Adding upstream version 2:2.6.1.upstream/2%2.6.1upstream

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

1 files changed, 379 insertions, 0 deletions

diff --git a/tests/blockwise-compat-test b/tests/blockwise-compat-test
new file mode 100755
index 0000000..11db493
--- /dev/null
+++ b/tests/blockwise-compat-test
@@ -0,0 +1,379 @@
+#!/bin/bash
+
+# set _FORCE_LOCAL environment variable to run blockwise unit tests even on local
+# nfs. Some tests will fail because nfs is eager to write for example 4095 bytes
+# in O_DIRECT mode.
+
+BW_UNIT=./unit-utils-io
+STRACE=strace
+MNT_DIR=./mnt_bwunit
+LOCAL_FILE=./blockwise_localfile
+
+# $1 path to scsi debug bdev
+scsi_debug_teardown() {
+	local _tries=15;
+
+	while [ -b "$1" -a $_tries -gt 0 ]; do
+		rmmod scsi_debug >/dev/null 2>&1
+		if [ -b "$1" ]; then
+			sleep .1
+			_tries=$((_tries-1))
+		fi
+	done
+
+	test ! -b "$1" || rmmod scsi_debug >/dev/null 2>&1
+}
+
+cleanup() {
+	if [ -d "$MNT_DIR" ] ; then
+	    umount -f $MNT_DIR 2>/dev/null
+	    rmdir $MNT_DIR 2>/dev/null
+	fi
+	rm -f $LOCAL_FILE 2> /dev/null
+	scsi_debug_teardown "$DEV" || exit 100
+}
+
+fail()
+{
+	if [ -n "$1" ] ; then echo "FAIL $1" ; else echo "FAIL" ; fi
+	cleanup
+	exit 100
+}
+
+fail_count()
+{
+	echo "$MSG[FAIL]"
+	FAILS=$((FAILS+1))
+}
+
+warn_count()
+{
+	echo "$MSG[WARNING]"
+	WARNS=$((WARNS+1))
+}
+
+skip()
+{
+	echo "TEST SKIPPED: $1"
+	cleanup
+	exit 77
+}
+
+add_device() {
+	rmmod scsi_debug >/dev/null 2>&1
+	if [ -d /sys/module/scsi_debug ] ; then
+		skip "Cannot use scsi_debug module (in use or compiled-in)."
+	fi
+	modprobe scsi_debug $@ delay=0 >/dev/null 2>&1
+	if [ $? -ne 0 ] ; then
+		skip "This kernel seems to not support proper scsi_debug module."
+	fi
+	grep -q scsi_debug /sys/block/*/device/model || sleep 2
+	DEV=$(grep -l -e scsi_debug /sys/block/*/device/model | cut -f4 -d /)
+	DEV="/dev/$DEV"
+	[ -b $DEV ] || fail "Cannot find $DEV."
+}
+
+falloc() {
+	dd if=/dev/zero of=$2 bs=1M count=$1 2> /dev/null
+}
+
+run_all_in_fs() {
+	for file in $(ls img_fs_*.img.xz) ; do
+		echo "Run tests in $file put on top block device."
+		xz -d -c $file | dd of=$DEV bs=1M 2>/dev/null || fail "bad image"
+		[ ! -d $MNT_DIR ] && mkdir $MNT_DIR
+		mount $DEV $MNT_DIR
+		if [ $? -ne 0 ]; then
+			echo "Mounting image $file failed, skipped."
+			continue;
+		fi
+		rm -rf $MNT_DIR/* 2>/dev/null
+		local tfile=$MNT_DIR/bwunit_tstfile
+		falloc $DEVSIZEMB $tfile || fail "enospc?"
+		local iobsize=$(stat -c "%o" $tfile)
+		test -n "$iobsize" -a $iobsize -gt 0 || fail
+		local oldbsize=$BSIZE
+		BSIZE=$iobsize
+		run_all $tfile
+		BSIZE=$oldbsize
+		umount $MNT_DIR
+	done
+}
+
+trunc_file() {
+	test $1 -eq 0 || truncate -c -s $1 $2 2>/dev/null || dd if=/dev/zero of=$2 bs=$1 count=1 2>/dev/null || fail "Failed to truncate test file $2."
