On Wed, 7 Feb 2007 10:26:56 +1100
Neil Brown <[email protected]> wrote:
> +static int bio_fits_rdev(struct bio *bi)
> +{
> + request_queue_t *q = bdev_get_queue(bi->bi_bdev);
> +
> + if ((bi->bi_size>>9) > q->max_sectors)
> + return 0;
> + blk_recount_segments(q, bi);
> + if (bi->bi_phys_segments > q->max_phys_segments ||
> + bi->bi_hw_segments > q->max_hw_segments)
> + return 0;
> +
> + if (q->merge_bvec_fn)
> + /* it's too hard to apply the merge_bvec_fn at this stage,
> + * just just give up
> + */
> + return 0;
> +
> + return 1;
> +}
Isn't think going to return 0 rather a lot of the time?
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