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SubjectRe: block/bsg.c
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From: Jens Axboe <jens.axboe@oracle.com>
Subject: Re: block/bsg.c
Date: Tue, 17 Jul 2007 09:10:45 +0200

> On Tue, Jul 17 2007, FUJITA Tomonori wrote:
> > From: Jens Axboe <jens.axboe@oracle.com>
> > Subject: Re: block/bsg.c
> > Date: Tue, 17 Jul 2007 08:59:40 +0200
> >
> > > On Tue, Jul 17 2007, FUJITA Tomonori wrote:
> > > > From: Jens Axboe <jens.axboe@oracle.com>
> > > > Subject: Re: block/bsg.c
> > > > Date: Tue, 17 Jul 2007 08:38:11 +0200
> > > >
> > > > > On Mon, Jul 16 2007, Andrew Morton wrote:
> > > > > >
> > > > > > A belated review (I've never seen this before and there it is in mainline)
> > > > > >
> > > > > > > static char bsg_version[] = "block layer sg (bsg) 0.4";
> > > > > >
> > > > > > `const' would be better. That moves it into a write-protected memory section.
> > > > >
> > > > > Agree
> > > > >
> > > > > > > #define list_entry_bc(entry) list_entry((entry), struct bsg_command, list)
> > > > > >
> > > > > > This makes the code easier to write but harder to read. We should optimise
> > > > > > for readers. Please open-code this at callsites.
> > > > > >
> > > > > > Or at least convert it into a (commented) (possibly inlined) C function.
> > > > >
> > > > > list_entry_to_bc(), then? The main objective is to save on typing, and
> > > > > (just as important) make sure we don't bump over the 80 chars per line.
> > > > >
> > > > > > > /*
> > > > > > > * just for testing
> > > > > > > */
> > > > > > > #define BSG_MAJOR (240)
> > > > > >
> > > > > > What's this doing in mainline? 240 is a "reserved for local use" major.
> > > > > > This will cause collisions. This code should be using dynamic major
> > > > > > assignment.
> > > > >
> > > > > Yeah, that's a big error on my part. Will get that fixed up right away.
> > > >
> > > > I've been testing the patchset to fix the issues that Andrew pointed
> > > > out. I can send it soon.
> > > >
> > > > Jens, have you already fixed some?
> > >
> > > I already pushed some of the changes locally, just the idr change is
> > > missing. See the #bsg branch:
> > >
> > > http://git.kernel.dk/?p=linux-2.6-block.git;a=shortlog;h=bsg
> >
> > I see.
>
> Since Linus is happily snoring by now, could you test and see if the
> tree works for you?

It works for me. I'll submit some minor patches against your bsg
branch to scsi-ml. Can you push them together?

Thanks,
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