mirror of
https://github.com/xen-project/xen.git
synced 2026-10-28 10:11:27 +01:00
Manuel Bouyer
82ed3155fe
When a domain is destroyed, xparams may not be available any more when the block script is called to unconfigure the vnd. Check xparam only at configure time, and just unconfigure any vnd present in the xenstore. Signed-off-by: Manuel Bouyer <bouyer@netbsd.org> Reviewed-by: Roger Pau Monné <roger.pau@citrix.com>
91 lines
2.0 KiB
Bash
91 lines
2.0 KiB
Bash
#!/bin/sh -e
|
|
|
|
# $NetBSD: block-nbsd,v 1.1.1.1 2008/08/07 20:26:57 cegger Exp $
|
|
# Usage: block xsdir_backend_path state
|
|
|
|
DIR=$(dirname "$0")
|
|
. "${DIR}/hotplugpath.sh"
|
|
. "${DIR}/locking.sh"
|
|
|
|
PATH=${bindir}:${sbindir}:${LIBEXEC_BIN}:/bin:/usr/bin:/sbin:/usr/sbin
|
|
export PATH
|
|
|
|
error() {
|
|
echo "$@" >&2
|
|
xenstore-write $xpath/hotplug-status error \
|
|
$xpath/hotplug-error "$@"
|
|
exit 1
|
|
}
|
|
|
|
|
|
xpath=$1
|
|
xstatus=$2
|
|
xparams=$(xenstore-read "$xpath/params")
|
|
|
|
case $xstatus in
|
|
6)
|
|
# device removed
|
|
vnd=$(xenstore-read "$xpath/vnd" || echo none)
|
|
if [ $vnd != none ]; then
|
|
vnconfig -u $vnd
|
|
fi
|
|
xenstore-rm $xpath
|
|
exit 0
|
|
;;
|
|
2)
|
|
if [ -b "$xparams" ]; then
|
|
xtype="phy"
|
|
elif [ -f "$xparams" ]; then
|
|
xtype="file"
|
|
elif [ -z "$xparams" ]; then
|
|
error "$xpath/params is empty, unable to attach block device."
|
|
else
|
|
error "$xparams is not a valid file type to use as block device." \
|
|
"Only block and regular image files accepted."
|
|
fi
|
|
case $xtype in
|
|
file)
|
|
# Store the list of available vnd(4) devices in
|
|
#``available_disks'', and mark them as ``free''.
|
|
list=`ls -1 /dev/vnd[0-9]*d | sed "s,/dev/vnd,,;s,d,," | sort -n`
|
|
for i in $list; do
|
|
disk="vnd$i"
|
|
available_disks="$available_disks $disk"
|
|
eval $disk=free
|
|
done
|
|
claim_lock block
|
|
# Mark the used vnd(4) devices as ``used''.
|
|
for disk in `sysctl hw.disknames`; do
|
|
case $disk in
|
|
vnd[0-9]*) eval $disk=used ;;
|
|
esac
|
|
done
|
|
# Configure the first free vnd(4) device.
|
|
for disk in $available_disks; do
|
|
eval status=\$$disk
|
|
if [ "$status" = "free" ] && \
|
|
vnconfig /dev/${disk}d $xparams >/dev/null; then
|
|
device=/dev/${disk}d
|
|
break
|
|
fi
|
|
done
|
|
release_lock block
|
|
if [ x$device = x ] ; then
|
|
error "no available vnd device"
|
|
fi
|
|
xenstore-write $xpath/vnd $device
|
|
;;
|
|
phy)
|
|
device=$xparams
|
|
;;
|
|
esac
|
|
physical_device=$(stat -L -f '%r' "$device")
|
|
xenstore-write $xpath/physical-device $physical_device
|
|
xenstore-write $xpath/hotplug-status connected
|
|
exit 0
|
|
;;
|
|
*)
|
|
exit 0
|
|
;;
|
|
esac
|