[PATCH v2 12/12] block: test fallocate for block devices

Darrick J. Wong
2016-03-15T19:26:13Z

Now that we're wiring up fallocate's PUNCH_HOLE and ZERO_RANGE
features for block devices, add some tests to make sure they
work correctly.

v2: Update tests to reflect EOD clamping suggested by Linus.

Signed-off-by: Darrick J. Wong <darrick.wong@oracle.com>
---
common/scsi_debug | 6 ++
tests/generic/705 | 77 ++++++++++++++++++++++++++++++++
tests/generic/705.out | 11 +++++
tests/generic/706 | 74 +++++++++++++++++++++++++++++++
tests/generic/706.out | 10 ++++
tests/generic/707 | 118 +++++++++++++++++++++++++++++++++++++++++++++++++
tests/generic/707.out | 32 +++++++++++++
tests/generic/group | 3 +
8 files changed, 330 insertions(+), 1 deletion(-)
create mode 100755 tests/generic/705
create mode 100644 tests/generic/705.out
create mode 100755 tests/generic/706
create mode 100644 tests/generic/706.out
create mode 100755 tests/generic/707
create mode 100644 tests/generic/707.out

diff --git a/common/scsi_debug b/common/scsi_debug
index eb08126..74c3802 100644
--- a/common/scsi_debug
+++ b/common/scsi_debug
@@ -40,13 +40,17 @@ _get_scsi_debug_dev()
logical=${2-512}
unaligned=${3-0}
size=${4-128}
+ test -n "$4" && shift
+ test -n "$3" && shift
+ test -n "$2" && shift
+ test -n "$1" && shift

