[XFS,Tests,Punch,Hole,3/3,v3] XFS TESTS: Add Fallocate Punch Hole Test

diff --git a/254 b/254
new file mode 100755
index 0000000..32e8224
--- /dev/null
+++ b/254
@@ -0,0 +1,293 @@ 
+#! /bin/bash
+# FS QA Test No. 254
+#
+# Test hole punching through fallocate
+#
+# This test is a collection of corner case tests for
+# hole punching through fallocate
+#
+#-----------------------------------------------------------------------
+# Copyright (c) 2010 IBM Corporation. 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=achender@us.ibm.com
+
+seq=`basename $0`
+echo "QA output created by $seq"
+
+here=`pwd`
+tmp=/tmp/$$
+status=1	# failure is the default!
+
+_cleanup()
+{
+    rm -f $tmp.*
+}
+
+trap "_cleanup ; exit \$status" 0 1 2 3 15
+
+# get standard environment, filters and checks
+. ./common.rc
+. ./common.filter
+. ./common.punch
+
+# real QA test starts here
+_supported_fs generic
+_supported_os Linux
+
+_require_xfs_io_falloc_punch
+
+testfile=$TEST_DIR/254.$$
+
+# Small Hole Test
+#
+# In this test a hole is punched in a 10K file from bytes 
+# 8180 to 16216 resulting in some blocks being removed, and 
+# the non block aligned data to be cleared.  
+#
+# This test is a general purpose punch hole test to verify 
+# that the code can successfully split the extents, and 
+# remove the affected blocks, as well as clearing the 
+# associated pages
+#----------------------------------------------------------------------
+echo Running Small Hole Test
+file_len=40960
+hole_offset=8180
+hole_len=8180
+_hole_test -s -c $file_len $testfile $hole_offset $hole_len
+echo Small Hole Test OK
+
+# Big Hole and Hole Removal Test
+#
+# A hole large hole is punched in a large file,
+# Resulting in all but a few blocks being punched out
+# (exact number depends on the block size of the filesystem).
+# After the hole is punched out, the file is deleted
+#
+# This verifies that the code can properly
+# punch out a hole covering multiple extents, and
+# also ensure the all of the extents are properly
+# removed when the file is deleted.
+#
+# This test is successful when the following conditions are met:
+# - df shows that the number of available blocks is the same before the test file is copied 
+#  into the file system, and after the file is deleted
+#----------------------------------------------------------------------
+echo Running Big Hole and Hole Removal Test
+file_len=638162710
+hole_offset=6144
+hole_len=638150422
+
+block_size=`stat -f $TEST_DEV | grep "Block size" | cut -d " " -f3`
+
+rm $testfile*
+
+#record how many blocks free blocks the filesystem has
+fs_used_before_test=`df --block-size=$block_size $TEST_DEV | grep $TEST_DEV | awk '{ print $3 }'`
+fs_avail_before_test=`df --block-size=$block_size $TEST_DEV | grep $TEST_DEV | awk '{ print $4 }'`
+
+_hole_test -s -c $file_len $testfile $hole_offset $hole_len
+rm $testfile*
+
+#record how many blocks free blocks the filesystem has after the test
+fs_used_after_test=`df --block-size=$block_size $TEST_DEV | grep $TEST_DEV | awk '{ print $3 }'`
+fs_avail_after_test=`df --block-size=$block_size $TEST_DEV | grep $TEST_DEV | awk '{ print $4 }'`
+
+if [ $fs_used_before_test != $fs_used_after_test ] || \
+   [ $fs_avail_before_test != $fs_avail_after_test ]; then
+
+	echo Error: File system did not reclaim the correct number of blocks
+	echo The number of used and available blocks should be the same before and after the test
+	echo Used blocks before test: $fs_used_before_test
+	echo Available blocks before test: $fs_avail_before_test
+	echo Used blocks after test: $fs_used_after_test
+	echo Available blocks after test: $fs_avail_after_test
+	status=1 ; exit
+else
+	echo Big Hole and Hole Removal Test OK
+fi
+
+# Last Block Hole Test
+#
+# This test cases punches a hole in 10K file from bytes 32768 to 40960 
+# resulting in a hole that extends to the end of the file.  This test 
+# verifies that the code appropriately handles removing blocks at the 
+# end of the file
+#----------------------------------------------------------------------
+echo Running Last Block Hole Test
+file_len=40960
+hole_offset=32768
+hole_len=8192
+_hole_test -s -c $file_len $testfile $hole_offset $hole_len
+echo Last Block Hole Test OK
+
+# First Block Hole Test
+#
+# This test cases punches a hole in 10K file from bytes 0 to 8180 
+# This test verifies that the code appropriately handles punching
+# holes appearing at the beginning of the file.
+#----------------------------------------------------------------------
+echo Running First Block Hole Test
+file_len=40960
+hole_offset=0
+hole_len=8180
+_hole_test -s -c $file_len $testfile $hole_offset $hole_len
+echo First Block Hole Test OK
+
+# Cold Cache Hole Test
+#
+# This test is similar to the Small Hole Test, but the drive is 
+# unmounted and remounted before the hole is punched out to make 
+# sure that there are no pages in the cache. This test verifies
+# that the hole contains zeros even when the pages are cold.
