tree 4e56fae8cb7f8dcbc022771436e573c5c12b94fb
parent b652277b09d3d030cb074cc6a98ba80b34244c03
author Martin Schwidefsky <schwidefsky@de.ibm.com> 1299171367 +0100
committer Martin Schwidefsky <sky@mschwide.boeblingen.de.ibm.com> 1299171374 +0100

[S390] tape: deadlock on system work queue

The 34xx and 3590 tape driver uses the system work queue to defer work
from the interrupt function to process context, e.g. a medium sense
after an unsolicited interrupt. The tape commands started by the work
handler need to be asynchronous, otherwise a deadlock on the system
work queue can occur.

Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>