From: Mitko Haralanov <mitko@qlogic.com>
Date: Fri, 10 Jan 2014 16:41:28 +0000 (-0500)
Subject: truescale.cmds: Wait for /dev/ipath* devices before changing permissions
X-Git-Tag: compat-rdma-2014-01-30~6^2~6
X-Git-Url: https://openfabrics.org/gitweb/?a=commitdiff_plain;h=26fa31af17d0128463547a7f7d73ddfb79d8ce2d;p=~emulex%2Ftmp%2Fcompat-rdma%2F.git

truescale.cmds: Wait for /dev/ipath* devices before changing permissions

Wait for up to 30 seconds for the /dev/ipath* devices to appear
before attempting to change their permissions. This helps with
system which boot a bit slower on which the device permissions
could be left in the wrong state.

Signed-off-by: Mitko Haralanov <mitko@qlogic.com>
---

diff --git a/ofed_scripts/truescale.cmds b/ofed_scripts/truescale.cmds
index 0f445fe..d96147e 100644
--- a/ofed_scripts/truescale.cmds
+++ b/ofed_scripts/truescale.cmds
@@ -306,9 +306,17 @@ start)
 	mount -t ipathfs none /ipathfs
 
 	# make sure /dev/ipath files get created with correct permissions
-	if [ ! -c /dev/ipath ]; then sleep 2; fi
-	if [ ! -c /dev/ipath ]; then sleep 3; fi
-	chmod 666 /dev/ipath /dev/ipath[0-9]* >/dev/null 2>&1
+	typeset -i timeout=30 count=0
+	while [ $((count++)) -lt $timeout ]; do
+	    if [ -c /dev/ipath ]; then
+		chmod 666 /dev/ipath /dev/ipath[0-9]* >/dev/null 2>&1
+		break
+	    fi
+	    sleep 1
+	done
+	if [ $count -ge $timeout ]; then
+	    warn_and_log Failed to modify permissions on /dev/ipath\* files
+	fi
 	
 	set_irq_affinity
 	;;