mirror of
https://github.com/linux-apfs/apfstests.git
synced 2026-05-01 15:01:44 -07:00
Josef Bacik
99c495a308
Btrfs has always failed shared/218 because of the way we allocate extents on disk. The last part of 218 writes contiguously holey from the start of the file forward, which for btrfs means we get 16 extents but they are physically contigous. filefrag -v shows all 16 extents, but prints out that there is 1 extent, because they are physically contiguous. This isn't quite right and makes the test fail. So instead of using filefrag use xfs_io -c fiemap which will print the whole map and then get the count from there. With this patch btrfs now passes the test, I also verified that ext4 and xfs still pass this test. Thanks, Signed-off-by: Josef Bacik <jbacik@fusionio.com> Reviewed-by: Dave Chinner <dchinner@redhat.com> Signed-off-by: Ben Myers <bpm@sgi.com>
72 lines
1.8 KiB
Plaintext
72 lines
1.8 KiB
Plaintext
##/bin/bash
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#
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# Copyright (c) 2009 Eric Sandeen
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# All Rights Reserved.
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#
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# This program is free software; you can redistribute it and/or
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# modify it under the terms of the GNU General Public License as
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# published by the Free Software Foundation.
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#
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# This program is distributed in the hope that it would be useful,
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# but WITHOUT ANY WARRANTY; without even the implied warranty of
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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# GNU General Public License for more details.
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#
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# You should have received a copy of the GNU General Public License
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# along with this program; if not, write the Free Software Foundation,
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# Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
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#
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#
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# Functions useful for defragmentation tests
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#
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_require_defrag()
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{
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case "$FSTYP" in
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xfs)
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DEFRAG_PROG="$XFS_FSR_PROG"
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;;
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ext4|ext4dev)
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DEFRAG_PROG="$E4DEFRAG_PROG"
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;;
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btrfs)
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DEFRAG_PROG="$BTRFS_UTIL_PROG filesystem defragment"
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;;
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*)
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_notrun "defragmentation not supported for fstype \"$FSTYP\""
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;;
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esac
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_require_command $DEFRAG_PROG
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_require_xfs_io_fiemap
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}
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_extent_count()
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{
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$XFS_IO_PROG -c "fiemap" $1 | tail -n +2 | grep -v hole | wc -l
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$XFS_IO_PROG -c "fiemap" $1 >> $seqres.full 2>&1
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}
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# Defrag file, check it, and remove it.
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_defrag()
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{
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echo -n "Before: "
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_extent_count $1
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CSUM_BEFORE=`md5sum $1`
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STAT_BEFORE=`stat -c "a: %x m: %y c: %z" $1`
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$DEFRAG_PROG -v $1 >> $seqres.full 2>&1
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_scratch_remount
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STAT_AFTER=`stat -c "a: %x m: %y c: %z" $1`
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CSUM_AFTER=`md5sum $1`
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echo -n "After: "
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_extent_count $1
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if [ "$CSUM_BEFORE" != "$CSUM_AFTER" ]; then
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_fail "file checksum changed post-defrag ($CSUM_BEFORE/$CSUM_AFTER)"
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fi
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if [ "$STAT_BEFORE" != "$STAT_AFTER" ]; then
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_fail "file timestamps changed post-defrag:\n$STAT_BEFORE\n$STAT_AFTER"
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fi
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rm -f $1
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}
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