+}
+
+RUN() {
+	local _res=$1
+	shift
+	local _dev=$1
+	shift
+	local _fn=$1
+	shift
+	local _type="bdev"
+	local _fsize=0
+
+	test -b $_dev || {
+		_type="file"
+		_fsize=$(stat -c "%s" $_dev)
+	}
+
+	case "$_res" in
+	P)
+		MSG="Testing $_fn on $_type with params $@ [expecting TRUE]..."
+		$BW_UNIT $_dev $_fn $@
+		if [ $? -ne 0 ]; then
+			if [ $_type = "file" ]; then
+				warn_count
+			else
+				fail_count
+			fi
+			trunc_file $_fsize $_dev
+			test -z "$STRACE" || $STRACE -o ./$BW_UNIT-fail-$FAILS-should-pass.log $BW_UNIT $_dev $_fn $@ 2> /dev/null
+		else
+			MSG="$MSG[OK]"
+		fi
+		;;
+	F)
+		MSG="Testing $_fn on $_type with params $@ [expecting FALSE]..."
+		$BW_UNIT $_dev $_fn $@ 2> /dev/null
+		if [ $? -eq 0 ]; then
+			if [ $_type = "file" ]; then
+				warn_count
+			else
+				fail_count
+			fi
+			trunc_file $_fsize $_dev
+			test -z "$STRACE" || $STRACE -o ./$BW_UNIT-fail-$FAILS-should-fail.log $BW_UNIT $_dev $_fn $@ 2> /dev/null
+		else
+			MSG="$MSG[OK]"
+		fi
+		;;
+	*)
+		fail "Internal test error"
+		;;
+	esac
+
+	trunc_file $_fsize $_dev
+}
+
+run_all() {
+	if [ -b "$1" ]; then
+		BD_FAIL="F"
+	else
+		BD_FAIL="P"
+	fi
+
+	# buffer io support only blocksize aligned ios
+	# device/file fn_name length
+	RUN "P" $1 read_buffer $BSIZE
+	RUN "P" $1 read_buffer $((2*BSIZE))
+	RUN "F" $1 read_buffer $((BSIZE-1))
+	RUN "F" $1 read_buffer $((BSIZE+1))
+	RUN "P" $1 read_buffer 0
+
+	RUN "P" $1 write_buffer $BSIZE
+	RUN "P" $1 write_buffer $((2*BSIZE))
+
+	RUN "F" $1 write_buffer $((BSIZE-1))
+	RUN "F" $1 write_buffer $((BSIZE+1))
+	RUN "F" $1 write_buffer 0
+
+	# basic blockwise functions
+	# device/file fn_name length bsize
+	RUN "P" $1 read_blockwise 0 $BSIZE
+	RUN "P" $1 read_blockwise $((BSIZE)) $BSIZE
+	RUN "P" $1 read_blockwise $((BSIZE-1)) $BSIZE
+	RUN "P" $1 read_blockwise $((BSIZE+1)) $BSIZE
+	RUN "P" $1 read_blockwise $((DEVSIZE)) $BSIZE
+	RUN "P" $1 read_blockwise $((DEVSIZE-1)) $BSIZE
+	RUN "F" $1 read_blockwise $((DEVSIZE+1)) $BSIZE
+
+	RUN "P" $1 write_blockwise 0 $BSIZE
+	RUN "P" $1 write_blockwise $((BSIZE)) $BSIZE
+	RUN "P" $1 write_blockwise $((BSIZE-1)) $BSIZE
+	RUN "P" $1 write_blockwise $((BSIZE+1)) $BSIZE
+	RUN "P" $1 write_blockwise $((DEVSIZE)) $BSIZE
+	RUN "P" $1 write_blockwise $((DEVSIZE-1)) $BSIZE
+	RUN "$BD_FAIL" $1 write_blockwise $((DEVSIZE+1)) $BSIZE
+
+	# seek variant blockwise functions
+	# device/file fn_name length bsize offset
+	RUN "P" $1 read_lseek_blockwise 0 $BSIZE 0
+	RUN "P" $1 read_lseek_blockwise 0 $BSIZE 1
