On Wed, Oct 31 2007, David Miller wrote:
> From: Jens Axboe <[EMAIL PROTECTED]>
> Date: Wed, 31 Oct 2007 09:14:28 +0100
>
> > Subject: [PATCH] [SG] Get rid of __sg_mark_end()
> >
> > sg_mark_end() overwrites the page_link information, but all users want
> > __sg_mark_end() behaviour where we just set the end bit. That is the most
> > natural way to use the sg list, since you'll fill it in and then mark the
> > end point.
> >
> > So change sg_mark_end() to only set the termination bit. Add a sg_magic
> > debug check as well, and clear a chain pointer if it is set.
> >
> > Signed-off-by: Jens Axboe <[EMAIL PROTECTED]>
>
> It doesn't build. I suspect there is something else in your tree
> that is necessary for this patch to work on it's own.
Builds here. But yes, it's on top of other patches, it was merely for
demonstration purposes that I posted it. Locally sg_init_one() uses
sg_init_table() here, it doesn't open code the init:
static inline void sg_init_one(struct scatterlist *sg, const void *buf,
unsigned int buflen)
{
sg_init_table(sg, 1);
sg_set_buf(sg, buf, buflen);
}
--
Jens Axboe
-
To unsubscribe from this list: send the line "unsubscribe netdev" in
the body of a message to [EMAIL PROTECTED]
More majordomo info at http://vger.kernel.org/majordomo-info.html
