Merge Btrfs into fs/btrfs
[pandora-kernel.git] / Documentation / aoe / mkshelf.sh
1 #! /bin/sh
2
3 if test "$#" != "2"; then
4         echo "Usage: sh `basename $0` {dir} {shelfaddress}" 1>&2
5         echo "       n_partitions=16 sh `basename $0` {dir} {shelfaddress}" 1>&2
6         exit 1
7 fi
8 n_partitions=${n_partitions:-16}
9 dir=$1
10 shelf=$2
11 nslots=16
12 maxslot=`echo $nslots 1 - p | dc`
13 MAJOR=152
14
15 set -e
16
17 minor=`echo $nslots \* $shelf \* $n_partitions | bc`
18 endp=`echo $n_partitions - 1 | bc`
19 for slot in `seq 0 $maxslot`; do
20         for part in `seq 0 $endp`; do
21                 name=e$shelf.$slot
22                 test "$part" != "0" && name=${name}p$part
23                 rm -f $dir/$name
24                 mknod -m 0660 $dir/$name b $MAJOR $minor
25
26                 minor=`expr $minor + 1`
27         done
28 done