+	RUN "P" $1 read_lseek_blockwise 0 $BSIZE $((DEVSIZE))
+	# length = 0 is significant here
+	RUN "P" $1 read_lseek_blockwise 0 $BSIZE $((DEVSIZE+1))
+
+	# beginning of device
+	RUN "P" $1 read_lseek_blockwise 1 $BSIZE 0
+	RUN "P" $1 read_lseek_blockwise 1 $BSIZE 1
+	RUN "P" $1 read_lseek_blockwise 1 $BSIZE $((BSIZE-1))
+	RUN "P" $1 read_lseek_blockwise 1 $BSIZE $((BSIZE/2))
+
+	# somewhere in the 'middle'
+	RUN "P" $1 read_lseek_blockwise 1 $BSIZE $BSIZE
+	RUN "P" $1 read_lseek_blockwise 1 $BSIZE $((BSIZE+1))
+	RUN "P" $1 read_lseek_blockwise 1 $BSIZE $((2*BSIZE-1))
+	RUN "P" $1 read_lseek_blockwise 1 $BSIZE $((BSIZE+BSIZE/2-1))
+
+	# cross-sector tests
+	RUN "P" $1 read_lseek_blockwise 2 $BSIZE $((BSIZE-1))
+	RUN "P" $1 read_lseek_blockwise $((BSIZE+1)) $BSIZE $((BSIZE-1))
+	RUN "P" $1 read_lseek_blockwise $((BSIZE+2)) $BSIZE $((BSIZE-1))
+	RUN "P" $1 read_lseek_blockwise 2 $BSIZE $((2*BSIZE-1))
+	RUN "P" $1 read_lseek_blockwise $((BSIZE+1)) $BSIZE $((2*BSIZE-1))
+	RUN "P" $1 read_lseek_blockwise $((BSIZE+2)) $BSIZE $((2*BSIZE-1))
+
+	# including one whole sector
+	RUN "P" $1 read_lseek_blockwise $((BSIZE+2)) $BSIZE $((BSIZE))
+	RUN "P" $1 read_lseek_blockwise $((2*BSIZE)) $BSIZE $((BSIZE+1))
+	RUN "P" $1 read_lseek_blockwise $((2*BSIZE)) $BSIZE $((BSIZE-1))
+	RUN "P" $1 read_lseek_blockwise $((BSIZE+2)) $BSIZE $((BSIZE-1))
+	RUN "P" $1 read_lseek_blockwise $((2*BSIZE)) $BSIZE $((BSIZE+1))
+	RUN "P" $1 read_lseek_blockwise $((3*BSIZE-2)) $BSIZE $((BSIZE+1))
+
+	# hiting exactly the sector boundary
+	RUN "P" $1 read_lseek_blockwise $((BSIZE-1)) $BSIZE 1
+	RUN "P" $1 read_lseek_blockwise $((BSIZE-1)) $BSIZE $((BSIZE+1))
+	RUN "P" $1 read_lseek_blockwise $((BSIZE+1)) $BSIZE $((BSIZE-1))
+	RUN "P" $1 read_lseek_blockwise $((BSIZE+1)) $BSIZE $((2*BSIZE-1))
+
+	# device end
+	RUN "P" $1 read_lseek_blockwise 1 $BSIZE $((DEVSIZE-1))
+	RUN "P" $1 read_lseek_blockwise $((BSIZE-1)) $BSIZE $((DEVSIZE-BSIZE+1))
+	RUN "P" $1 read_lseek_blockwise $((BSIZE)) $BSIZE $((DEVSIZE-BSIZE))
+	RUN "P" $1 read_lseek_blockwise $((BSIZE+1)) $BSIZE $((DEVSIZE-BSIZE-1))
+
+	# this must fail on both device and file
+	RUN "F" $1 read_lseek_blockwise 1 $BSIZE $((DEVSIZE))
+	RUN "F" $1 read_lseek_blockwise $((BSIZE-1)) $BSIZE $((DEVSIZE-BSIZE+2))
+	RUN "F" $1 read_lseek_blockwise $((BSIZE)) $BSIZE $((DEVSIZE-BSIZE+1))
+	RUN "F" $1 read_lseek_blockwise $((BSIZE+1)) $BSIZE $((DEVSIZE-BSIZE))
+
+	RUN "P" $1 write_lseek_blockwise 0 $BSIZE 0
+	# TODO: this may pass but must not write a byte (write(0) is undefined).
