4 # The posix write test. When write size is larger than disk free size,
5 # should write as much as possible until ENOSPC.
7 #-----------------------------------------------------------------------
8 # Copyright (c) 2011-2012 Fujitsu, Inc. All Rights Reserved.
10 # This program is free software; you can redistribute it and/or
11 # modify it under the terms of the GNU General Public License as
12 # published by the Free Software Foundation.
14 # This program is distributed in the hope that it would be useful,
15 # but WITHOUT ANY WARRANTY; without even the implied warranty of
16 # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
17 # GNU General Public License for more details.
19 # You should have received a copy of the GNU General Public License
20 # along with this program; if not, write the Free Software Foundation,
21 # Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
23 #-----------------------------------------------------------------------
28 echo "QA output created by $seq"
32 status=1 # failure is the default!
33 trap "_cleanup; exit \$status" 0 1 2 3 15
44 # real QA test starts here
46 _supported_os IRIX Linux
49 echo "------------------------------"
50 echo "write until ENOSPC test"
51 echo "------------------------------"
55 umount $SCRATCH_DEV 2>/dev/null
56 _scratch_mkfs_sized $((2 * 1024 * 1024 * 1024)) >>$seq.full 2>&1
59 dd if=/dev/zero of=$SCRATCH_MNT/tmp1 bs=256K count=1 >>$seq.full 2>&1
60 [ $? -ne 0 ] && _fail "Error creating file"
62 # Attempt to completely fill fs
63 dd if=/dev/zero of=$SCRATCH_MNT/tmp2 bs=1M >>$seq.full 2>&1
65 dd if=/dev/zero of=$SCRATCH_MNT/tmp3 bs=4K >>$seq.full 2>&1
67 # Last effort, use O_SYNC
68 dd if=/dev/zero of=$SCRATCH_MNT/tmp4 bs=4K oflag=sync >>$seq.full 2>&1
69 # Save space usage info to the full file
70 echo "Pre rm space:" >> $seq.full
71 df $SCRATCH_MNT >>$seq.full 2>&1
73 # Should leave approx 256k free
74 rm -f $SCRATCH_MNT/tmp1
76 echo "Post rm space:" >> $seq.full
77 df $SCRATCH_MNT >>$seq.full 2>&1
78 _freespace=`df -k $SCRATCH_MNT | tail -n 1 | awk '{print $4}'`
79 [ $_freespace -gt 1024 ] && _fail "could not sufficiently fill filesystem"
81 # Try a write larger than available space
82 dd if=/dev/zero of=$SCRATCH_MNT/tmp1 bs=1M count=1 >>$seq.full 2>&1
83 echo "Bytes written until ENOSPC:" >>$seq.full
84 du $SCRATCH_MNT/tmp1 >>$seq.full
86 # And at least some of it should succeed.
87 _filesize=`ls -l $SCRATCH_MNT/tmp1 | awk '{print $5}'`
88 [ $_filesize -eq 0 ] && _fail "write file err: Partial write until enospc failed; wrote 0 bytes."