Re: [Patch 1/2] cciss: fix for 2TB support

From: Andrew Morton
Date: Thu Feb 22 2007 - 16:28:27 EST


> On Thu, 22 Feb 2007 10:51:23 -0600 "Mike Miller (OS Dev)" <mikem@xxxxxxxxxxxxxxxxxxxxxxx> wrote:
> On Wed, Feb 21, 2007 at 07:14:27PM -0800, Andrew Morton wrote:
> > On Wed, 21 Feb 2007 15:10:39 -0600 "Mike Miller (OS Dev)" <mikem@xxxxxxxxxxxxxxxxxxxxxxx> wrote:
> >
> > > Patch 1/2
> > > + if (total_size == 0xFFFFFFFF) {
> >
> > I seem to remember having already questioned this. total_size is sector_t, which
> > can be either 32-bit or 64-bit. Are you sure that comparison works as
> > intended in both cases?
> >
> >
> > > + if(total_size == 0xFFFFFFFF) {
> > > cciss_read_capacity_16(cntl_num, i, 0,
> > > &total_size, &block_size);
> > > hba[cntl_num]->cciss_read = CCISS_READ_16;
> >
> > Here too.
> It has worked in all of the configs I've tested. Should I change it from sector_t to a
> __64? I have not tested all possible configs.
>

I'd suggest using -1: that just works.
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