+	# 	Test it with underlying dm-error or phony read/write syscalls.
+	#	Skipping read is optimization.
+	# HINT: currently it performs useless write and read as well
+	RUN "P" $1 write_lseek_blockwise 0 $BSIZE 1
+	RUN "P" $1 write_lseek_blockwise 0 $BSIZE $BSIZE
+
+	# beginning of device
+	RUN "P" $1 write_lseek_blockwise 1 $BSIZE 0
+	RUN "P" $1 write_lseek_blockwise 1 $BSIZE 1
+	RUN "P" $1 write_lseek_blockwise 1 $BSIZE $((BSIZE-1))
+	RUN "P" $1 write_lseek_blockwise 1 $BSIZE $((BSIZE/2))
+
+	# somewhere in the 'middle'
+	RUN "P" $1 write_lseek_blockwise 1 $BSIZE $BSIZE
+	RUN "P" $1 write_lseek_blockwise 1 $BSIZE $((BSIZE+1))
+	RUN "P" $1 write_lseek_blockwise 1 $BSIZE $((2*BSIZE-1))
+	RUN "P" $1 write_lseek_blockwise 1 $BSIZE $((BSIZE+BSIZE/2-1))
+
+	# cross-sector tests
+	RUN "P" $1 write_lseek_blockwise 2 $BSIZE $((BSIZE-1))
+	RUN "P" $1 write_lseek_blockwise $((BSIZE+1)) $BSIZE $((BSIZE-1))
+	RUN "P" $1 write_lseek_blockwise $((BSIZE+2)) $BSIZE $((BSIZE-1))
+	RUN "P" $1 write_lseek_blockwise 2 $BSIZE $((2*BSIZE-1))
+	RUN "P" $1 write_lseek_blockwise $((BSIZE+1)) $BSIZE $((2*BSIZE-1))
+	RUN "P" $1 write_lseek_blockwise $((BSIZE+2)) $BSIZE $((2*BSIZE-1))
+
+	# including one whole sector
+	RUN "P" $1 write_lseek_blockwise $((BSIZE+2)) $BSIZE $((BSIZE))
+	RUN "P" $1 write_lseek_blockwise $((2*BSIZE)) $BSIZE $((BSIZE+1))
+	RUN "P" $1 write_lseek_blockwise $((2*BSIZE)) $BSIZE $((BSIZE-1))
+	RUN "P" $1 write_lseek_blockwise $((BSIZE+2)) $BSIZE $((BSIZE-1))
+	RUN "P" $1 write_lseek_blockwise $((2*BSIZE)) $BSIZE $((BSIZE+1))
+	RUN "P" $1 write_lseek_blockwise $((3*BSIZE-2)) $BSIZE $((BSIZE+1))
+
+	# hiting exactly the sector boundary
+	RUN "P" $1 write_lseek_blockwise $((BSIZE-1)) $BSIZE 1
+	RUN "P" $1 write_lseek_blockwise $((BSIZE-1)) $BSIZE $((BSIZE+1))
+	RUN "P" $1 write_lseek_blockwise $((BSIZE+1)) $BSIZE $((BSIZE-1))
+	RUN "P" $1 write_lseek_blockwise $((BSIZE+1)) $BSIZE $((2*BSIZE-1))
+
+	# device end
+	RUN "P" $1 write_lseek_blockwise 1 $BSIZE $((DEVSIZE-1))
+	RUN "P" $1 write_lseek_blockwise $((BSIZE-1)) $BSIZE $((DEVSIZE-BSIZE+1))
+	RUN "P" $1 write_lseek_blockwise $((BSIZE)) $BSIZE $((DEVSIZE-BSIZE))
+	RUN "P" $1 write_lseek_blockwise $((BSIZE+1)) $BSIZE $((DEVSIZE-BSIZE-1))
+
