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Date:	Sun,  8 Dec 2013 23:00:49 +0900
From:	Namjae Jeon <linkinjeon@...il.com>
To:	viro@...iv.linux.org.uk, dchinner@...morbit.com, bpm@....com,
	tytso@....edu, adilger.kernel@...ger.ca, jack@...e.cz
Cc:	linux-fsdevel@...r.kernel.org, xfs@....sgi.com,
	linux-ext4@...r.kernel.org, linux-kernel@...r.kernel.org,
	Namjae Jeon <linkinjeon@...il.com>,
	Namjae Jeon <namjae.jeon@...sung.com>,
	Ashish Sangwan <a.sangwan@...sung.com>
Subject: [PATCH v4 5/10] xfstest: shared/001: Standard collapse range tests

From: Namjae Jeon <namjae.jeon@...sung.com>

This testcase(001) tries to test various corner cases
for fcollapse range functionality over different type of extents.

Signed-off-by: Namjae Jeon <namjae.jeon@...sung.com>
Signed-off-by: Ashish Sangwan <a.sangwan@...sung.com>
---
 common/punch         |  133 ++++++++++++++++++++++++++++----------------------
 common/rc            |   14 ++++++
 tests/shared/001     |   65 ++++++++++++++++++++++++
 tests/shared/001.out |   53 ++++++++++++++++++++
 tests/shared/group   |    1 +
 5 files changed, 209 insertions(+), 57 deletions(-)
 create mode 100644 tests/shared/001
 create mode 100644 tests/shared/001.out

diff --git a/common/punch b/common/punch
index a49638c..f401455 100644
--- a/common/punch
+++ b/common/punch
@@ -317,13 +317,23 @@ _test_generic_punch()
 	map_cmd=$4
 	filter_cmd=$5
 	testfile=$6
+	multiple=1
+
+	#
+	# If we are testing collapse range, we increare all the offsets of this
+	# test by a factor of 4. We do this because unlike punch, collapse
+	# range also decreases the size of file hence require bigger offsets.
+	#
+	if [ "$zero_cmd" == "fcollapse" ]; then
+		multiple=4
+	fi
 
