So df in btrfs is tricky at best, and relying on it for accurate information is
not great, but it's the best way to verify this test. To get around btrfs being
inconsistent sometimes just use _within_tolerance to check our new df value to
make sure that our truncate did something. With this patch I no longer see
transient failures of this test. Thanks,
Signed-off-by: Josef Bacik <jbacik@xxxxxxxxxxxx>
---
tests/generic/315 | 3 ++-
1 files changed, 2 insertions(+), 1 deletions(-)
diff --git a/tests/generic/315 b/tests/generic/315
index 7cfc40d..9c01b5e 100644
--- a/tests/generic/315
+++ b/tests/generic/315
@@ -73,7 +73,8 @@ sync
# Preallocated disk space should be released
avail_done=`df -P $TEST_DIR | awk 'END {print $4}'`
-[ "$avail_done" -eq "$avail_begin" ] || _fail "Available disk space ($avail_done KiB)"
+_within_tolerance "df" $avail_done $avail_begin 1%
+[ $? -eq 0 ] || _fail "Available disk space ($avail_done KiB) wanted ($avail_begin KiB)"
# success, all done
exit
--
1.7.7.6
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