phys_exp=0
while [ $logical -lt $physical ]; do
let physical=physical/2
let phys_exp=phys_exp+1
done
- opts="sector_size=$logical physblk_exp=$phys_exp lowest_aligned=$unaligned dev_size_mb=$size"
+ opts="sector_size=$logical physblk_exp=$phys_exp lowest_aligned=$unaligned dev_size_mb=$size $@"
echo "scsi_debug options $opts" >> $seqres.full
modprobe scsi_debug $opts
[ $? -eq 0 ] || _fail "scsi_debug modprobe failed"
diff --git a/tests/generic/705 b/tests/generic/705
new file mode 100755
index 0000000..4bb8752
--- /dev/null
+++ b/tests/generic/705
@@ -0,0 +1,77 @@
+#! /bin/bash
+# FS QA Test No. 705
+#
+# Test fallocate(ZERO_RANGE) on a block device, which should be able to
+# WRITE SAME (or equivalent) the range.
+#
+#-----------------------------------------------------------------------
+# Copyright (c) 2016 Oracle, 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
+#-----------------------------------------------------------------------
+#
+
+seq=`basename $0`
+seqres=$RESULT_DIR/$seq
+echo "QA output created by $seq"
+
+here=`pwd`
+tmp=/tmp/$$
+status=1 # failure is the default!
+trap "_cleanup; exit \$status" 0 1 2 3 7 15
+
+_cleanup()
+{
+ cd /
+ rm -rf $tmp.*
+}
+
+# get standard environment, filters and checks
+. ./common/rc
+. ./common/filter
+. ./common/scsi_debug
+
+# real QA test starts here
+_supported_os Linux
+_require_scsi_debug
+_require_xfs_io_command "fzero"
+
+echo "Create and format"
+dev=$(_get_scsi_debug_dev 512 512 0 4 "lbpws=1 lbpws10=1")
+_pwrite_byte 0x62 0 4m $dev >> $seqres.full
+
+echo "Zero range"
+$XFS_IO_PROG -c "fzero -k 512k 1m" $dev
+
+echo "Zero range without keep_size"
+$XFS_IO_PROG -c "fzero 384k 64k" $dev
+
+echo "Zero range past EOD"
+$XFS_IO_PROG -c "fzero -k 3m 4m" $dev
+
+echo "Check contents"
+md5sum $dev | sed -e "s|$dev|SCSI_DEBUG_DEV|g"
+
+echo "Zero range to EOD"
+$XFS_IO_PROG -c "fzero -k 0 9223372036854775807" $dev
+
+echo "Check contents"
+md5sum $dev | sed -e "s|$dev|SCSI_DEBUG_DEV|g"
+
+echo "Destroy device"
+_put_scsi_debug_dev
+
+# success, all done
+status=0
+exit
diff --git a/tests/generic/705.out b/tests/generic/705.out
new file mode 100644
index 0000000..ccbda23
--- /dev/null
+++ b/tests/generic/705.out
@@ -0,0 +1,11 @@
+QA output created by 705
+Create and format
+Zero range
+Zero range without keep_size
+Zero range past EOD
+Check contents
+f0cb9070c098aa347f664bead3a219d9 SCSI_DEBUG_DEV
+Zero range to EOD
+Check contents
+b5cfa9d6c8febd618f91ac2843d50a1c SCSI_DEBUG_DEV
+Destroy device
diff --git a/tests/generic/706 b/tests/generic/706
new file mode 100755
index 0000000..184dbc2
--- /dev/null
+++ b/tests/generic/706
@@ -0,0 +1,74 @@
+#! /bin/bash
+# FS QA Test No. 706
+#
+# Test fallocate(PUNCH_HOLE) on a block device, which should be able to
+# zero-TRIM (or equivalent) the range.
+#
+#-----------------------------------------------------------------------
+# Copyright (c) 2016 Oracle, 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
+#-----------------------------------------------------------------------
+#
+
+seq=`basename $0`
+seqres=$RESULT_DIR/$seq
+echo "QA output created by $seq"
+
+here=`pwd`
+tmp=/tmp/$$
+status=1 # failure is the default!
+trap "_cleanup; exit \$status" 0 1 2 3 7 15
+
+_cleanup()
+{
+ cd /
+ rm -rf $tmp.*
+}
+
+# get standard environment, filters and checks
+. ./common/rc
+. ./common/filter
+. ./common/scsi_debug
+
+# real QA test starts here
+_supported_os Linux
+_require_scsi_debug
+_require_xfs_io_command "fpunch"
+
+echo "Create and format"
+dev=$(_get_scsi_debug_dev 512 512 0 4 "lbpws=1 lbpws10=1")
+_pwrite_byte 0x62 0 4m $dev >> $seqres.full
+
+echo "Zero punch"
+$XFS_IO_PROG -c "fpunch 512k 1m" $dev
+
+echo "Punch range past EOD"
+$XFS_IO_PROG -c "fpunch 3m 4m" $dev
+
+echo "Check contents"
+md5sum $dev | sed -e "s|$dev|SCSI_DEBUG_DEV|g"
+
+echo "Punch to EOD"
+$XFS_IO_PROG -c "fpunch 0 9223372036854775807" $dev
+
+echo "Check contents"
+md5sum $dev | sed -e "s|$dev|SCSI_DEBUG_DEV|g"
+
+echo "Destroy device"
+_put_scsi_debug_dev
+
+# success, all done
+status=0
+exit
diff --git a/tests/generic/706.out b/tests/generic/706.out
new file mode 100644
index 0000000..53a09ae
--- /dev/null
+++ b/tests/generic/706.out
@@ -0,0 +1,10 @@
+QA output created by 706
+Create and format
+Zero punch
+Punch range past EOD
+Check contents
+8c6a3fd51601141b56eaebbab3746156 SCSI_DEBUG_DEV
+Punch to EOD