+#----------------------------------------------------------------------
+echo Running Cold Cache Hole Test
+file_len=40960
+hole_offset=8180
+hole_len=8180
+_hole_test -m -s -c $file_len $testfile $hole_offset $hole_len
+echo Cold Cache Hole Test OK
+
+# Extended Last Block Hole Test
+#
+# This test cases punches a hole in 10K file from bytes 32768 to 45056
+# resulting in a hole that extends beyond the end of the file.  This 
+# test verifies that the code appropriately handles punching holes 
+# that extend beyond the end of the file
+#----------------------------------------------------------------------
+echo Running Last Block Hole Test
+file_len=40960
+hole_offset=32768
+hole_len=12288
+_hole_test -s -c $file_len $testfile $hole_offset $hole_len
+echo Last Block Hole Test OK
+
+# Off Edge Hole Test
+#
+# This test case punches a hole that is beyond the edge of the file.
+# This test is successful when ls, df, filefrag and the file contents 
+# show no changes
+#----------------------------------------------------------------------
+echo Running Off Edge Hole Test
+file_len=40960
+hole_offset=49052
+hole_len=8180
+_hole_test -s -c $file_len $testfile $hole_offset $hole_len
+echo Off Edge Hole Test OK
+
+# One Block Hole Test
+#
+# This test punches a hole in a file that is only one block in size 
+#----------------------------------------------------------------------
+echo Running One Block Hole Test
+block_size=`stat -f $TEST_DEV | grep "Block size" | cut -d " " -f3`
+file_len=$block_size
+hole_offset=$(( $block_size / 4 ))
+hole_len=$(( $hole_offset * 2 ))
+_hole_test -s -c $file_len $testfile $hole_offset $hole_len
+echo One Block Hole Test OK
+
+# Delayed Allocation Hole Test
+#
+# This test is similar to the Small Hole Test, but the file is not sync'd 
+# to the disk before the hole is punched out. This will test the codes 
+# ability to punch holes in delayed extents and also ensure that dirty
+# pages are zero'd properly
+#----------------------------------------------------------------------
+echo Running Delayed Allocation Hole Test
+file_len=40960
+hole_offset=8180
+hole_len=8180
+_hole_test -c $file_len $testfile $hole_offset $hole_len
+echo Delayed Allocation Hole Test OK
+
+# Pre Allocation Hole Test
+#
+# This test is similar to the Small Hole Test, but the file is 
+# preallocated before the hole is punched out.
+#----------------------------------------------------------------------
+echo Running Pre Allocation Hole Test
+file_len=40960
+hole_offset=8180
+hole_len=8180
+_hole_test -p $file_len $testfile $hole_offset $hole_len
+echo Pre Allocation Hole Test OK
+
+# Multi Hole Test
+#
+# This test verifies the code ability to handle existing holes
+# The test punches out 5 consecutive overlapping holes in a 10K file
+#----------------------------------------------------------------------
+echo Running Multi Hole Test
+file_len=40960
+hole_offset=8192
+hole_len=8192
+
+_hole_test -c $file_len $testfile $hole_offset $hole_len 
+
+hole_offset=8192
+hole_len=8192
+_hole_test $testfile $hole_offset $hole_len 
+
+hole_offset=8180
+hole_len=8192
+_hole_test $testfile $hole_offset $hole_len
+
+hole_offset=8204
+hole_len=8192
+_hole_test $testfile $hole_offset $hole_len
+
+hole_offset=12288
+hole_len=12288
+_hole_test $testfile $hole_offset $hole_len
+
+echo Multi Hole Test OK
+
+
+# Multi Hole Test Front
+#
+# This test verifies the codes ability to handle existing holes
+# at the front of the file.
+#----------------------------------------------------------------------
+echo Running Multi Hole Test Front
+file_len=40960
+hole_offset=0
+hole_len=8192
+_hole_test -s -c $file_len $testfile $hole_offset $hole_len 
+_hole_test $testfile $hole_offset $hole_len 
+echo Multi Hole Test Front OK
+
+
+# Multi Hole Test Delayed
+#
+# This test verifies the code ability to handle existing holes 
+# in delayed blocks. This test is similar to the Delayed Allocation 
+# Hole Test, but the hole is punched twice
+#----------------------------------------------------------------------
+echo Running Multi Hole Test Delayed
+file_len=40960
+hole_offset=8180
+hole_len=8180
+_hole_test -s -p $file_len $testfile $hole_offset $hole_len 
+_hole_test $testfile $hole_offset $hole_len 
+echo Multi Hole Test Delayed OK
+
+status=0 ; exit
+
+
+
diff --git a/254.out b/254.out
new file mode 100644
index 0000000..020e6da
--- /dev/null
+++ b/254.out
@@ -0,0 +1,27 @@ 
+QA output created by 254
+Running Small Hole Test
+Small Hole Test OK
+Running Big Hole and Hole Removal Test
+Big Hole and Hole Removal Test OK
+Running Last Block Hole Test
+Last Block Hole Test OK
+Running First Block Hole Test
+First Block Hole Test OK
+Running Cold Cache Hole Test
+Cold Cache Hole Test OK
+Running Last Block Hole Test
+Last Block Hole Test OK
+Running Off Edge Hole Test
+Off Edge Hole Test OK
+Running One Block Hole Test
+One Block Hole Test OK
+Running Delayed Allocation Hole Test
+Delayed Allocation Hole Test OK
+Running Pre Allocation Hole Test
+Pre Allocation Hole Test OK
+Running Multi Hole Test
+Multi Hole Test OK
+Running Multi Hole Test Front
+Multi Hole Test Front OK
+Running Multi Hole Test Delayed
+Multi Hole Test Delayed OK
diff --git a/group b/group
index 9f88e75..29954dc 100644
--- a/group
+++ b/group
@@ -367,3 +367,4 @@  deprecated
 251 ioctl trim
 252 auto quick prealloc
 253 auto quick
+254 other