[PATCH] aoe status.sh: handle sysfs not in /etc/mtab

Suse 9.1 Pro doesn't put /sys in /etc/mtab.  This patch makes the
example aoe status.sh script work when sysfs is mounted but `mount`
doesn't mention sysfs.


aoe status.sh: handle sysfs not in /etc/mtab
Signed-off-by: Ed L. Cashin <ecashin@coraid.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>

Documentation/aoe/status.sh

@@ -4,10 +4,13 @@
 set -e
 format="%8s\t%8s\t%8s\n"
 me=`basename $0`
+sysd=${sysfs_dir:-/sys}
 
 # printf "$format" device mac netif state
 
-test -z "`mount | grep sysfs`" && {
+# Suse 9.1 Pro doesn't put /sys in /etc/mtab
+#test -z "`mount | grep sysfs`" && {
+test ! -d "$sysd/block" && {
 	echo "$me Error: sysfs is not mounted" 1>&2
 	exit 1
 }
@@ -16,7 +19,7 @@ test -z "`lsmod | grep '^aoe'`" && {
 	exit 1
 }
 
-for d in `ls -d /sys/block/etherd* 2>/dev/null | grep -v p` end; do
+for d in `ls -d $sysd/block/etherd* 2>/dev/null | grep -v p` end; do
 	# maybe ls comes up empty, so we use "end"
 	test $d = end && continue