mirror of
https://github.com/linux-apfs/apfstests.git
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Dave Chinner
1ff4192932
Fully scripted conversion, see script in initial SPDX license commit message. Signed-off-by: Dave Chinner <dchinner@redhat.com>
248 lines
11 KiB
Bash
Executable File
248 lines
11 KiB
Bash
Executable File
#! /bin/bash
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# SPDX-License-Identifier: GPL-2.0
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# Copyright (C) 2016 SUSE Linux Products GmbH. All Rights Reserved.
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#
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# FS QA Test No. btrfs/127
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#
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# Test that an incremental send operation works after doing radical changes
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# in the directory hierarchy that involve switching the inode that directory
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# entries point to.
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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 $tmp.*
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}
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# get standard environment, filters and checks
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. ./common/rc
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. ./common/filter
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# real QA test starts here
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_supported_fs btrfs
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_supported_os Linux
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_require_test
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_require_scratch
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_require_fssum
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send_files_dir=$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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# case 1
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mkdir -p $SCRATCH_MNT/case_1/d/p1
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mkdir $SCRATCH_MNT/case_1/p1
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# case 2
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mkdir -p $SCRATCH_MNT/case_2/a
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mkdir $SCRATCH_MNT/case_2/d
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mkdir $SCRATCH_MNT/case_2/e
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mkdir $SCRATCH_MNT/case_2/f
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mkdir $SCRATCH_MNT/case_2/ance
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mkdir $SCRATCH_MNT/case_2/d/ance
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mkdir $SCRATCH_MNT/case_2/a/c
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mv $SCRATCH_MNT/case_2/e $SCRATCH_MNT/case_2/d/ance
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mv $SCRATCH_MNT/case_2/f $SCRATCH_MNT/case_2/d/ance
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mv $SCRATCH_MNT/case_2/ance $SCRATCH_MNT/case_2/d/ance
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# case 3
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mkdir -p $SCRATCH_MNT/case_3/d
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mkdir $SCRATCH_MNT/case_3/a
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mkdir $SCRATCH_MNT/case_3/waiting_dir
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mkdir -p $SCRATCH_MNT/case_3/pre/ance
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mkdir $SCRATCH_MNT/case_3/d/ance
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mkdir $SCRATCH_MNT/case_3/a/c
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mv $SCRATCH_MNT/case_3/waiting_dir $SCRATCH_MNT/case_3/d/ance
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# case 4
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mkdir -p $SCRATCH_MNT/case_4/tmp
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mkdir $SCRATCH_MNT/case_4/below_ance
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mkdir -p $SCRATCH_MNT/case_4/pre/wait_dir
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mkdir $SCRATCH_MNT/case_4/desc
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mkdir $SCRATCH_MNT/case_4/ance
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mv $SCRATCH_MNT/case_4/below_ance $SCRATCH_MNT/case_4/ance
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mkdir $SCRATCH_MNT/case_4/other_dir
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# Filesystem looks like:
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#
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# . (ino 256)
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# |--- case_1/ (ino 257)
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# | |---- d/ (ino 258)
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# | | |--- p1/ (ino 259)
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# | |
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# | |---- p1/ (ino 260)
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# |
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# |--- case_2/ (ino 261)
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# | |---- a/ (ino 262)
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# | | |---- c/ (ino 268)
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# | |
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# | |---- d/ (ino 263)
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# | |---- ance/ (ino 267)
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# | |---- e/ (ino 264)
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# | |---- f/ (ino 265)
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# | |---- ance/ (ino 266)
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# |
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# |--- case_3/ (ino 269)
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# | |---- a/ (ino 271)
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# | | |---- c/ (ino 276)
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# | |
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# | |---- d/ (ino 270)
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# | | |---- ance/ (ino 275)
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# | | |---- waiting_dir/ (ino 272)
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# | |
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# | |---- pre/ (ino 273)
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# | |---- ance/ (ino 274)
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# |
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# |--- case_4/ (ino 277)
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# |---- tmp/ (ino 278)
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# |---- pre/ (ino 280)
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# | |---- wait_dir/ (ino 281)
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# |
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# |---- desc/ (ino 282)
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# |---- ance/ (ino 283)
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# | |---- below_ance/ (ino 279)
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# |
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# |---- other_dir/ (ino 284)
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#
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_run_btrfs_util_prog subvolume snapshot -r $SCRATCH_MNT $SCRATCH_MNT/mysnap1
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# case 1
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#
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# The directory named "d" (inode 257) has in both snapshots an entry with the
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# name "p1" but it refers to different inodes in both snapshots (inode 258 in
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# the parent snapshot and inode 259 in the send snapshot). When attempting to
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# move inode 258, the operation is delayed because its new parent, inode 259,
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# was not yet moved/renamed (as the stream is currently processing inode 258).
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# Later on when processing inode 259, btrfs' send also ended up delaying the
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# move/rename operation for this inode, so that it would happen after inode 258
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# was processed, creating a circular dependency that resulted in the send stream
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# terminating without issuing a rename operations for the inodes 258 and 259.
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#
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mv $SCRATCH_MNT/case_1/d/p1 $SCRATCH_MNT/case_1/p1
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mv $SCRATCH_MNT/case_1/p1 $SCRATCH_MNT/case_1/d
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# case 2
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#
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# When the inode 265 is processed, the path for inode 267 is computed, which at
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# that time corresponds to "case_2/d/ance", and it was stored in the name cache
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# (to avoid recomputing it again later when needed).
