From c450ba0fc12153cb5d3fd582b4ec82c75217a989 Mon Sep 17 00:00:00 2001 From: Ed Cashin Date: Mon, 17 Dec 2012 16:04:14 -0800 Subject: aoe: allow user to disable target failure timeout With this change, the aoe driver treats the value zero as special for the aoe_deadsecs module parameter. Normally, this value specifies the number of seconds during which the driver will continue to attempt retransmits to an unresponsive AoE target. After aoe_deadsecs has elapsed, the aoe driver marks the aoe device as "down" and fails all I/O. The new meaning of an aoe_deadsecs of zero is for the driver to retransmit commands indefinitely. Signed-off-by: Ed Cashin Cc: Jens Axboe Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- drivers/block/aoe/aoecmd.c | 4 +++- 1 file changed, 3 insertions(+), 1 deletion(-) (limited to 'drivers/block/aoe') diff --git a/drivers/block/aoe/aoecmd.c b/drivers/block/aoe/aoecmd.c index da360f95c8ea..abf4ad2d3e18 100644 --- a/drivers/block/aoe/aoecmd.c +++ b/drivers/block/aoe/aoecmd.c @@ -812,7 +812,9 @@ rexmit_timer(ulong vp) since = tsince_hr(f); n = f->waited_total + since; n /= USEC_PER_SEC; - if (n > aoe_deadsecs && !(f->flags & FFL_PROBE)) { + if (aoe_deadsecs + && n > aoe_deadsecs + && !(f->flags & FFL_PROBE)) { /* Waited too long. Device failure. * Hang all frames on first hash bucket for downdev * to clean up. -- cgit v1.2.3-58-ga151