diff options
| author | Hannes Reinecke <hare@suse.de> | 2013-01-30 09:26:14 +0000 |
|---|---|---|
| committer | Martin Schwidefsky <schwidefsky@de.ibm.com> | 2013-07-01 17:31:20 +0200 |
| commit | a2ace46632fb38c7a3771f2f0d235a4295e83bcf (patch) | |
| tree | 3d69366b49c18967fda51cb6b0355148f91f7d6f /drivers/s390/block/dasd_eckd.c | |
| parent | 1fbdb8be9bfc91efd45720493c7ecae884ae22bd (diff) | |
s390/dasd: Implement block timeout handling
This patch implements generic block layer timeout handling
callbacks for DASDs. When the timeout expires the respective
cqr is aborted.
With this timeout handler time-critical request abort
is guaranteed as the abort does not depend on the internal
state of the various DASD driver queues.
Signed-off-by: Hannes Reinecke <hare@suse.de>
Acked-by: Stefan Weinhuber <wein@de.ibm.com>
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_eckd.c')
| -rw-r--r-- | drivers/s390/block/dasd_eckd.c | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/drivers/s390/block/dasd_eckd.c b/drivers/s390/block/dasd_eckd.c index 05f5694c9c4..e61a6deea3c 100644 --- a/drivers/s390/block/dasd_eckd.c +++ b/drivers/s390/block/dasd_eckd.c @@ -2381,6 +2381,10 @@ sleep: static void dasd_eckd_handle_terminated_request(struct dasd_ccw_req *cqr) { + if (cqr->retries < 0) { + cqr->status = DASD_CQR_FAILED; + return; + } cqr->status = DASD_CQR_FILLED; if (cqr->block && (cqr->startdev != cqr->block->base)) { dasd_eckd_reset_ccw_to_base_io(cqr); |