cmd = FS_IOC_GETFLAGS;
> > + break;
> > + case FS_IOC32_SETFLAGS:
> > + cmd = FS_IOC_SETFLAGS;
> > + break;
>
> I'd like the code to be more explicit here:
>
> case FITRIM:
> case FS_IOC_GETFSLABEL:
> break;
> default:
> return -ENOIOCTLCMD;
I've looked at it again: if we do this, the function actually becomes
longer than
the native gfs2_ioctl(). Should we just make a full copy then?
static long gfs2_compat_ioctl(struct file *filp, unsigned int cmd,
unsigned long arg)
{
switch(cmd) {
case FS_IOC32_GETFLAGS:
return gfs2_get_flags(filp, (u32 __user *)arg);
case FS_IOC32_SETFLAGS:
return gfs2_set_flags(filp, (u32 __user *)arg);
case FITRIM:
return gfs2_fitrim(filp, (void __user *)arg);
case FS_IOC_GETFSLABEL:
return gfs2_getlabel(filp, (char __user *)arg);
}
return -ENOTTY;
}
> Should we feed this through the gfs2 tree?
A later patch that removes the FITRIM handling from fs/compat_ioctl.c
depends on it, so I'd like to keep everything together.
Arnd
