On Tue, 2013-01-22 at 11:20 +0800, Asias He wrote:
> Signed-off-by: Asias He <[email protected]>
> ---
Applied to target-pending/for-next.
Thanks!
--nab
> drivers/vhost/tcm_vhost.c | 8 +++-----
> 1 file changed, 3 insertions(+), 5 deletions(-)
>
> diff --git a/drivers/vhost/tcm_vhost.c b/drivers/vhost/tcm_vhost.c
> index ca35c16..796a6b0 100644
> --- a/drivers/vhost/tcm_vhost.c
> +++ b/drivers/vhost/tcm_vhost.c
> @@ -479,11 +479,9 @@ static int vhost_scsi_map_iov_to_sgl(struct
> tcm_vhost_cmd *tv_cmd,
> * Find out how long sglist needs to be
> */
> sgl_count = 0;
> - for (i = 0; i < niov; i++) {
> - sgl_count += (((uintptr_t)iov[i].iov_base + iov[i].iov_len +
> - PAGE_SIZE - 1) >> PAGE_SHIFT) -
> - ((uintptr_t)iov[i].iov_base >> PAGE_SHIFT);
> - }
> + for (i = 0; i < niov; i++)
> + sgl_count += iov_num_pages(&iov[i]);
> +
> /* TODO overflow checking */
>
> sg = kmalloc(sizeof(tv_cmd->tvc_sgl[0]) * sgl_count, GFP_ATOMIC);
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