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#! /bin/bash
# SPDX-License-Identifier: GPL-2.0
# Copyright (c) 2014 Filipe Manana. All Rights Reserved.
#
# FS QA Test No. btrfs/043
#
# Regression test for btrfs incremental send issue where a rmdir instruction
# is sent against an orphan directory inode which is not empty yet, causing
# btrfs receive to fail when it attempts to remove the directory.
#
# This issue is fixed by the following linux kernel btrfs patch:
#
# Btrfs: fix send attempting to rmdir non-empty directories
#
. ./common/preamble
_begin_fstest auto quick send
tmp=`mktemp -d`
# Override the default cleanup function.
_cleanup()
{
rm -fr $tmp
}
. ./common/filter
_supported_fs btrfs
_require_scratch
_require_fssum
_scratch_mkfs >/dev/null 2>&1
_scratch_mount
mkdir -p $SCRATCH_MNT/a/b
mkdir $SCRATCH_MNT/0
mkdir $SCRATCH_MNT/1
mkdir $SCRATCH_MNT/a/b/c
mv $SCRATCH_MNT/0 $SCRATCH_MNT/a/b/c
mv $SCRATCH_MNT/1 $SCRATCH_MNT/a/b/c
echo 'ola mundo' > $SCRATCH_MNT/a/b/c/foo.txt
mkdir $SCRATCH_MNT/a/b/c/x
mkdir $SCRATCH_MNT/a/b/c/x2
mkdir $SCRATCH_MNT/a/b/y
mkdir $SCRATCH_MNT/a/b/z
mkdir -p $SCRATCH_MNT/a/b/d1/d2/d3
mkdir $SCRATCH_MNT/a/b/d4
# Filesystem looks like:
#
# . (ino 256)
# |-- a/ (ino 257)
# |-- b/ (ino 258)
# |-- c/ (ino 261)
# | |-- foo.txt (ino 262)
# | |-- 0/ (ino 259)
# | |-- 1/ (ino 260)
# | |-- x/ (ino 263)
# | |-- x2/ (ino 264)
# |
# |-- y/ (ino 265)
# |-- z/ (ino 266)
# |-- d1/ (ino 267)
# | |-- d2/ (ino 268)
# | |-- d3/ (ino 269)
# |
# |-- d4/ (ino 270)
_btrfs subvolume snapshot -r $SCRATCH_MNT $SCRATCH_MNT/mysnap1
rm -f $SCRATCH_MNT/a/b/c/foo.txt
mv $SCRATCH_MNT/a/b/y $SCRATCH_MNT/a/b/YY
mv $SCRATCH_MNT/a/b/z $SCRATCH_MNT/a
mv $SCRATCH_MNT/a/b/c/x $SCRATCH_MNT/a/b/YY
mv $SCRATCH_MNT/a/b/c/0 $SCRATCH_MNT/a/b/YY/00
mv $SCRATCH_MNT/a/b/c/x2 $SCRATCH_MNT/a/z/X_2
mv $SCRATCH_MNT/a/b/c/1 $SCRATCH_MNT/a/z/X_2
rmdir $SCRATCH_MNT/a/b/c
mv $SCRATCH_MNT/a/b/d4 $SCRATCH_MNT/a/d44
mv $SCRATCH_MNT/a/b/d1/d2 $SCRATCH_MNT/a/d44
rmdir $SCRATCH_MNT/a/b/d1
# Filesystem now looks like:
#
# . (ino 256)
# |-- a/ (ino 257)
# |-- b/ (ino 258)
# | |-- YY/ (ino 265)
# | |-- x/ (ino 263)
# | |-- 00/ (ino 259)
# |
# |-- z/ (ino 266)
# | |-- X_2/ (ino 264)
# | |-- 1/ (ino 260)
# |
# |-- d44/ (ino 270)
# |-- d2/ (ino 268)
# |-- d3/ (ino 269)
_btrfs subvolume snapshot -r $SCRATCH_MNT $SCRATCH_MNT/mysnap2
run_check $FSSUM_PROG -A -f -w $tmp/1.fssum $SCRATCH_MNT/mysnap1
run_check $FSSUM_PROG -A -f -w $tmp/2.fssum -x $SCRATCH_MNT/mysnap2/mysnap1 \
$SCRATCH_MNT/mysnap2
_btrfs send -f $tmp/1.snap $SCRATCH_MNT/mysnap1
_btrfs send -p $SCRATCH_MNT/mysnap1 -f $tmp/2.snap \
$SCRATCH_MNT/mysnap2
_check_scratch_fs
_scratch_unmount
_scratch_mkfs >/dev/null 2>&1
_scratch_mount
_btrfs receive -f $tmp/1.snap $SCRATCH_MNT
run_check $FSSUM_PROG -r $tmp/1.fssum $SCRATCH_MNT/mysnap1
_btrfs receive -f $tmp/2.snap $SCRATCH_MNT
run_check $FSSUM_PROG -r $tmp/2.fssum $SCRATCH_MNT/mysnap2
status=0
exit
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