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btrfs-progs: Use sparse files for filesystem conversion tests

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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 convert-tests-results.txt
rm -f test.img
test(){ test(){
echo " [TEST] $1" echo " [TEST] $1"
shift shift
echo "creating ext image with: $*" >> convert-tests-results.txt echo "creating ext image with: $*" >> convert-tests-results.txt
# 256MB is the smallest acceptable btrfs image. # 256MB is the smallest acceptable btrfs image.
dd if=/dev/zero of=$here/test.img bs=1024 count=$((256*1024)) \ rm -f $here/test.img >> convert-tests-results.txt 2>&1 \
>> convert-tests-results.txt 2>&1 || _fail "dd failed" || _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 \ $* -F $here/test.img >> convert-tests-results.txt 2>&1 \
|| _fail "filesystem create failed" || _fail "filesystem create failed"
$here/btrfs-convert $here/test.img >> convert-tests-results.txt 2>&1 \ $here/btrfs-convert $here/test.img >> convert-tests-results.txt 2>&1 \
@ -30,6 +31,7 @@ test(){
|| _fail "btrfsck detected errors" || _fail "btrfsck detected errors"
} }
test "ext2, 4k blocksize" mke2fs -b 4096 # btrfs-convert requires 4k blocksize.
test "ext3, 4k blocksize" mke2fs -j -b 4096 test "ext2" mke2fs -b 4096
test "ext4, 4k blocksize" mke2fs -t ext4 -b 4096 test "ext3" mke2fs -j -b 4096
test "ext4" mke2fs -t ext4 -b 4096