+Check contents
+b5cfa9d6c8febd618f91ac2843d50a1c SCSI_DEBUG_DEV
+Destroy device
diff --git a/tests/generic/707 b/tests/generic/707
new file mode 100755
index 0000000..fab997f
--- /dev/null
+++ b/tests/generic/707
@@ -0,0 +1,118 @@
+#! /bin/bash
+# FS QA Test No. 707
+#
+# Test the unsupported fallocate flags on a block device. No collapse
+# or insert range, no regular fallocate, no forgetting keep-space on
+# zero range, no punching past EOD, no requests that aren't aligned
+# with the logicalsector size, and make sure the fallbacks work for
+# devices that don't support write_same or discard.
+#
+#-----------------------------------------------------------------------
+# Copyright (c) 2016 Oracle, 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
+#-----------------------------------------------------------------------
+#
+
+seq=`basename $0`
+seqres=$RESULT_DIR/$seq
+echo "QA output created by $seq"
+
+here=`pwd`
+tmp=/tmp/$$
+status=1 # failure is the default!
+trap "_cleanup; exit \$status" 0 1 2 3 7 15
+
+_cleanup()
+{
+ cd /
+ rm -rf $tmp.*
+}
+
+# get standard environment, filters and checks
+. ./common/rc
+. ./common/filter
+. ./common/scsi_debug
+
+# real QA test starts here
+_supported_os Linux
+_require_scsi_debug
+_require_xfs_io_command "falloc"
+_require_xfs_io_command "finsert"
+_require_xfs_io_command "fcollapse"
+_require_xfs_io_command "fzero"
+_require_xfs_io_command "fpunch"
+
+
+echo "Create and format"
+dev=$(_get_scsi_debug_dev 4096 4096 0 4 "lbpws=1 lbpws10=1")
+_pwrite_byte 0x62 0 4m $dev >> $seqres.full
+$XFS_IO_PROG -c "fsync" $dev
+
+echo "Regular fallocate"
+$XFS_IO_PROG -c "falloc 64k 64k" $dev
+
+echo "Insert range"
+$XFS_IO_PROG -c "finsert 128k 64k" $dev
+
+echo "Collapse range"
+$XFS_IO_PROG -c "fcollapse 256k 64k" $dev
+
+echo "Unaligned zero range"
+$XFS_IO_PROG -c "fzero -k 512 512" $dev
+
+echo "Unaligned punch"
+$XFS_IO_PROG -c "fpunch 512 512" $dev
+
+echo "Zero range toobig keep size"
+$XFS_IO_PROG -c "fzero -k 512k 9223372036854775807" $dev
+
+echo "Zero range toobig"
+$XFS_IO_PROG -c "fzero 512k 9223372036854775807" $dev
+
+echo "Zero range to EOD fail w/o keepsize"
+$XFS_IO_PROG -c "fzero 0 9223372036854775807" $dev
+
+echo "Zero range starts past EOD"
+$XFS_IO_PROG -c "fzero -k 900m 1m" $dev
+
+echo "Punch starts past EOD"
+$XFS_IO_PROG -c "fpunch 900m 1m" $dev
+
+echo "Check contents"
+md5sum $dev | sed -e "s|$dev|SCSI_DEBUG_DEV|g"
+
+echo "Destroy device"
+_put_scsi_debug_dev
+
+echo "Create w/o unmap or writesame and format"
+dev=$(_get_scsi_debug_dev 512 512 0 4 "lbpws=0 lbpws10=0 lbpu=0 write_same_length=0 unmap_max_blocks=0")
+_pwrite_byte 0x62 0 4m $dev >> $seqres.full
+$XFS_IO_PROG -c "fsync" $dev
+
+echo "Zero punch, no fallback available"
+$XFS_IO_PROG -c "fpunch 512k 512k" $dev
+
+echo "Zero range, write fallback"
+$XFS_IO_PROG -c "fzero -k 1536k 512k" $dev
+
+echo "Check contents"
+md5sum $dev | sed -e "s|$dev|SCSI_DEBUG_DEV|g"
+
+echo "Destroy device"
+_put_scsi_debug_dev
+
+# success, all done
+status=0
+exit
diff --git a/tests/generic/707.out b/tests/generic/707.out
new file mode 100644
index 0000000..050c70c
--- /dev/null
+++ b/tests/generic/707.out
@@ -0,0 +1,32 @@
+QA output created by 707
+Create and format
+Regular fallocate
+fallocate: Operation not supported
+Insert range
+fallocate: Operation not supported
+Collapse range
+fallocate: Operation not supported
+Unaligned zero range
+fallocate: Invalid argument
+Unaligned punch
+fallocate: Invalid argument
+Zero range toobig keep size
+fallocate: File too large
+Zero range toobig
+fallocate: File too large
+Zero range to EOD fail w/o keepsize
+fallocate: Invalid argument
+Zero range starts past EOD
+fallocate: Invalid argument
+Punch starts past EOD
+fallocate: Invalid argument
+Check contents
+b83f9394092e15bdcda585cd8e776dc6 SCSI_DEBUG_DEV
+Destroy device
+Create w/o unmap or writesame and format
+Zero punch, no fallback available
+fallocate: Operation not supported
+Zero range, write fallback
+Check contents
+0fc6bc93cd0cd97e3cde5ea39ea1185d SCSI_DEBUG_DEV
+Destroy device
diff --git a/tests/generic/group b/tests/generic/group
index 727648c..51a2d63 100644
--- a/tests/generic/group
+++ b/tests/generic/group
@@ -340,3 +340,6 @@
335 auto quick metadata
336 auto quick metadata
337 auto quick metadata
+705 blockdev quick rw
+706 blockdev quick rw
+707 blockdev quick rw