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Btrfs-progs: add test for receive 

Add a test for a scenario that used to fail due to find_mount_root()
incorrectly determining the mount point for the receive path due to the
fact that a different mount point with a path that is a prefix of the
receive path exists.

This is fixed by a recent patch titled:

  "Btrfs-progs: fix mount point detection due to partial prefix match"

Reported-by: David Disseldorp <ddiss@suse.com>
Signed-off-by: Filipe Manana <fdmanana@suse.com>
[ adjustments to make the test work when hosted on NFS ]
Signed-off-by: David Sterba <dsterba@suse.com>
master
Filipe Manana 2019-01-14 13:31:46 +00:00 committed by David Sterba
parent dc1c561250
commit ccdd01a404
1 changed files with 48 additions and 0 deletions
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48
tests/misc-tests/035-receive-common-mount-point-prefix/test.sh 100755
View File

@ -0,0 +1,48 @@
#!/bin/bash
# Test that receive determines the correct mount point path when there is
# another mount point that matches the destination's path as a prefix.
source "$TEST_TOP/common"
check_prereq btrfs
check_prereq mkfs.btrfs
setup_root_helper
rm -f dev1 dev2
run_check truncate -s 1G dev1
run_check truncate -s 1G dev2
chmod a+w dev1 dev2
loop1=$(run_check_stdout $SUDO_HELPER losetup --find --show dev1)
loop2=$(run_check_stdout $SUDO_HELPER losetup --find --show dev2)
run_check $SUDO_HELPER "$TOP/mkfs.btrfs" -f "$loop1"
run_check $SUDO_HELPER "$TOP/mkfs.btrfs" -f "$loop2"
run_check $SUDO_HELPER mount "$loop1" "$TEST_MNT"
run_check $SUDO_HELPER mkdir "$TEST_MNT/ddis"
run_check $SUDO_HELPER mkdir "$TEST_MNT/ddis-not-a-mount"
run_check $SUDO_HELPER mount "$loop2" "$TEST_MNT/ddis"
echo "some data" | $SUDO_HELPER tee "$TEST_MNT/ddis/file" > /dev/null
run_check $SUDO_HELPER "$TOP/btrfs" subvolume snapshot -r \
"$TEST_MNT/ddis" "$TEST_MNT/ddis/snap"
run_check truncate -s 0 send.data
chmod a+w send.data
run_check $SUDO_HELPER "$TOP/btrfs" send -f send.data "$TEST_MNT/ddis/snap"
# The following receive used to fail because it incorrectly determined the mount
# point of the destination path to be $TEST_MNT/ddis and not $TEST_MNT.
run_check $SUDO_HELPER "$TOP/btrfs" receive -f send.data \
"$TEST_MNT/ddis-not-a-mount"
run_check $SUDO_HELPER umount "$TEST_MNT/ddis"
run_check $SUDO_HELPER umount "$TEST_MNT"
# Cleanup loop devices and send data.
run_check $SUDO_HELPER losetup -d "$loop1"
run_check $SUDO_HELPER losetup -d "$loop2"
rm -f dev1 dev2 send.data