 	echo "	1. into a hole"
 	if [ "$remove_testfile" ]; then
 		rm -f $testfile
 	fi
-	$XFS_IO_PROG -f -c "truncate 20k" \
-		-c "$zero_cmd 4k 8k" \
+	$XFS_IO_PROG -f -c "truncate $(($multiple * 20))k" \
+		-c "$zero_cmd $(($multiple * 4))k $(($multiple * 8))k" \
 		-c "$map_cmd -v" $testfile | $filter_cmd
 	[ $? -ne 0 ] && die_now
 	_md5_checksum $testfile
@@ -332,9 +342,9 @@ _test_generic_punch()
 	if [ "$remove_testfile" ]; then
 		rm -f $testfile
 	fi
-	$XFS_IO_PROG -f -c "truncate 20k" \
-		-c "pwrite 0 20k" $sync_cmd \
-		-c "$zero_cmd 4k 8k" \
+	$XFS_IO_PROG -f -c "truncate $(($multiple * 20))k" \
+		-c "pwrite 0 $(($multiple * 20))k" $sync_cmd \
+		-c "$zero_cmd $(($multiple * 4))k $(($multiple * 8))k" \
 		-c "$map_cmd -v" $testfile | $filter_cmd
 	[ $? -ne 0 ] && die_now
 	_md5_checksum $testfile
@@ -344,9 +354,9 @@ _test_generic_punch()
 		if [ "$remove_testfile" ]; then
 			rm -f $testfile
 		fi
-		$XFS_IO_PROG -f -c "truncate 20k" \
-			-c "$alloc_cmd 0 20k" \
-			-c "$zero_cmd 4k 8k" \
+		$XFS_IO_PROG -f -c "truncate $(($multiple * 20))k" \
+			-c "$alloc_cmd 0 $(($multiple * 20))k" \
+			-c "$zero_cmd $(($multiple * 4))k $(($multiple * 8))k" \
 			-c "$map_cmd -v" $testfile | $filter_cmd
 		[ $? -ne 0 ] && die_now
 		_md5_checksum $testfile
@@ -356,9 +366,9 @@ _test_generic_punch()
 	if [ "$remove_testfile" ]; then
 		rm -f $testfile
 	fi
-	$XFS_IO_PROG -f -c "truncate 20k" \
-		-c "pwrite 8k 8k" $sync_cmd \
-		-c "$zero_cmd 4k 8k" \
+	$XFS_IO_PROG -f -c "truncate $(($multiple * 20))k" \
+		-c "pwrite $(($multiple * 8))k $(($multiple * 8))k" $sync_cmd \
+		-c "$zero_cmd $(($multiple * 4))k $(($multiple * 8))k" \
 		-c "$map_cmd -v" $testfile | $filter_cmd
 	[ $? -ne 0 ] && die_now
 	_md5_checksum $testfile
@@ -368,9 +378,9 @@ _test_generic_punch()
 		if [ "$remove_testfile" ]; then
 			rm -f $testfile
 		fi
-		$XFS_IO_PROG -f -c "truncate 20k" \
-			-c "$alloc_cmd 8k 8k" \
-			-c "$zero_cmd 4k 8k" \
+		$XFS_IO_PROG -f -c "truncate $(($multiple * 20))k" \
+			-c "$alloc_cmd $(($multiple * 8))k $(($multiple * 8))k" \
+			-c "$zero_cmd $(($multiple * 4))k $(($multiple * 8))k" \
 			-c "$map_cmd -v" $testfile | $filter_cmd
 		[ $? -ne 0 ] && die_now
 		_md5_checksum $testfile
@@ -380,9 +390,9 @@ _test_generic_punch()
 	if [ "$remove_testfile" ]; then
 		rm -f $testfile
 	fi
-	$XFS_IO_PROG -f -c "truncate 20k" \
-		-c "pwrite 0 8k" $sync_cmd \
-		-c "$zero_cmd 4k 8k" \
+	$XFS_IO_PROG -f -c "truncate $(($multiple * 20))k" \
+		-c "pwrite 0 $(($multiple * 8))k" $sync_cmd \
+		 -c "$zero_cmd $(($multiple * 4))k $(($multiple * 8))k" \
 		-c "$map_cmd -v" $testfile | $filter_cmd
 	[ $? -ne 0 ] && die_now
 	_md5_checksum $testfile
@@ -392,10 +402,10 @@ _test_generic_punch()
 		if [ "$remove_testfile" ]; then
 			rm -f $testfile
 		fi
-		$XFS_IO_PROG -f -c "truncate 20k" \
-			-c "pwrite 0 8k" $sync_cmd \
-			-c "$alloc_cmd 8k 8k" \
-			-c "$zero_cmd 4k 8k" \
+		$XFS_IO_PROG -f -c "truncate $(($multiple * 20))k" \
+			-c "pwrite 0 $(($multiple * 8))k" $sync_cmd \
+			-c "$alloc_cmd $(($multiple * 8))k $(($multiple * 8))k" \
+			-c "$zero_cmd $(($multiple * 4))k $(($multiple * 8))k" \
 			-c "$map_cmd -v" $testfile | $filter_cmd
 		[ $? -ne 0 ] && die_now
 		_md5_checksum $testfile
@@ -404,9 +414,9 @@ _test_generic_punch()
 		if [ "$remove_testfile" ]; then
 			rm -f $testfile
 		fi
-		$XFS_IO_PROG -f -c "truncate 20k" \
-			-c "$alloc_cmd 0 8k" \
-			-c "$zero_cmd 4k 8k" \
+		$XFS_IO_PROG -f -c "truncate $(($multiple * 20))k" \
+			-c "$alloc_cmd 0 $(($multiple * 8))k" \
+			-c "$zero_cmd $(($multiple * 4))k $(($multiple * 8))k" \
 			-c "$map_cmd -v" $testfile | $filter_cmd
 		[ $? -ne 0 ] && die_now
 		_md5_checksum $testfile
@@ -415,10 +425,10 @@ _test_generic_punch()
 		if [ "$remove_testfile" ]; then
 			rm -f $testfile
 		fi
-		$XFS_IO_PROG -f -c "truncate 20k" \
-			-c "$alloc_cmd 0 8k" \
-			-c "pwrite 8k 8k" $sync_cmd \
-			-c "$zero_cmd 4k 8k" \
+		$XFS_IO_PROG -f -c "truncate $(($multiple * 20))k" \
+			-c "$alloc_cmd 0 $(($multiple * 8))k" \
+			-c "pwrite $(($multiple * 8))k $(($multiple * 8))k" $sync_cmd \
+			-c "$zero_cmd $(($multiple * 4))k $(($multiple * 8))k" \
 			-c "$map_cmd -v" $testfile | $filter_cmd
 		[ $? -ne 0 ] && die_now
 		_md5_checksum $testfile
@@ -428,9 +438,9 @@ _test_generic_punch()
 	if [ "$remove_testfile" ]; then
 		rm -f $testfile
 	fi
-	$XFS_IO_PROG -f -c "truncate 20k" \
-		-c "pwrite 8k 4k" $sync_cmd \
-		-c "$zero_cmd 4k 12k" \
+	$XFS_IO_PROG -f -c "truncate $(($multiple * 20))k" \
+		-c "pwrite $(($multiple * 8))k $(($multiple * 4))k" $sync_cmd \
+		-c "$zero_cmd $(($multiple * 4))k $(($multiple * 12))k" \
 		-c "$map_cmd -v" $testfile | $filter_cmd
 	[ $? -ne 0 ] && die_now
 	_md5_checksum $testfile
@@ -439,12 +449,12 @@ _test_generic_punch()
 	if [ "$remove_testfile" ]; then
 		rm -f $testfile
 	fi
-	$XFS_IO_PROG -f -c "truncate 20k" \
-		-c "$alloc_cmd 0 20k" \
-		-c "pwrite 0 8k" \
-		-c "pwrite 12k 8k" $sync_cmd \
-		-c "$punch_cmd 8k 4k" \
-		-c "$zero_cmd 4k 12k" \
+	$XFS_IO_PROG -f -c "truncate $(($multiple * 20))k" \
+		-c "$alloc_cmd 0 $(($multiple * 20))k" \
+		-c "pwrite 0 $(($multiple * 8))k" \
+		-c "pwrite $(($multiple * 12))k $(($multiple * 8))k" $sync_cmd \
+		-c "$punch_cmd $(($multiple * 8))k $(($multiple * 4))k" \
+		-c "$zero_cmd $(($multiple * 4))k $(($multiple * 12))k" \
 		-c "$map_cmd -v" $testfile | $filter_cmd
 	[ $? -ne 0 ] && die_now
 	_md5_checksum $testfile
@@ -454,10 +464,10 @@ _test_generic_punch()
 		if [ "$remove_testfile" ]; then
 			rm -f $testfile
 		fi
-		$XFS_IO_PROG -f -c "truncate 20k" \
-			-c "$alloc_cmd 0 20k" \
-			-c "pwrite 8k 4k" $sync_cmd \
-			-c "$zero_cmd 4k 12k" \
+		$XFS_IO_PROG -f -c "truncate $(($multiple * 20))k" \
+			-c "$alloc_cmd 0 $(($multiple * 20))k" \
+			-c "pwrite $(($multiple * 8))k $(($multiple * 4))k" $sync_cmd \
+			-c "$zero_cmd $(($multiple * 4))k $(($multiple * 12))k" \
 			-c "$map_cmd -v" $testfile | $filter_cmd
 		[ $? -ne 0 ] && die_now
 		_md5_checksum $testfile
@@ -466,11 +476,11 @@ _test_generic_punch()
 		if [ "$remove_testfile" ]; then
 			rm -f $testfile
 		fi
-		$XFS_IO_PROG -f -c "truncate 20k" \
-			-c "$alloc_cmd 0 20k" \
-			-c "pwrite 0k 8k" $sync_cmd \
-			-c "pwrite 12k 8k" -c "fsync" \
-			-c "$zero_cmd 4k 12k" \
+		$XFS_IO_PROG -f -c "truncate $(($multiple * 20))k" \
+			-c "$alloc_cmd 0 $(($multiple * 20))k" \
+			-c "pwrite 0k $(($multiple * 4))k" $sync_cmd \
+			-c "pwrite $(($multiple * 12))k $(($multiple * 8))k" -c "fsync" \
+			-c "$zero_cmd $(($multiple * 4))k $(($multiple * 12))k" \
 			-c "$map_cmd -v" $testfile | $filter_cmd
 		[ $? -ne 0 ] && die_now
 		_md5_checksum $testfile
@@ -478,9 +488,9 @@ _test_generic_punch()
 
