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From 122da496446405e60a6eb5b037af263b5fd14378 Mon Sep 17 00:00:00 2001
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From: Kairui Song <kasong@redhat.com>
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Date: Mon, 15 Feb 2021 23:05:08 +0800
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Subject: [PATCH] refactor(squash): don't record mount points in text file
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The squasn mount points are recorded in text file so later clean up
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script can umount them, this is not needed, the mount points are fixed
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so just detect the umount by hardcoded pattern.
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(cherry picked from commit bdd194bb8c0427921b87b4dce16c05e18e0c2fb0)
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Resolves: #1959336
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---
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modules.d/99squash/clear-squash.sh | 10 +++++-----
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modules.d/99squash/init-squash.sh | 8 --------
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2 files changed, 5 insertions(+), 13 deletions(-)
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diff --git a/modules.d/99squash/clear-squash.sh b/modules.d/99squash/clear-squash.sh
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index 1d626f98..4f357817 100755
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--- a/modules.d/99squash/clear-squash.sh
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+++ b/modules.d/99squash/clear-squash.sh
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@@ -1,6 +1,6 @@
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#!/bin/bash
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-SQUASH_MNT_REC=/squash/mounts
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-
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-mapfile -t SQUASH_MNTS < $SQUASH_MNT_REC
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-
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-umount --lazy -- "${SQUASH_MNTS[@]}"
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+mnt="/squash/root"
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+for dir in jsquash/root/*; do
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+ mnt="$mnt ${dir#$SQUASH_MNT}"
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+done
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+umount --lazy -- $mnt
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diff --git a/modules.d/99squash/init-squash.sh b/modules.d/99squash/init-squash.sh
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index ecb6cc58..fee0105e 100755
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--- a/modules.d/99squash/init-squash.sh
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+++ b/modules.d/99squash/init-squash.sh
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@@ -3,9 +3,6 @@ PATH=/bin:/sbin
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SQUASH_IMG=/squash/root.img
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SQUASH_MNT=/squash/root
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-SQUASH_MNT_REC=/squash/mounts
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-
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-echo $SQUASH_MNT > $SQUASH_MNT_REC
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# Following mount points are neccessary for mounting a squash image
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@@ -34,9 +31,6 @@ if [ $? != 0 ]; then
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echo "Unable to setup overlay module"
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fi
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-# These modules are no longer needed, delete to save memory
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-rm -rf /usr/lib/modules/
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-
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[ ! -d "$SQUASH_MNT" ] && \
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mkdir -m 0755 -p $SQUASH_MNT
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@@ -59,8 +53,6 @@ for file in $SQUASH_MNT/*; do
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mount -t overlay overlay -o\
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lowerdir=$lowerdir,upperdir=$upperdir,workdir=$workdir $mntdir
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-
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- echo $mntdir >> $SQUASH_MNT_REC
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done
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exec /init.orig
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