[SG] Update drivers to use sg helpers

Signed-off-by: Jens Axboe <jens.axboe@oracle.com>

1 files changed, 7 insertions, 8 deletions

diff --git a/drivers/scsi/iscsi_tcp.c b/drivers/scsi/iscsi_tcp.c
index a21455d0274c..6ce4109efdf3 100644
--- a/drivers/scsi/iscsi_tcp.c
+++ b/drivers/scsi/iscsi_tcp.c
@@ -70,9 +70,7 @@ module_param_named(max_lun, iscsi_max_lun, uint, S_IRUGO);
 static inline void
 iscsi_buf_init_iov(struct iscsi_buf *ibuf, char *vbuf, int size)
 {
-        ibuf->sg.page = virt_to_page(vbuf);
-        ibuf->sg.offset = offset_in_page(vbuf);
-        ibuf->sg.length = size;
+        sg_init_one(&ibuf->sg, vbuf, size);
         ibuf->sent = 0;
         ibuf->use_sendmsg = 1;
 }
@@ -80,13 +78,14 @@ iscsi_buf_init_iov(struct iscsi_buf *ibuf, char *vbuf, int size)
 static inline void
 iscsi_buf_init_sg(struct iscsi_buf *ibuf, struct scatterlist *sg)
 {
-        ibuf->sg.page = sg->page;
+        sg_init_table(&ibuf->sg, 1);
+        sg_set_page(&ibuf->sg, sg_page(sg));
         ibuf->sg.offset = sg->offset;
         ibuf->sg.length = sg->length;
         /*
          * Fastpath: sg element fits into single page
          */
-        if (sg->length + sg->offset <= PAGE_SIZE && !PageSlab(sg->page))
+        if (sg->length + sg->offset <= PAGE_SIZE && !PageSlab(sg_page(sg)))
                 ibuf->use_sendmsg = 0;
         else
                 ibuf->use_sendmsg = 1;
@@ -716,7 +715,7 @@ static int iscsi_scsi_data_in(struct iscsi_conn *conn)
         for (i = tcp_ctask->sg_count; i < scsi_sg_count(sc); i++) {
                 char *dest;
 
-                dest = kmap_atomic(sg[i].page, KM_SOFTIRQ0);
+                dest = kmap_atomic(sg_page(&sg[i]), KM_SOFTIRQ0);
                 rc = iscsi_ctask_copy(tcp_conn, ctask, dest + sg[i].offset,
                                       sg[i].length, offset);
                 kunmap_atomic(dest, KM_SOFTIRQ0);
@@ -1103,9 +1102,9 @@ iscsi_send(struct iscsi_conn *conn, struct iscsi_buf *buf, int size, int flags)
          * slab case.
          */
         if (buf->use_sendmsg)
-                res = sock_no_sendpage(sk, buf->sg.page, offset, size, flags);
+                res = sock_no_sendpage(sk, sg_page(&buf->sg), offset, size, flags);
         else
-                res = tcp_conn->sendpage(sk, buf->sg.page, offset, size, flags);
+                res = tcp_conn->sendpage(sk, sg_page(&buf->sg), offset, size, flags);
 
         if (res >= 0) {
                 conn->txdata_octets += res;