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grub script: improve snapshot listing performance (#93)

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Btrfs filesystems may be slow when listing snapshots and calculating
space usage for each.
And that space information is not needed and never used in the scipt.

So, add --disable-ununsed-space to all calls to btrfs.

See: https://github.com/Antynea/grub-btrfs/issues/91

Co-authored-by: Peter G <nephros@pearl.crownest.nephros.org>
This commit is contained in:
Peter Gantner
2020-07-17 22:43:27 +02:00
committed by GitHub
parent 92eef3079d
commit 6ff1fc7127
1 changed files with 3 additions and 3 deletions
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41_snapshots-btrfs
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@@ -242,11 +242,11 @@ snapshot_list()
if [ $? -eq 0 ]; then
if [ -s "/etc/snapper/configs/$snapper_config" ]; then
printf "# Info: snapper detected, using config '$snapper_config'\n" >&2
local snapper_ids=($(snapper --no-dbus -t 0 -c "$snapper_config" list | tail -n +3 | cut -d'|' -f 1))
local snapper_types=($(snapper --no-dbus -t 0 -c "$snapper_config" list | tail -n +3 | cut -d'|' -f 2))
local snapper_ids=($(snapper --no-dbus -t 0 -c "$snapper_config" list --disable-used-space | tail -n +3 | cut -d'|' -f 1))
local snapper_types=($(snapper --no-dbus -t 0 -c "$snapper_config" list --disable-used-space | tail -n +3 | cut -d'|' -f 2))
IFS=$'\n'
local snapper_descriptions=($(snapper --no-dbus -t 0 -c "$snapper_config" list | tail -n +3 | rev | cut -d'|' -f 2 | rev))
local snapper_descriptions=($(snapper --no-dbus -t 0 -c "$snapper_config" list --disable-used-space | tail -n +3 | rev | cut -d'|' -f 2 | rev))
else
printf "# Warning: snapper detected but config '$snapper_config' does not exist\n" >&2
fi