In message <[EMAIL PROTECTED]>, Christoph Hellwig writes:
> Nice, I always hated these double-indented switch statements.
> 
> > +   case FIBMAP:
> > +   {
> > +           struct address_space *mapping = filp->f_mapping;
> > +           int res;
> > +           /* do we support this mess? */
> > +           if (!mapping->a_ops->bmap)
> > +                   return -EINVAL;
> > +           if (!capable(CAP_SYS_RAWIO))
> > +                   return -EPERM;
> > +           error = get_user(block, p);
> > +           if (error)
> > +                   return error;
> > +           lock_kernel();
> > +           res = mapping->a_ops->bmap(mapping, block);
> > +           unlock_kernel();
> > +           return put_user(res, p);
> 
> While you're at it, it's probably worth splitting this out into
> a small helper function.

Sure.  I assume you mean an internal function to encapsulate the entire case
statement's code, one for each of the FIO* cases.

Erez.
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