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| author |   Ursula Braun <braunu@de.ibm.com> | 2008-02-09 18:24:32 +0100 |
|---|---|---|
| committer |   Martin Schwidefsky <schwidefsky@de.ibm.com> | 2008-02-09 18:24:39 +0100 |
| commit | bf3f837804997e5f5d9888051e9e5356961af0f2 (patch) | |
| tree | 4d2c70d51edae38b92803f38fa025ee4875e0a34 /arch/s390 | |
| parent | [S390] VMEM_MAX_PHYS overflow on 31 bit. (diff) | |
| download | linux-dev-bf3f837804997e5f5d9888051e9e5356961af0f2.tar.xz linux-dev-bf3f837804997e5f5d9888051e9e5356961af0f2.zip | |
[S390] qdio: avoid hang when establishing qdio queues
If qdio establish runs in parallel with a channel error,
ccw_device_start_timeout may not trigger the qdio_timeout_handler.
In this case neither QDIO_IRQ_STATE_ESTABLISHED nor
QDIO_IRQ_STATE_ERR is reached and the following wait_event hangs
forever.
Solution: do not make use of the timeout option with
ccw_device_start, but add a timeout to the following wait_event.
Signed-off-by: Ursula Braun <braunu@de.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
Diffstat (limited to 'arch/s390')
0 files changed, 0 insertions, 0 deletions