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Commit 765b34fd authored by Asias He's avatar Asias He Committed by Nicholas Bellinger
Browse files

tcm_vhost: Introduce iov_num_pages 



Add a helper to calculate the number of pages needed for a iov entry.

(nab: Drop unnecessary inline)

Signed-off-by: default avatarAsias He <asias@redhat.com>
Signed-off-by: default avatarNicholas Bellinger <nab@linux-iscsi.org>
parent 9d6064a3

drivers/vhost/tcm_vhost.c

+6 −0
Original line number Diff line number Diff line
@@ -77,6 +77,12 @@ static struct workqueue_struct *tcm_vhost_workqueue; 
static DEFINE_MUTEX(tcm_vhost_mutex);

static LIST_HEAD(tcm_vhost_list);



static int iov_num_pages(struct iovec *iov)

{

	return (PAGE_ALIGN((unsigned long)iov->iov_base + iov->iov_len) -

	       ((unsigned long)iov->iov_base & PAGE_MASK)) >> PAGE_SHIFT;

}



static int tcm_vhost_check_true(struct se_portal_group *se_tpg)

{

	return 1;