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xfstests 285: Fix test for ext4 in some configurations

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In some configurations (e.g. 1 KB block size), ext4 can decide it is
better to zero out several blocks rather than splitting unwritten
extent. This changes results SEEK_HOLE / SEEK_DATA returns and thus the
test fails. Fix the problem by disabling the feature for this test.

Signed-off-by: Jan Kara <jack@suse.cz>
Reviewed-by: Eric Sandeen <sandeen@redhat.com>
Signed-off-by: Rich Johnston <rjohnston@sgi.com>
This commit is contained in:
Jan Kara
2013-06-03 13:40:36 -05:00
committed by Rich Johnston
parent 3e889c6735
commit ce9d1cdd61
1 changed files with 6 additions and 0 deletions
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tests/generic/285
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@@ -46,6 +46,12 @@ BASE_TEST_FILE=$TEST_DIR/seek_sanity_testfile
[ -x $here/src/seek_sanity_test ] || _notrun "seek_sanitfy_tester not built" [ -x $here/src/seek_sanity_test ] || _notrun "seek_sanitfy_tester not built"
# Disable extent zeroing for ext4 as that change where holes are created
if [ "$FSTYP" = "ext4" ]; then
DEV=`basename $TEST_DEV`
echo 0 >/sys/fs/ext4/$DEV/extent_max_zeroout_kb
fi
_cleanup() _cleanup()
{ {
eval "rm -f $BASE_TEST_FILE.*" eval "rm -f $BASE_TEST_FILE.*"