From 13de227bcd80fbdaeebe1f31154487dddb7d5b1e Mon Sep 17 00:00:00 2001 From: Holger Smolinski Date: Fri, 9 Jan 2009 12:14:51 +0100 Subject: [S390] dasd: add device attribute to disable blocking on lost paths When the connection between host and storage server is lost, the dasd device driver usually blocks all I/O on affected devices and waits for them to reappear. In some setups however it would be better if the I/O is returned as error so that device can be recovered by some other means, eg. in a raid or multipath setup. Signed-off-by: Holger Smolinski Signed-off-by: Stefan Weinhuber Signed-off-by: Martin Schwidefsky --- drivers/s390/block/dasd_fba.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) (limited to 'drivers/s390/block/dasd_fba.c') diff --git a/drivers/s390/block/dasd_fba.c b/drivers/s390/block/dasd_fba.c index 7d442aeff3d..f1d17602169 100644 --- a/drivers/s390/block/dasd_fba.c +++ b/drivers/s390/block/dasd_fba.c @@ -355,7 +355,8 @@ static struct dasd_ccw_req *dasd_fba_build_cp(struct dasd_device * memdev, recid++; } } - if (blk_noretry_request(req)) + if (blk_noretry_request(req) || + block->base->features & DASD_FEATURE_FAILFAST) set_bit(DASD_CQR_FLAGS_FAILFAST, &cqr->flags); cqr->startdev = memdev; cqr->memdev = memdev; -- cgit v1.2.3