 	echo "	14. data -> hole @ EOF"
 	rm -f $testfile
-	$XFS_IO_PROG -f -c "truncate 20k" \
-		-c "pwrite 0 20k" $sync_cmd \
-		-c "$zero_cmd 12k 8k" \
+	$XFS_IO_PROG -f -c "truncate $(($multiple * 20))k" \
+		-c "pwrite 0 $(($multiple * 20))k" $sync_cmd \
+		-c "$zero_cmd $(($multiple * 12))k $(($multiple * 8))k" \
 		-c "$map_cmd -v" $testfile | $filter_cmd
 	[ $? -ne 0 ] && die_now
 	_md5_checksum $testfile
@@ -489,13 +499,22 @@ _test_generic_punch()
 	if [ "$remove_testfile" ]; then
 		rm -f $testfile
 	fi
-	$XFS_IO_PROG -f -c "truncate 20k" \
-		-c "pwrite 0 20k" $sync_cmd \
-		-c "$zero_cmd 0k 8k" \
+	$XFS_IO_PROG -f -c "truncate $(($multiple * 20))k" \
+		-c "pwrite 0 $(($multiple * 20))k" $sync_cmd \
+		-c "$zero_cmd 0 $(($multiple * 8))k" \
 		-c "$map_cmd -v" $testfile | $filter_cmd
 	[ $? -ne 0 ] && die_now
 	_md5_checksum $testfile
 
