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generic: make 17[1-4] work well when btrfs compression is enabled

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When enabling btrfs compression, original codes can not fill fs
correctly, here we introduce _fill_fs() in common/rc, which'll keep
creating and writing files until enospc error occurs. Note _fill_fs
is copied from tests/generic/256, but with some minor modifications.

Signed-off-by: Wang Xiaoguang <wangxg.fnst@cn.fujitsu.com>
Reviewed-by: Eryu Guan <eguan@redhat.com>
Signed-off-by: Eryu Guan <eguan@redhat.com>
This commit is contained in:
Wang Xiaoguang
2016-11-02 12:07:27 +08:00
committed by Eryu Guan
parent f613638308
commit 815015e9ee
6 changed files with 82 additions and 68 deletions
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tests/generic/256
+6 -60
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@@ -39,6 +39,7 @@ trap "_cleanup ; exit \$status" 0 1 2 3 15
# get standard environment, filters and checks
. ./common/rc
. ./common/populate
. ./common/filter
. ./common/punch
@@ -53,64 +54,6 @@ _require_test
testfile=$TEST_DIR/256.$$
# _fill_fs()
#
# Fills a file system by repeatedly creating files in the given folder
# starting with the given file size. Files are reduced in size when
# they can no longer fit untill no more files can be created.
#
# This routine is used by _test_full_fs_punch to test that a hole may
# still be punched when the disk is full by borrowing reserved blocks.
# All files are created as a non root user to prevent reserved blocks
# from being consumed.
#
_fill_fs() {
local file_size=$1
local dir=$2
local block_size=$3
local file_count=1
local bytes_written=0
if [ $# -ne 3 ]
then
echo "USAGE: _fill_fs filesize dir block size"
exit 1
fi
# Creation of files or folders
# must not be done as root or
# reserved blocks will be consumed
_user_do "mkdir -p $dir &> /dev/null"
if [ $? -ne 0 ] ; then
return 0
fi
if [ $file_size -lt $block_size ]
then
$file_size = $block_size
fi
while [ $file_size -ge $block_size ]
do
bytes_written=0
_user_do "$XFS_IO_PROG -f -c \"pwrite 0 $file_size\" $dir/$file_count.bin &> /dev/null"
if [ -f $dir/$file_count.bin ]
then
bytes_written=`$XFS_IO_PROG -c "stat" $dir/$file_count.bin | grep stat.size | cut -d ' ' -f3`
fi
# If there was no room to make the file,
# then divide it in half, and keep going
if [ $bytes_written -lt $file_size ]
then
file_size=$(( $file_size / 2 ))
fi
file_count=$(( $file_count + 1 ))
done
}
# _test_full_fs_punch()
#
# This function will test that a hole may be punched
@@ -144,7 +87,10 @@ _test_full_fs_punch()
-c "fsync" $file_name &> /dev/null
chmod 666 $file_name
_fill_fs $(( 1024 * 1024 * 1024 )) $path/fill $block_size
# All files are created as a non root user to prevent reserved blocks
# from being consumed.
_fill_fs $(( 1024 * 1024 * 1024 )) $path/fill $block_size 1 \
> /dev/null 2>&1
for (( i=0; i<$iterations; i++ ))
do
@@ -159,7 +105,7 @@ _test_full_fs_punch()
hole_offset=$(( $hole_offset + $hole_len + $hole_interval ))
_fill_fs $hole_len $path/fill.$i $block_size
_fill_fs $hole_len $path/fill.$i $block_size 1 > /dev/null 2>&1
done
}