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cl349@firebug.cl.cam.ac.uk
eccd1bf398
Fixes file: devices since unbind now runs after the backend driver closes the loopback device. Also moves name -> node translation into the backend domain. Signed-off-by: Christian Limpach <Christian.Limpach@cl.cam.ac.uk>
32 lines
645 B
Bash
Executable File
32 lines
645 B
Bash
Executable File
#!/bin/sh
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# Usage: block_loop [bind file|unbind node]
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#
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# The file argument to the bind command is the file we are to bind to a
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# loop device.
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#
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# The node argument to unbind is the name of the device node we are to
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# unbind.
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set -e
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case $1 in
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bind)
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for dev in /dev/loop*; do
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if losetup $dev $2; then
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major=$(stat -L -c %t "$dev")
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minor=$(stat -L -c %T "$dev")
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pdev=$(printf "0x%02x%02x" 0x$major 0x$minor)
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xenstore-write "$XENBUS_PATH"/physical-device $pdev \
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"$XENBUS_PATH"/node $dev
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exit 0
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fi
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done
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exit 1
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;;
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unbind)
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losetup -d $2
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exit 0
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;;
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esac
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