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Re: [Xen-devel] [PATCH 3/3] xen/blk[front|back]: Enhance discard support with secure erasing support.
>>> On 11.10.11 at 22:57, Konrad Rzeszutek Wilk <konrad.wilk@xxxxxxxxxx> wrote:
> --- a/drivers/block/xen-blkfront.c
> +++ b/drivers/block/xen-blkfront.c
>...
> @@ -705,7 +711,7 @@ static void blkif_free(struct blkfront_info *info, int
> suspend)
> static void blkif_completion(struct blk_shadow *s)
> {
> int i;
This function gets called for all types of requests, and hence must filter
discard ones now that what would be nr_segments can be non-zero,
e.g.
if (s->req.operation == BLKIF_OP_DISCARD)
return;
Jan
> - for (i = 0; i < s->req.nr_segments; i++)
> + for (i = 0; i < s->req.u1.nr_segments; i++)
> gnttab_end_foreign_access(s->req.u.rw.seg[i].gref, 0, 0UL);
> }
>
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