diff options
| author | Horst Hummel <horst.hummel@de.ibm.com> | 2007-02-05 21:17:24 +0100 |
|---|---|---|
| committer | Martin Schwidefsky <schwidefsky@de.ibm.com> | 2007-02-05 21:17:24 +0100 |
| commit | 336c340b682daa283acf9202a07c4fd5c28e53a5 (patch) | |
| tree | 2543dfac49863f3058aa5042727d44f0ba2aff33 /drivers/s390/block/dasd.c | |
| parent | db2738197b52f02f4c599c1ae3f66ae1894406cd (diff) | |
| download | linux-336c340b682daa283acf9202a07c4fd5c28e53a5.tar.bz2 | |
[S390] dasd: fix unconditional reserve handling.
The reserve/release IOCTLs sometimes do not work. If second system
does a 'steal lock' the pending unit check (Format 3 Msg F) is
delivered. Since ERP is disabled for reserve/release, the IOCTL call
fails. We have to allow basic ERP (retries) for reserve/release IOCTLs.
Signed-off-by: Horst Hummel <horst.hummel@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 | 6 |
1 files changed, 3 insertions, 3 deletions
diff --git a/drivers/s390/block/dasd.c b/drivers/s390/block/dasd.c index 5b48a9c0966b..f208940c463c 100644 --- a/drivers/s390/block/dasd.c +++ b/drivers/s390/block/dasd.c @@ -1022,8 +1022,6 @@ dasd_int_handler(struct ccw_device *cdev, unsigned long intparm, irb->scsw.cstat == 0 && !irb->esw.esw0.erw.cons) era = dasd_era_none; - else if (!test_bit(DASD_CQR_FLAGS_USE_ERP, &cqr->flags)) - era = dasd_era_fatal; /* don't recover this request */ else if (irb->esw.esw0.erw.cons) era = device->discipline->examine_error(cqr, irb); else @@ -1127,7 +1125,9 @@ restart: cqr->status = DASD_CQR_FAILED; cqr->stopclk = get_clock(); } else { - if (cqr->irb.esw.esw0.erw.cons) { + if (cqr->irb.esw.esw0.erw.cons && + test_bit(DASD_CQR_FLAGS_USE_ERP, + &cqr->flags)) { erp_fn = device->discipline-> erp_action(cqr); erp_fn(cqr); |