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| author |   Stefan Weinhuber <wein@de.ibm.com> | 2011-01-05 12:48:02 +0100 |
|---|---|---|
| committer |   Martin Schwidefsky <sky@mschwide.boeblingen.de.ibm.com> | 2011-01-05 12:47:29 +0100 |
| commit | ef19298b406f93af4bb249f0776deb8366e97532 (patch) | |
| tree | 8b729739a57fd50e9fe67232b1c3b1264bf678a5 /drivers/s390/block/dasd.c | |
| parent | [S390] cio: reduce memory consumption of itcw structures (diff) | |
| download | linux-dev-ef19298b406f93af4bb249f0776deb8366e97532.tar.xz linux-dev-ef19298b406f93af4bb249f0776deb8366e97532.zip | |
[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>
Diffstat (limited to 'drivers/s390/block/dasd.c')
| -rw-r--r-- | drivers/s390/block/dasd.c | 4 |
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); |