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# Later on when processing inode 266, btrfs' send end up orphanizing (renaming
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# to a name matching the pattern o<ino>-<gen>-<seq>) inode 267 because it has
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# the same name as inode 266 and at that time it's a child of the new parent
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# directory (inode 263) for inode 266. After the orphanization and while still
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# processing inode 266, a rename operation for inode 266 was generated. However
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# the source path for that rename operation was incorrect because it ended up
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# using the old, pre-orphanization, name of inode 267.
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#
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mv $SCRATCH_MNT/case_2/a/c $SCRATCH_MNT/case_2
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mv $SCRATCH_MNT/case_2/d/ance $SCRATCH_MNT/case_2/c
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mv $SCRATCH_MNT/case_2/c/ance/ance $SCRATCH_MNT/case_2/d
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mv $SCRATCH_MNT/case_2/c/ance/f $SCRATCH_MNT/case_2
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mv $SCRATCH_MNT/case_2/c/ance/e $SCRATCH_MNT/case_2/f
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# case 3
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#
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# This is similar to cases 1 and 2, but adding more complexity just to exercise
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# btrfs' incremental send correctness.
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#
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mv $SCRATCH_MNT/case_3/d/ance $SCRATCH_MNT/case_3/a
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mv $SCRATCH_MNT/case_3/a/c $SCRATCH_MNT/case_3
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mv $SCRATCH_MNT/case_3/a/ance/waiting_dir $SCRATCH_MNT/case_3/c
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mv $SCRATCH_MNT/case_3/pre/ance $SCRATCH_MNT/case_3/d
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mv $SCRATCH_MNT/case_3/pre $SCRATCH_MNT/case_3/c/waiting_dir
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# case 4
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#
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# When attempting to rename inode 283, the incremental send stream included an
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# invalid destination path for the rename command. This was due to a missing
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# path loop detection in the send code that made the rename of inode 283 happen
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# without waiting for the rename of inode 284 to happen first (since it's an
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# ancestor in the send snapshot that is beyond the current progress and it was
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# also renamed/moved).
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#
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mv $SCRATCH_MNT/case_4/other_dir $SCRATCH_MNT/case_4/tmp
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mv $SCRATCH_MNT/case_4/ance/below_ance $SCRATCH_MNT/case_4/tmp/other_dir
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mv $SCRATCH_MNT/case_4/pre/wait_dir $SCRATCH_MNT/case_4/tmp/other_dir
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mv $SCRATCH_MNT/case_4/pre $SCRATCH_MNT/case_4/tmp/other_dir/below_ance
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mv $SCRATCH_MNT/case_4/desc $SCRATCH_MNT/case_4/tmp/other_dir/wait_dir
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mv $SCRATCH_MNT/case_4/ance $SCRATCH_MNT/case_4/tmp/other_dir/wait_dir/desc
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# Filesystem now looks like:
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#
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# . (ino 256)
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# |--- case_1/ (ino 257)
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# | |--- d/ (ino 258)
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# | |--- p1/ (ino 260)
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# | |--- p1/ (ino 259)
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# |
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# |--- case_2/ (ino 261)
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# | |---- a/ (ino 262)
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# | |---- c/ (ino 268)
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# | | |---- ance/ (ino 267)
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# | |
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# | |---- d/ (ino 263)
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# | | |---- ance/ (ino 266)
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# | |
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# | |---- f/ (ino 265)
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# | |---- e/ (ino 264)
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# |
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# |--- case_3/ (ino 269)
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# | |---- a/ (ino 271)
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# | | |---- ance/ (ino 275)
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# | |
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# | |---- c/ (ino 276)
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# | | |---- waiting_dir/ (ino 272)
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# | | |---- pre/ (ino 273)
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# | |
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# | |---- d/ (ino 270)
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# | |---- ance/ (ino 274)
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# |
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# |--- case_4/ (ino 277)
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# |---- tmp/ (ino 278)
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# |---- other_dir/ (ino 284)
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# |---- below_ance/ (ino 279)
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# | |---- pre/ (ino 280)
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# |
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# |---- wait_dir/ (ino 281)
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# |---- desc/ (ino 282)
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# |---- ance/ (ino 283)
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#
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_run_btrfs_util_prog subvolume snapshot -r $SCRATCH_MNT $SCRATCH_MNT/mysnap2
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run_check $FSSUM_PROG -A -f -w $send_files_dir/1.fssum $SCRATCH_MNT/mysnap1
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run_check $FSSUM_PROG -A -f -w $send_files_dir/2.fssum \
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-x $SCRATCH_MNT/mysnap2/mysnap1 $SCRATCH_MNT/mysnap2
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_run_btrfs_util_prog send -f $send_files_dir/1.snap $SCRATCH_MNT/mysnap1
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_run_btrfs_util_prog send -p $SCRATCH_MNT/mysnap1 -f $send_files_dir/2.snap \
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$SCRATCH_MNT/mysnap2
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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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_scratch_unmount
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_scratch_mkfs >>$seqres.full 2>&1
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_scratch_mount
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_run_btrfs_util_prog receive -f $send_files_dir/1.snap $SCRATCH_MNT
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run_check $FSSUM_PROG -r $send_files_dir/1.fssum $SCRATCH_MNT/mysnap1
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_run_btrfs_util_prog receive -f $send_files_dir/2.snap $SCRATCH_MNT
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run_check $FSSUM_PROG -r $send_files_dir/2.fssum $SCRATCH_MNT/mysnap2
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echo "Silence is golden"
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status=0
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exit
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