+	# If zero_cmd is fcollpase, don't check unaligned offsets
+	if [ "$zero_cmd" == "fcollapse" ]; then
+		if [ "$remove_testfile" ]; then
+			rm -f $testfile
+			rm -f $testfile.2
+		fi
+		return
+	fi
+	
 	echo "	16. data -> cache cold ->hole"
 	if [ "$remove_testfile" ]; then
 		rm -f $testfile
@@ -503,12 +522,12 @@ _test_generic_punch()
 	else
 		cp $testfile $testfile.2
 	fi
-	$XFS_IO_PROG -f -c "truncate 20k" \
-		-c "pwrite 8k 12k" -c "fsync" $testfile.2 \
+	$XFS_IO_PROG -f -c "truncate $(($multiple * 20))k" \
+		-c "pwrite $(($multiple * 8))k $(($multiple * 12))k" -c "fsync" $testfile.2 \
 		> /dev/null
-	$XFS_IO_PROG -f -c "truncate 20k" \
-		-c "pwrite 0 20k" $sync_cmd \
-		-c "$zero_cmd 0k 8k" \
+	$XFS_IO_PROG -f -c "truncate $(($multiple * 20))k" \
+		-c "pwrite 0 $(($multiple * 20))k" $sync_cmd \
+		-c "$zero_cmd 0k $(($multiple * 8))k" \
 		-c "fadvise -d" \
 		-c "$map_cmd -v" $testfile | $filter_cmd
 	diff $testfile $testfile.2
diff --git a/common/rc b/common/rc
index 5f61d57..3be4721 100644
--- a/common/rc
+++ b/common/rc
@@ -1259,6 +1259,20 @@ _require_xfs_io_falloc_punch()
 		_notrun "xfs_io fallocate punch command failed (no fs support?)"
 }
 
