[PATCH] aoe [2/8]: support dynamic resizing of AoE devices

Allow the driver to recognize AoE devices that have changed size.
Devices not in use are updated automatically, and devices that are in
use are updated at user request.

Signed-off-by: "Ed L. Cashin" <ecashin@coraid.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>

2 files changed, 3 insertions, 0 deletions

diff --git a/Documentation/aoe/mkdevs.sh b/Documentation/aoe/mkdevs.sh
index ec5a6de1cd7b..97374aacacb2 100644
--- a/Documentation/aoe/mkdevs.sh
+++ b/Documentation/aoe/mkdevs.sh
@@ -27,6 +27,8 @@ rm -f $dir/discover
 mknod -m 0200 $dir/discover c $MAJOR 3
 rm -f $dir/interfaces
 mknod -m 0200 $dir/interfaces c $MAJOR 4
+rm -f $dir/revalidate
+mknod -m 0200 $dir/revalidate c $MAJOR 5
 
 export n_partitions
 mkshelf=`echo $0 | sed 's!mkdevs!mkshelf!'`
diff --git a/Documentation/aoe/udev.txt b/Documentation/aoe/udev.txt
index ab39d8bb634c..a7ed1dc4f331 100644
--- a/Documentation/aoe/udev.txt
+++ b/Documentation/aoe/udev.txt
@@ -18,6 +18,7 @@
 SUBSYSTEM="aoe", KERNEL="discover",     NAME="etherd/%k", GROUP="disk", MODE="0220"
 SUBSYSTEM="aoe", KERNEL="err",          NAME="etherd/%k", GROUP="disk", MODE="0440"
 SUBSYSTEM="aoe", KERNEL="interfaces",   NAME="etherd/%k", GROUP="disk", MODE="0220"
+SUBSYSTEM="aoe", KERNEL="revalidate",   NAME="etherd/%k", GROUP="disk", MODE="0220"
 
 # aoe block devices     
 KERNEL="etherd*",       NAME="%k", GROUP="disk"