This test is for write-posix test. If writing a file when the disk is almost
full, the posix wants the call to write as much as possible but not none.
quote the POSIX:
If a write() requests that more bytes be written than there is room for
(for example, [XSI] [Option Start] the process' file size limit or
[Option End] the physical end of a medium), only as many bytes as there
is room for shall be written. For example, suppose there is space for 20
bytes more in a file before reaching a limit. A write of 512 bytes will
return 20. The next write of a non-zero number of bytes would give a
failure return (except as noted below).
Signed-off-by: Wu Bo <Wu.Bo@xxxxxxxxxxxxxx>
---
266 | 104 +++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
266.out | 5 +++
group | 1 +
3 files changed, 110 insertions(+), 0 deletions(-)
create mode 100755 266
create mode 100644 266.out
diff --git a/266 b/266
new file mode 100755
index 0000000..6331ff8
--- /dev/null
+++ b/266
@@ -0,0 +1,104 @@
+#! /bin/bash
+# FS QA Test No. 266
+#
+# The posix write test. when write size is larger than disk free size,
+# should write as more as possible
+#
+#-----------------------------------------------------------------------
+# Copyright (c) 2011-2012 Fujitsu, Inc. All Rights Reserved.
+#
+# This program is free software; you can redistribute it and/or
+# modify it under the terms of the GNU General Public License as
+# published by the Free Software Foundation.
+#
+# This program is distributed in the hope that it would be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+# GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with this program; if not, write the Free Software Foundation,
+# Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
+#
+#-----------------------------------------------------------------------
+#
+#creator
+owner=wu.bo@xxxxxxxxxxxxxx
+
+seq=`basename $0`
+echo "QA output created by $seq"
+
+here=`pwd`
+tmp=/tmp/$$
+status=0 # success is the default!
+trap "_cleanup; exit \$status" 0 1 2 3 15
+
+_cleanup()
+{
+ rm -f $TEST_DIR/* $tmp.*
+
+ if [ $_resize -eq 1 ]
+ then
+ btrfs filesystem resize ${_old}B $TEST_DIR > /dev/null 2>&1
+ fi
+
+ _cleanup_testdir
+}
+
+. ./common.rc
+. ./common.filter
+
+# real QA test starts here
+_supported_fs btrfs
+_supported_os IRIX Linux
+
+_setup_testdir
+_check_test_fs
+
+echo "------------------------------"
+echo "write lack test"
+echo "------------------------------"
+
+_resize=0
+_new=$(( 1 * 1024 * 1024 * 1024 )) # 1G
+_old=`df --block-size=1 | grep $TEST_DEV | awk '{print $2}'`
+if [ $_new -lt $_old ]
+then
+ btrfs filesystem resize ${_new}B $TEST_DIR > /dev/null 2>&1
+ if [ $? -ne 0 ]
+ then
+ echo "btrfs filesystem resize err"
+ status=1
+ exit
+ fi
+ _resize=1
+fi
+
+rm -rf $TEST_DIR/*
+cd $TEST_DIR
+dd if=/dev/zero of=tmp1 bs=4K count=1 > /dev/null 2>&1
+if [ $? -ne 0 ]
+then
+ echo "create file err"
+ status=1
+ exit
+fi
+
+dd if=/dev/zero of=tmp2 bs=1M > /dev/null 2>&1
+dd if=/dev/zero of=tmp3 bs=4K > /dev/null 2>&1
+sync
+
+rm -f tmp1
+sync
+
+dd if=/dev/zero of=tmp1 bs=8K count=1 > /dev/null 2>&1
+_filesize=`du tmp1 | awk '{print $1}'`
+if [ $_filesize -ne 4 ]
+then
+ echo "write file err"
+ status=1
+ exit
+fi
+
+echo "done"
+exit
diff --git a/266.out b/266.out
new file mode 100644
index 0000000..ce3340c
--- /dev/null
+++ b/266.out
@@ -0,0 +1,5 @@
+QA output created by 266
+------------------------------
+write lack test
+------------------------------
+done
diff --git a/group b/group
index f76ab8c..cf93ef9 100644
--- a/group
+++ b/group
@@ -379,3 +379,4 @@ deprecated
263 rw auto quick
264 auto rw
265 auto rw
+266 auto rw
--
1.7.3.1
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