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From: Sun Ke <sunke32@huawei.com>
To: <fstests@vger.kernel.org>,
	<linux-f2fs-devel@lists.sourceforge.net>, <guan@eryu.me>,
	<chao@kernel.org>
Cc: <sunke32@huawei.com>
Subject: [PATCH v2] generic/103: special left calculation for f2fs
Date: Thu, 17 Jun 2021 15:03:09 +0800	[thread overview]
Message-ID: <20210617070310.3515665-1-sunke32@huawei.com> (raw)

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>
---
 tests/generic/103 | 10 +++++++++-
 1 file changed, 9 insertions(+), 1 deletion(-)

diff --git a/tests/generic/103 b/tests/generic/103
index b22b0159..cf610047 100755
--- a/tests/generic/103
+++ b/tests/generic/103
@@ -40,10 +40,18 @@ rm -f $seqres.full
 _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
 }
 
-- 
2.13.6


WARNING: multiple messages have this Message-ID (diff)
From: Sun Ke <sunke32@huawei.com>
To: <fstests@vger.kernel.org>,
	<linux-f2fs-devel@lists.sourceforge.net>, <guan@eryu.me>,
	<chao@kernel.org>
Cc: sunke32@huawei.com
Subject: [f2fs-dev] [PATCH v2] generic/103: special left calculation for f2fs
Date: Thu, 17 Jun 2021 15:03:09 +0800	[thread overview]
Message-ID: <20210617070310.3515665-1-sunke32@huawei.com> (raw)

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>
---
 tests/generic/103 | 10 +++++++++-
 1 file changed, 9 insertions(+), 1 deletion(-)

diff --git a/tests/generic/103 b/tests/generic/103
index b22b0159..cf610047 100755
--- a/tests/generic/103
+++ b/tests/generic/103
@@ -40,10 +40,18 @@ rm -f $seqres.full
 _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
 }
 
-- 
2.13.6



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             reply	other threads:[~2021-06-17  6:57 UTC|newest]

Thread overview: 4+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2021-06-17  7:03 Sun Ke [this message]
2021-06-17  7:03 ` [f2fs-dev] [PATCH v2] generic/103: special left calculation for f2fs Sun Ke
2021-06-17  7:03 ` [PATCH v2] generic/260: f2fs is also special Sun Ke
2021-06-17  7:03   ` [f2fs-dev] " Sun Ke

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