Re: [PATCH 0/9] scsi_data_buffer structure (in preparation for bidi)

[FUJITA Tomonori <tomof@acm.org>]

On Sun, 09 Sep 2007 17:09:15 +0300
Boaz Harrosh <bharrosh@panasas.com> wrote:

> On Sun, Sep 09 2007 at 16:47 +0300, FUJITA Tomonori <tomof@acm.org> wrote:
> > On Sun, 09 Sep 2007 11:25:57 +0300
> > Boaz Harrosh <bharrosh@panasas.com> wrote:
> > 
> >> On Fri, Sep 07 2007 at 0:50 +0300, FUJITA Tomonori <tomof@acm.org> wrote:
> >>> This patchset, which I submitted before, adds a new data structure, 
> >>> scsi_data_buffer, including everything for data transfer:
> >>>
> >>> struct scsi_data_buffer { unsigned length; int resid; short sg_count;
> >>>  short __sg_count; struct scatterlist *sglist; };
> >>>
> >>> One scsi_data_buffer structure is embedded in struct scsi_cmnd for 
> >>> uni-directional transfer. All the members are just moved from 
> >>> scsi_cmnd structure to scsi_data_buffer structure. So nothing is
> >>> added to scsi_cmnd structure.
> >>>
> >>> After applying this patchset, llds must use the scsi data accessors.
> >>> This patchset includes some conversation patches (most of them are
> >>> patches that Boaz submitted before), however there is still some code
> >>> that is needed to be converted.
> >>>
> >>> Boaz, if you still have other conversation patches, please submit 
> >>> them.
> >>>
> >>> I suspect that nobody cares about some of unconverted llds, which
> >>> will be not compilable after this patchset. I'll fix ldds that people
> >>>  complain about.
> >>>
> >>> It's difficult to test this patchset in -mm via scsi-misc. Jens, 
> >>> please send this to -mm via the block tree.
> >> Sorry for the late response. Just am back from vacation.
> >>
> >> Tomo please hold with these patches a bit longer the
> >> Tree is not ready for it. 
> > 
> > Then we have no chance to merge scsi_data_buffer into 2.6.24.
> > 
> I hope to submit all/most of the work this week. If we miss the window
> for 2.6.24 than I'm very sorry for that. But I don't think we are 
> aloud to break USB storage subsystem.

I'll send patches for USB (in a 'search and replace' way) if you don't
soon. Except for USB, I suspect that nobody cares about most of the
unconverted drivers.