Messages in this thread Patch in this message | | | Date | Fri, 29 Jul 2005 19:12:23 +0200 | From | Martin Schwidefsky <> | Subject | [patch 3/4] s390: device recognition. |
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From: Cornelia Huck <cohuck@de.ibm.com>
Close a small window where a device may be not operational again after senseid finished and the "same device" check fails due to dev=0000 by checking for dnv after stsch() by then setting the device to not operational. (No need to check for dnv in ccw_device_handle_oper() again since we don't do stsch() into the subchannel's schib in the meantime and will get a crw anyway if the device becomes not oper again).
Signed-off-by: Cornelia Huck <cohuck@de.ibm.com> Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
diffstat: drivers/s390/cio/device_fsm.c | 3 +++ 1 files changed, 3 insertions(+)
diff -urpN linux-2.6/drivers/s390/cio/device_fsm.c linux-2.6-patched/drivers/s390/cio/device_fsm.c --- linux-2.6/drivers/s390/cio/device_fsm.c 2005-06-17 21:48:29.000000000 +0200 +++ linux-2.6-patched/drivers/s390/cio/device_fsm.c 2005-07-29 18:43:39.000000000 +0200 @@ -235,6 +235,9 @@ ccw_device_recog_done(struct ccw_device sch->schib.pmcw.pam & sch->schib.pmcw.pom & sch->opm; + /* Check since device may again have become not operational. */ + if (!sch->schib.pmcw.dnv) + state = DEV_STATE_NOT_OPER; if (cdev->private->state == DEV_STATE_DISCONNECTED_SENSE_ID) /* Force reprobe on all chpids. */ old_lpm = 0; - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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