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s390/dasd: make query host access interruptible

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If the DASD device gets blocked for any reason, e.g. because it is reserved
somewhere, the host_access_count sysfs entry or the host_access_list
debugfs entry may sleep forever. Make it interruptible so that userspace
can use ^C to abort the operation.

Signed-off-by: Stefan Haberland <sth@linux.vnet.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
This commit is contained in:
Stefan Haberland 2016-09-22 10:49:40 +02:00 committed by Martin Schwidefsky
parent c020d722b1
commit f50af850f4
1 changed files with 1 additions and 1 deletions
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2
drivers/s390/block/dasd_eckd.c
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@ -5201,7 +5201,7 @@ static int dasd_eckd_query_host_access(struct dasd_device *device,
cqr->buildclk = get_tod_clock();
cqr->status = DASD_CQR_FILLED;
rc = dasd_sleep_on(cqr);
rc = dasd_sleep_on_interruptible(cqr);
if (rc == 0) {
*data = *host_access;
} else {