[S390] dasd: add High Performance FICON multitrack support

Some storage systems support multitrack High Performance FICON
requests, which read or write data to more than one track.
This patch enables the DASD device driver to generate multitrack
High Performance FICON requests.

Signed-off-by: Stefan Weinhuber <wein@de.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>

1 files changed, 0 insertions, 4 deletions

diff --git a/drivers/s390/block/dasd.c b/drivers/s390/block/dasd.c
index faa7d425cb9c..605f96f154a5 100644
--- a/drivers/s390/block/dasd.c
+++ b/drivers/s390/block/dasd.c
@@ -745,10 +745,6 @@ struct dasd_ccw_req *dasd_smalloc_request(int magic, int cplength,
         char *data;
         int size;
 
-        /* Sanity checks */
-        BUG_ON(datasize > PAGE_SIZE ||
-             (cplength*sizeof(struct ccw1)) > PAGE_SIZE);
-
         size = (sizeof(struct dasd_ccw_req) + 7L) & -8L;
         if (cplength > 0)
                 size += cplength * sizeof(struct ccw1);