From: Sun Ke <sunke32@huawei.com>
Date: Wed, 30 Jun 2021 11:37:35 +0000 (+0800)
Subject: generic/103: special left calculation for f2fs
X-Git-Tag: v2022.05.01~354
X-Git-Url: http://git.apps.os.sepia.ceph.com/?p=xfstests-dev.git;a=commitdiff_plain;h=9e31513f5fbd03a997b43197bbe594ae9a1da103

generic/103: special left calculation for f2fs

It failed on f2fs:
      QA output created by 103
     +fallocate: No space left on device
      Silence is golden.
     ...

f2fs uses index(radix) tree as mapping metadata, its space overhead
is about one thousandth of the data.

Suggested-by: Chao Yu <yuchao0@huawei.com>
Signed-off-by: Sun Ke <sunke32@huawei.com>
Reviewed-by: Chao Yu <chao@kernel.org>
Signed-off-by: Eryu Guan <guaneryu@gmail.com>
---

diff --git a/tests/generic/103 b/tests/generic/103
index 795f851d..4efa1dc3 100755
--- a/tests/generic/103
+++ b/tests/generic/103
@@ -27,10 +27,18 @@ _require_xfs_io_command "falloc"
 _consume_freesp()
 {
 	file=$1
+	left=512
 
 	# consume nearly all available space (leave ~512kB)
 	avail=`_get_available_space $SCRATCH_MNT`
-	filesizekb=$((avail / 1024 - 512))
+
+	# f2fs uses index(radix) tree as mapping metadata, its space overhead
+	# is about one thousandth of the data
+	if [ $FSTYP == "f2fs" ]; then
+		left=$((left + avail / 1024000))
+	fi
+
+	filesizekb=$((avail / 1024 - $left))
 	$XFS_IO_PROG -fc "falloc 0 ${filesizekb}k" $file
 }