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btrfs-progs: tests: Introduce misc-tests/008-leaf-crossing-stripes
To check is btrfs-convert create bad filesystem with leaf across stripes. It is happened in progs version <=v4.1.2, and fixed by patch titled: btrfs: convert: Avoid allocating metadata extent crossing stripe boundary which was merged in v4.2. Notice thar this testcase can not report error in old version of btrfs-progs, because "btrfs check" can't check this type of error in those version, but we have another testcase in fsck-tests, to check is "btrfs check" support this check. So, the above 2 testcase together can check leaf-crossing-stripes bug in all versions. Signed-off-by: Zhao Lei <zhaolei@cn.fujitsu.com> [renamed and other minor changes] Signed-off-by: David Sterba <dsterba@suse.com>
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tests/misc-tests/008-leaf-crossing-stripes/test.sh
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tests/misc-tests/008-leaf-crossing-stripes/test.sh
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#!/bin/bash
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# test if btrfs-convert creates a filesystem without leaf crossing stripes
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source $TOP/tests/common
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check_prereq btrfs-convert
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check_prereq btrfs
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# In my test, it happened in 514M~560M, 737M~769M, 929M~917M,
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# and HAVE_ERROR=((size + 1) / 2) % 2 if size >= 970
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#
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SIZE_FROM=514
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SIZE_END=560
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A_PRIME_NUM=17
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for ((size = SIZE_FROM; size <= SIZE_END; size += A_PRIME_NUM)); do
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run_check truncate -s "$size"M "$IMAGE"
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run_check mkfs.ext4 -F "$IMAGE"
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run_check $TOP/btrfs-convert "$IMAGE"
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run_check_stdout $TOP/btrfs check "$IMAGE" 2>&1 |
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grep -q "crossing stripe boundary" &&
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_fail "leaf crossing stripes after btrfs-convert"
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done
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# grep will expectedly fail
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exit 0
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