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https://github.com/linux-apfs/apfstests.git
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Darrick J. Wong
a860a167d8
fstests only supports Linux, so get rid of this unnecessary predicate. Signed-off-by: Darrick J. Wong <darrick.wong@oracle.com> Reviewed-by: Christoph Hellwig <hch@lst.de> Signed-off-by: Eryu Guan <guaneryu@gmail.com>
111 lines
3.6 KiB
Bash
Executable File
111 lines
3.6 KiB
Bash
Executable File
#! /bin/bash
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# SPDX-License-Identifier: GPL-2.0
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# Copyright (C) 2017 Synology Inc. All Rights Reserved.
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#
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# FS QA Test No. btrfs/133
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#
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# Test that an incremental send operation does not fail when a new inode
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# replaces an old inode that has the same number but different generation,
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# and both are direct children of the subvolume/snapshot root.
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#
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seq=`basename $0`
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seqres=$RESULT_DIR/$seq
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echo "QA output created by $seq"
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tmp=/tmp/$$
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status=1 # failure is the default!
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trap "_cleanup; exit \$status" 0 1 2 3 15
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_cleanup()
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{
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cd /
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rm -fr $send_files_dir
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rm -f $tmp.*
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}
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# get standard environment, filters and checks
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. ./common/rc
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. ./common/filter
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# real QA test starts here
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_supported_fs btrfs
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_require_test
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_require_scratch
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_require_fssum
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send_files_dir=$TEST_DIR/btrfs-test-$seq
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rm -f $seqres.full
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rm -fr $send_files_dir
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mkdir $send_files_dir
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_scratch_mkfs >>$seqres.full 2>&1
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_scratch_mount
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mkdir $SCRATCH_MNT/a1
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mkdir $SCRATCH_MNT/a2
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# Filesystem looks like:
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#
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# . (ino 256)
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# |--- a1/ (ino 257)
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# |--- a2/ (ino 258)
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#
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$BTRFS_UTIL_PROG subvolume snapshot -r $SCRATCH_MNT \
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$SCRATCH_MNT/mysnap1 > /dev/null
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$BTRFS_UTIL_PROG send -f $send_files_dir/1.snap \
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$SCRATCH_MNT/mysnap1 2>&1 1>/dev/null | _filter_scratch
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_scratch_unmount
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_scratch_mkfs >>$seqres.full 2>&1
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_scratch_mount
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touch $SCRATCH_MNT/a2
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# Filesystem now looks like:
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#
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# . (ino 256)
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# |--- a2 (ino 257)
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#
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# Notice that at this point inode 257 has a generation with value 7, which is
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# the generation value for a brand new filesystem.
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# Now create the second snapshot. This makes the filesystem's current generation
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# value to increase to the value 8, due to a transaction commit performed by the
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# snapshot creation ioctl.
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$BTRFS_UTIL_PROG subvolume snapshot -r $SCRATCH_MNT \
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$SCRATCH_MNT/mysnap2 > /dev/null
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# Now receive the first snapshot created in the first filesystem.
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# Before creating any inodes, the receive command creates the first snapshot,
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# which causes a transaction commit and therefore bumps the filesystem's current
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# generation to the value 9. All the inodes created end up getting a generation
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# value of 9 and the snapshot's root inode (256) gets a generation value of 8.
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$BTRFS_UTIL_PROG receive -f $send_files_dir/1.snap $SCRATCH_MNT > /dev/null
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rm $send_files_dir/1.snap
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$FSSUM_PROG -A -f -w $send_files_dir/1.fssum $SCRATCH_MNT/mysnap1
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$FSSUM_PROG -A -f -w $send_files_dir/2.fssum $SCRATCH_MNT/mysnap2
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$BTRFS_UTIL_PROG send -f $send_files_dir/1.snap \
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$SCRATCH_MNT/mysnap1 2>&1 1>/dev/null | _filter_scratch
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$BTRFS_UTIL_PROG send -p $SCRATCH_MNT/mysnap1 -f $send_files_dir/2.snap \
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$SCRATCH_MNT/mysnap2 2>&1 1>/dev/null | _filter_scratch
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# Now recreate the filesystem by receiving both send streams and verify we get
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# the same content that the original filesystem had.
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# The receive for the second snapshot used to fail because the send stream had
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# an operation to rename the new inode 257 (generation 7) from its orphan name
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# to its final name (a2) before the operation to delete (rmdir) the inode 258.
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_scratch_unmount
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_scratch_mkfs >>$seqres.full 2>&1
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_scratch_mount
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$BTRFS_UTIL_PROG receive -f $send_files_dir/1.snap $SCRATCH_MNT > /dev/null
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$FSSUM_PROG -r $send_files_dir/1.fssum $SCRATCH_MNT/mysnap1
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$BTRFS_UTIL_PROG receive -f $send_files_dir/2.snap $SCRATCH_MNT > /dev/null
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$FSSUM_PROG -r $send_files_dir/2.fssum $SCRATCH_MNT/mysnap2
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status=0
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exit
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