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c1d3be19d7
The only exception is `cmd/vdev_id/vdev_id` which might be a subject of refactoring (see #12084) Reviewed-by: Brian Behlendorf <behlendorf1@llnl.gov> Reviewed-by: Ahelenia Ziemiańska <nabijaczleweli@nabijaczleweli.xyz> Signed-off-by: szubersk <szuberskidamian@gmail.com> Closes #12912
29 lines
682 B
Bash
Executable File
29 lines
682 B
Bash
Executable File
#!/bin/sh
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#
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# Show device mapper dependent / underlying devices. This is useful for
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# looking up the /dev/sd* devices associated with a dm or multipath device.
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#
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if [ "$1" = "-h" ] ; then
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echo "Show device mapper dependent (underlying) devices."
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exit
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fi
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# shellcheck disable=SC2154
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dev="$VDEV_PATH"
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# If the VDEV path is a symlink, resolve it to a real device
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if [ -L "$dev" ] ; then
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dev=$(readlink "$dev")
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fi
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dev="${dev##*/}"
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val=""
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if [ -d "/sys/class/block/$dev/slaves" ] ; then
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# ls -C: output in columns, no newlines, two spaces (change to one)
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# shellcheck disable=SC2012
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val=$(ls -C "/sys/class/block/$dev/slaves" | tr -s '[:space:]' ' ')
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fi
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echo "dm-deps=$val"
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