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[S390] cio: ensure proper locking during device recognition
authorPeter Oberparleiter <peter.oberparleiter@de.ibm.com>
Mon, 7 Dec 2009 11:51:23 +0000 (12:51 +0100)
committerMartin Schwidefsky <sky@mschwide.boeblingen.de.ibm.com>
Mon, 7 Dec 2009 11:51:30 +0000 (12:51 +0100)
commit1f5bd3848bfc56de4c32ef6971a6a966776204bb
tree0554af8ced7ac924e9f1bbe3c92a4de52767950dtree | snapshot (tar.gz zip)
parent7c4d964fa4e857d6fb6b63159a898a5c63c173bfcommit | diff
[S390] cio: ensure proper locking during device recognition

Device recognition needs to be started with the ccw device lock
held to prevent race conditions between I/O starting and interrupt
reception.

Signed-off-by: Peter Oberparleiter <peter.oberparleiter@de.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
drivers/s390/cio/device.c diff | blob | blame | history
Motorola kernel-slsi