[dm-devel] [PATCH 28/30] multipath: fix setting of fast_io_fail_tmo

[Hannes Reinecke]

From: Petr Uzel <petr.uzel at suse.cz>

Setting fast_io_fail_tmo to the same value as dev_loss_tmo is
not allowed by the kernel. Increase dev_loss_tmo by 1 in such
cases to make it strictly greated than fast_io_fail_tmo.

Signed-off-by: Petr Uzel <petr.uzel at suse.cz>
---
 libmultipath/discovery.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/libmultipath/discovery.c b/libmultipath/discovery.c
index adfb1ba..e2b4f56 100644
--- a/libmultipath/discovery.c
+++ b/libmultipath/discovery.c
@@ -367,7 +367,7 @@ sysfs_set_rport_tmo(struct multipath *mpp, struct path *pp)
 			goto out;
 		}
 		if (mpp->fast_io_fail >= tmo) {
-			snprintf(value, 16, "%u", mpp->fast_io_fail);
+			snprintf(value, 16, "%u", mpp->fast_io_fail + 1);
 		}
 	} else if (mpp->dev_loss > 600) {
 		condlog(3, "%s: limiting dev_loss_tmo to 600, since "
-- 
1.7.12.4