diff options
| author | Horst Hummel <horst.hummel@de.ibm.com> | 2007-02-05 23:17:24 +0300 |
|---|---|---|
| committer | Martin Schwidefsky <schwidefsky@de.ibm.com> | 2007-02-05 23:17:24 +0300 |
| commit | 336c340b682daa283acf9202a07c4fd5c28e53a5 (patch) | |
| tree | 2543dfac49863f3058aa5042727d44f0ba2aff33 /drivers/s390/block/dasd_eckd.c | |
| parent | db2738197b52f02f4c599c1ae3f66ae1894406cd (diff) | |
| download | linux-336c340b682daa283acf9202a07c4fd5c28e53a5.tar.xz | |
[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_eckd.c')
| -rw-r--r-- | drivers/s390/block/dasd_eckd.c | 6 |
1 files changed, 3 insertions, 3 deletions
diff --git a/drivers/s390/block/dasd_eckd.c b/drivers/s390/block/dasd_eckd.c index b126be1b25a9..d59115cce6dc 100644 --- a/drivers/s390/block/dasd_eckd.c +++ b/drivers/s390/block/dasd_eckd.c @@ -1380,7 +1380,7 @@ dasd_eckd_release(struct dasd_device *device) cqr->device = device; clear_bit(DASD_CQR_FLAGS_USE_ERP, &cqr->flags); set_bit(DASD_CQR_FLAGS_FAILFAST, &cqr->flags); - cqr->retries = 0; + cqr->retries = 2; /* set retry counter to enable basic ERP */ cqr->expires = 2 * HZ; cqr->buildclk = get_clock(); cqr->status = DASD_CQR_FILLED; @@ -1420,7 +1420,7 @@ dasd_eckd_reserve(struct dasd_device *device) cqr->device = device; clear_bit(DASD_CQR_FLAGS_USE_ERP, &cqr->flags); set_bit(DASD_CQR_FLAGS_FAILFAST, &cqr->flags); - cqr->retries = 0; + cqr->retries = 2; /* set retry counter to enable basic ERP */ cqr->expires = 2 * HZ; cqr->buildclk = get_clock(); cqr->status = DASD_CQR_FILLED; @@ -1459,7 +1459,7 @@ dasd_eckd_steal_lock(struct dasd_device *device) cqr->device = device; clear_bit(DASD_CQR_FLAGS_USE_ERP, &cqr->flags); set_bit(DASD_CQR_FLAGS_FAILFAST, &cqr->flags); - cqr->retries = 0; + cqr->retries = 2; /* set retry counter to enable basic ERP */ cqr->expires = 2 * HZ; cqr->buildclk = get_clock(); cqr->status = DASD_CQR_FILLED; |