Commit 8fa56aed authored Jul 18, 2014 by Stefan Haberland Committed by Martin Schwidefsky Jul 22, 2014

dasd: fix list_del corruption during format



If I/O errors occur during format a kernel panic with a list_del
corruption may occur.

Stop error recovery procedure after an erp action was taken.

Signed-off-by: Stefan Haberland <stefan.haberland@de.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>

parent 931a3dce

drivers/s390/block/dasd.c

+5 −1

Original line number	Diff line number	Diff line
		@@ -2307,9 +2307,13 @@ static int _dasd_sleep_on_queue(struct list_head *ccw_queue, int interruptible)

		rc = 0;
		list_for_each_entry_safe(cqr, n, ccw_queue, blocklist) {
		if (__dasd_sleep_on_erp(cqr))
		if (__dasd_sleep_on_erp(cqr)) {
		if (!cqr->status == DASD_CQR_TERMINATED &&
		!cqr->status == DASD_CQR_NEED_ERP)
		break;
		rc = 1;
		}
		}
		if (rc)
		goto retry;