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zvol_wait script should ignore partially received zvols #9260

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merged 1 commit into from
Sep 3, 2019
Merged

zvol_wait script should ignore partially received zvols #9260

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23 changes: 21 additions & 2 deletions cmd/zvol_wait/zvol_wait
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Original file line number Diff line number Diff line change
Expand Up @@ -25,11 +25,30 @@ filter_out_deleted_zvols() {
}

list_zvols() {
zfs list -t volume -H -o name,volmode | while read -r zvol_line; do
zfs list -t volume -H -o name,volmode,receive_resume_token |
while read -r zvol_line; do
name=$(echo "$zvol_line" | awk '{print $1}')
volmode=$(echo "$zvol_line" | awk '{print $2}')
token=$(echo "$zvol_line" | awk '{print $3}')
#
# /dev links are not created for zvols with volmode = "none".
[ "$volmode" = "none" ] || echo "$name"
#
[ "$volmode" = "none" ] && continue
#
# We also also ignore partially received zvols if it is
# not an incremental receive, as those won't even have a block
# device minor node created yet.
#
if [ "$token" != "-" ]; then
#
# Incremental receives create an invisible clone that
# is not automatically displayed by zfs list.
#
if ! zfs list "$name/%recv" >/dev/null 2>&1; then
continue
fi
fi
echo "$name"
done
}

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