Hello,
On Mon, Sep 10, 2012 at 05:22:26PM -0700, Kent Overstreet wrote:
> +void bio_copy_data(struct bio *dst, struct bio *src)
> +{
...
> + src_p = kmap_atomic(src_bv->bv_page);
> + dst_p = kmap_atomic(dst_bv->bv_page);
> +
> + memcpy(dst_p + dst_bv->bv_offset,
> + src_p + src_bv->bv_offset,
> + bytes);
> +
> + kunmap_atomic(dst_p);
> + kunmap_atomic(src_p);
Wrap these in preempt_disable/enable() to allow the function to be
called from any context?
Thanks.
--
tejun
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