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| author | Jan Höppner <hoeppner@linux.ibm.com> | 2018-07-03 10:56:51 +0200 |
|---|---|---|
| committer | Vasily Gorbik <gor@linux.ibm.com> | 2019-07-11 20:39:54 +0200 |
| commit | 9e12e54c7a8f616190beffb0f7ce778a86aec175 (patch) | |
| tree | ad64419a0817aa9e476abac0e65effdb4248b2c2 /drivers/s390/block/dasd_eer.c | |
| parent | 7e64db1597fe114b83fe17d0ba96c6aa5fca419a (diff) | |
| download | linux-9e12e54c7a8f616190beffb0f7ce778a86aec175.tar.gz | |
s390/dasd: Handle out-of-space constraint
The storage server issues three different types of out-of-space messages
whenever the Extent Pool or Extent Repository space runs short. When a
configured warning watermark is reached, the physical space is
completeley exhausted, or the capacity constraints have been relieved, a
message is received.
A log entry for the sysadmin to react to is generated in any case. In
case the physical space is completely exhausted, sense data that reads
"no space left on device" is received. In this case, currently running
I/O will be blocked until space has either been released or added to the
extent pool, and a relieve message was received via an attention
interrupt.
Signed-off-by: Jan Höppner <hoeppner@linux.ibm.com>
Reviewed-by: Stefan Haberland <sth@linux.ibm.com>
Signed-off-by: Vasily Gorbik <gor@linux.ibm.com>
Diffstat (limited to 'drivers/s390/block/dasd_eer.c')
| -rw-r--r-- | drivers/s390/block/dasd_eer.c | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/drivers/s390/block/dasd_eer.c b/drivers/s390/block/dasd_eer.c index 93bb09da7fdc..5ae64af9ccea 100644 --- a/drivers/s390/block/dasd_eer.c +++ b/drivers/s390/block/dasd_eer.c @@ -386,6 +386,7 @@ void dasd_eer_write(struct dasd_device *device, struct dasd_ccw_req *cqr, dasd_eer_write_standard_trigger(device, cqr, id); break; case DASD_EER_NOPATH: + case DASD_EER_NOSPC: dasd_eer_write_standard_trigger(device, NULL, id); break; case DASD_EER_STATECHANGE: |