Looks good.
Reviewed-by: Christoph Hellwig <hch@xxxxxx>
Minor comments below:
On Wed, Mar 28, 2012 at 04:19:16PM +1100, Dave Chinner wrote:
> - end = bp->b_file_offset + bp->b_buffer_length;
> - page_count = xfs_buf_btoc(end) - xfs_buf_btoct(bp->b_file_offset);
> + end = BBTOB(bp->b_bn) + bp->b_buffer_length;
> + page_count = xfs_buf_btoc(end) - xfs_buf_btoct(BBTOB(bp->b_bn));
Btw, xfs_buf_btoc and xfs_buf_btoct are more remoal candidates,
they actually make the code harder to read compared to using the
opencoded arithmetics..
> numbytes = numblks << BBSHIFT;
>
> /* Check for IOs smaller than the sector size / not sector aligned */
> ASSERT(!(numbytes < (1 << btp->bt_sshift)));
> - ASSERT(!(offset & (xfs_off_t)btp->bt_smask));
> + ASSERT(!(BBTOB(blkno) & (xfs_off_t)btp->bt_smask));
I don't think it makes sense to keep this assert, given that the
return value from BBTOB is aligned by defintion.
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