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s390: fba dasd i/o errors.

PATCH In review Martin Schwidefsky 1 participant 1 message Jun 21, 2005

Subsystems (2)
s390 s390 DASD driver
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Martin Schwidefsky

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PATCH 7/16 s390: fba dasd i/o errors.

[patch 7/16] s390: fba dasd i/o errors.

From: Horst Hummel <[email protected]>

The FBA discipline does not use retries for failed requests. A request fails after the first unsuccessful start attempt. There are some rare conditions (e.g. CIO path recovery) in which the start of an i/o on a fba device can fail. A tiny amount of retries is therefore reasonable.

Signed-off-by Martin Schwidefsky <[email protected]>

diffstat:

 drivers/s390/block/dasd_fba.c |    4 +++-
 1 files changed, 3 insertions(+), 1 deletion(-)
drivers/s390/block/dasd_fba.c +3 -1
diff -urpN linux-2.6/drivers/s390/block/dasd_fba.c linux-2.6-patched/drivers/s390/block/dasd_fba.c
@@ -4,7 +4,7 @@
  * Bugreports.to..: <[email protected]>
  * (C) IBM Corporation, IBM Deutschland Entwicklung GmbH, 1999,2000
  *
- * $Revision: 1.39 $
+ * $Revision: 1.40 $
  */
 
 #include <linux/config.h>

@@ -354,6 +354,8 @@ dasd_fba_build_cp(struct dasd_device * d
 	}
 	cqr->device = device;
 	cqr->expires = 5 * 60 * HZ;	/* 5 minutes */
+	cqr->retries = 32;
+	cqr->buildclk = get_clock();
 	cqr->status = DASD_CQR_FILLED;
 	return cqr;
 }