+# check that xfs_io, kernel and filesystem all support fallocate with collapse
+# range
+_require_xfs_io_falloc_collapse()
+{
+	testfile=$TEST_DIR/$$.falloc
+	testio=`$XFS_IO_PROG -f -c "pwrite 0 20k" -c "fsync" \
+		-c "fcollapse 4k 8k" $testfile 2>&1`
+	rm -f $testfile 2>&1 > /dev/null
+	echo $testio | grep -q "not found" && \
+		_notrun "xfs_io fallocate collapse range support is missing"
+	echo $testio | grep -q "Operation not supported" && \
+		_notrun "xfs_io fallocate collapse range failed (no fs support?)"
+}
+
 # check that xfs_io, kernel and filesystem support fiemap
 _require_xfs_io_fiemap()
 {
diff --git a/tests/shared/001 b/tests/shared/001
new file mode 100644
index 0000000..b3ebbba
--- /dev/null
+++ b/tests/shared/001
@@ -0,0 +1,65 @@
+#! /bin/bash
+# FS QA Test No. 1
+#
+# Standard collapse range tests 
+# This testcase is one of the 4 testcases (shared 001 - 004) which tries to
+# test various corner cases for fcollapse range functionality over different
+# type of extents. These tests are based on generic/255 test case.
+# For the type of tests, check the description of _test_generic_punch
+# in common/rc.
+#-----------------------------------------------------------------------
+# Copyright (c) 2013 Samsung Electronics.  All Rights Reserved.
+#
+# This program is free software; you can redistribute it and/or
+# modify it under the terms of the GNU General Public License as
+# published by the Free Software Foundation.
+#
+# This program is distributed in the hope that it would be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with this program; if not, write the Free Software Foundation,
+# Inc.,  51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
+#
+#-----------------------------------------------------------------------
+#
+
+seq=`basename $0`
+seqres=$RESULT_DIR/$seq
+echo "QA output created by $seq"
+
+here=`pwd`
+tmp=/tmp/$$
+status=1	# failure is the default!
+
+_cleanup()
+{
+    rm -f $tmp.*
+}
+
+trap "_cleanup ; exit \$status" 0 1 2 3 15
+
+# get standard environment, filters and checks
+# we need to include common/punch to get defination fo filter functions
+. ./common/rc
+. ./common/filter
+. ./common/punch
+
+# real QA test starts here
+_supported_fs xfs ext4
+_supported_os Linux
+
+_require_xfs_io_falloc_punch
+_require_xfs_io_falloc
+_require_xfs_io_fiemap
+_require_xfs_io_falloc_collapse
+
+testfile=$TEST_DIR/$seq.$$
+
+_test_generic_punch falloc fpunch fcollapse fiemap _filter_hole_fiemap $testfile
+_check_test_fs
+
+status=0
+exit
diff --git a/tests/shared/001.out b/tests/shared/001.out
new file mode 100644
index 0000000..bff2bab
--- /dev/null
+++ b/tests/shared/001.out
@@ -0,0 +1,53 @@
+QA output created by 001
+	1. into a hole
+f4f35d60b3cc18aaa6d8d92f0cd3708a
+	2. into allocated space
+0: [0..95]: extent
+f1894a71ac539f6f90426d98a4990a47
+	3. into unwritten space
+0: [0..95]: extent
+f4f35d60b3cc18aaa6d8d92f0cd3708a
+	4. hole -> data
+0: [0..31]: hole
+1: [32..63]: extent
+2: [64..95]: hole
+d8f51c20223dbce5c7c90db87bc221b0
+	5. hole -> unwritten
+0: [0..31]: hole
+1: [32..63]: extent
+2: [64..95]: hole
+f4f35d60b3cc18aaa6d8d92f0cd3708a
+	6. data -> hole
+0: [0..31]: extent
+1: [32..95]: hole
+f07217d5ac7ffa15dd8910c4aa912674
+	7. data -> unwritten
+0: [0..63]: extent
+1: [64..95]: hole
+f07217d5ac7ffa15dd8910c4aa912674
+	8. unwritten -> hole
+0: [0..31]: extent
+1: [32..95]: hole
+f4f35d60b3cc18aaa6d8d92f0cd3708a
+	9. unwritten -> data
+0: [0..63]: extent
+1: [64..95]: hole
+d8f51c20223dbce5c7c90db87bc221b0
+	10. hole -> data -> hole
+bb7df04e1b0a2570657527a7e108ae23
+	11. data -> hole -> data
+0: [0..63]: extent
+0f0151cbed83e4bf6e5bde26e82ab115
+	12. unwritten -> data -> unwritten
+0: [0..63]: extent
+bb7df04e1b0a2570657527a7e108ae23
+	13. data -> unwritten -> data
+0: [0..63]: extent
+0f0151cbed83e4bf6e5bde26e82ab115
+	14. data -> hole @ EOF
+fallocate: Invalid argument
+0: [0..159]: extent
+7670f4830c6724a25e7c22d9eb9a6f4f
+	15. data -> hole @ 0
+0: [0..95]: extent
+f1894a71ac539f6f90426d98a4990a47
diff --git a/tests/shared/group b/tests/shared/group
index 0ad640b..5562f92 100644
--- a/tests/shared/group
+++ b/tests/shared/group
@@ -3,6 +3,7 @@
 # - do not start group names with a digit
 # - comment line before each group is "new" description
 #
+001 auto prealloc
 032 mkfs auto quick
 051 acl udf auto quick
 218 auto fsr quick
-- 
1.7.9.5

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