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btrfs-progs: Use sparse files for filesystem conversion tests 

On my system, this brings the FS conversion test suite's runtime from over
ten seconds down to under two.

Thanks to Julien Muchembled for the suggestion.

Signed-off-by: Adam Buchbinder <abuchbinder@google.com>
Signed-off-by: David Sterba <dsterba@suse.cz>
This commit is contained in:
Adam Buchbinder 2014-06-12 09:08:33 -07:00 committed by David Sterba
parent 978542ff59
commit 4156fadc53
1 changed files with 10 additions and 8 deletions
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18
tests/convert-tests.sh
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@ -13,15 +13,16 @@ _fail()
}
rm -f convert-tests-results.txt
rm -f test.img
test(){
echo " [TEST] $1"
shift
echo "creating ext image with: $*" >> convert-tests-results.txt
shift
echo "creating ext image with: $*" >> convert-tests-results.txt
# 256MB is the smallest acceptable btrfs image.
dd if=/dev/zero of=$here/test.img bs=1024 count=$((256*1024)) \
>> convert-tests-results.txt 2>&1 || _fail "dd failed"
rm -f $here/test.img >> convert-tests-results.txt 2>&1 \
|| _fail "could not remove test image file"
truncate -s 256M $here/test.img >> convert-tests-results.txt 2>&1 \
|| _fail "could not create test image file"
$* -F $here/test.img >> convert-tests-results.txt 2>&1 \
|| _fail "filesystem create failed"
$here/btrfs-convert $here/test.img >> convert-tests-results.txt 2>&1 \
@ -30,6 +31,7 @@ test(){
|| _fail "btrfsck detected errors"
}
test "ext2, 4k blocksize" mke2fs -b 4096
test "ext3, 4k blocksize" mke2fs -j -b 4096
test "ext4, 4k blocksize" mke2fs -t ext4 -b 4096
# btrfs-convert requires 4k blocksize.
test "ext2" mke2fs -b 4096
test "ext3" mke2fs -j -b 4096
test "ext4" mke2fs -t ext4 -b 4096