23 lines
424 B
Bash
23 lines
424 B
Bash
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#!/bin/sh
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set -e
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defragment() {
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btrfs filesystem defragment -v -r -czstd "$@"
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}
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list_subvols() {
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btrfs subvolume list "$@" | awk '{ print $9 }'
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}
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is_readonly() {
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btrfs subvolume show "$@" | grep -q "readonly"
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}
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BTRFS_ROOT="${BTRFS_ROOT:-/mnt/btr_pool}"
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for subvol in $(list_subvols "$BTRFS_ROOT"); do
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subvol_path="$BTRFS_ROOT"/"$subvol"
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is_readonly "$subvol_path" || defragment "$subvol_path"
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done
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