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xfs/310: relax extent count check

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If we got over the bmbt length we'll always allocate two extents,
its just that so far getbmap merged them.

Also fix/update some comments.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Darrick J. Wong <darrick.wong@oracle.com>
Signed-off-by: Eryu Guan <eguan@redhat.com>
This commit is contained in:
Christoph Hellwig
2017-09-03 17:51:01 +02:00
committed by Eryu Guan
parent de59259298
commit b88444413a
1 changed files with 3 additions and 2 deletions
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tests/xfs/310
+3 -2
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@@ -1,7 +1,7 @@
#! /bin/bash
# FS QA Test No. 310
#
# Create a file with more than 2^21 extents (the max length of a bmbt record).
# Create a file with more than 2^21 blocks (the max length of a bmbt record).
#
#-----------------------------------------------------------------------
# Copyright (c) 2016, Oracle and/or its affiliates. All Rights Reserved.
@@ -75,8 +75,9 @@ mkdir $testdir
blksz="$(_get_block_size $testdir)"
$XFS_IO_PROG -f -c "falloc 0 $((nr_blks * blksz))" $testdir/file1 >> $seqres.full
# make sure the allocator didn't allocate more than the needed two extents
echo "Check extent count"
xfs_bmap -l -p -v $testdir/file1 | grep '^[[:space:]]*1:' -q && xfs_bmap -l -p -v $testdir/file1
xfs_bmap -l -p -v $testdir/file1 | grep '^[[:space:]]*2:' -q && xfs_bmap -l -p -v $testdir/file1
inum=$(stat -c '%i' $testdir/file1)
umount $SCRATCH_MNT