+	# this must fail on device, but pass on file (which is unfortunate and maybe design mistake)
+	RUN "$BD_FAIL" $1 write_lseek_blockwise 1 $BSIZE $((DEVSIZE))
+	RUN "$BD_FAIL" $1 write_lseek_blockwise $((BSIZE-1)) $BSIZE $((DEVSIZE-BSIZE+2))
+	RUN "$BD_FAIL" $1 write_lseek_blockwise $((BSIZE)) $BSIZE $((DEVSIZE-BSIZE+1))
+	RUN "$BD_FAIL" $1 write_lseek_blockwise $((BSIZE+1)) $BSIZE $((DEVSIZE-BSIZE))
+}
+
+command -v $STRACE >/dev/null || unset STRACE
+test -x $BW_UNIT || skip "Run \"make `basename $BW_UNIT`\" first"
+
+FAILS=0
+WARNS=0
+DEVSIZEMB=2
+DEVSIZE=$((DEVSIZEMB*1024*1024))
+
+PAGE_SIZE=$(getconf PAGE_SIZE)
+echo "System PAGE_SIZE=$PAGE_SIZE"
+
+echo "Run tests in local filesystem"
+falloc $DEVSIZEMB $LOCAL_FILE || fail "Failed to create file in local filesystem."
+BSIZE=$(stat -c "%o" $LOCAL_FILE)
+if [ $BSIZE -gt $((512*1024)) ]; then
+	echo "Detected file block size: $BSIZE bytes"
+	echo "Tuning it down to system page size ($PAGE_SIZE bytes)"
+	BSIZE=$PAGE_SIZE
+fi
+run_all $LOCAL_FILE
+
+[ $(id -u) -eq 0 ] || {
+	echo "WARNING: You must be root to run remaining tests."
+	test $FAILS -eq 0 || fail "($FAILS wrong result(s) in total)"
+	cleanup
+	exit 0
+}
+
+DEVBSIZE=512
+BSIZE=$DEVBSIZE
+EXP=0
+DEVSIZEMBIMG=32
+
+echo "# Create classic 512B drive"
+echo "# (logical_block_size=$DEVBSIZE, physical_block_size=$((DEVBSIZE*(1<<EXP))))"
+add_device dev_size_mb=$DEVSIZEMB sector_size=$DEVBSIZE physblk_exp=$EXP num_tgts=1
+run_all $DEV
+cleanup
+add_device dev_size_mb=$DEVSIZEMBIMG sector_size=$DEVBSIZE physblk_exp=$EXP num_tgts=1
+run_all_in_fs
+cleanup
+
+EXP=3
+echo "# Create desktop-class 4K drive"
+echo "# (logical_block_size=$DEVBSIZE, physical_block_size=$((DEVBSIZE*(1<<EXP))))"
+add_device dev_size_mb=$DEVSIZEMB physblk_exp=$EXP sector_size=$DEVBSIZE num_tgts=1
+run_all $DEV
+BSIZE=$((DEVBSIZE*(1<<EXP)))
+run_all $DEV
+cleanup
+
+add_device dev_size_mb=$DEVSIZEMBIMG physblk_exp=$EXP sector_size=$DEVBSIZE num_tgts=1
+run_all_in_fs
+cleanup
+
+DEVBSIZE=4096
+BSIZE=$DEVBSIZE
+EXP=0
+echo "# Create enterprise-class 4K drive"
+echo "# (logical_block_size=$DEVBSIZE, physical_block_size=$((DEVBSIZE*(1<<EXP))))"
+add_device dev_size_mb=$DEVSIZEMB physblk_exp=$EXP sector_size=$DEVBSIZE num_tgts=1
+run_all $DEV
+cleanup
+add_device dev_size_mb=$DEVSIZEMBIMG sector_size=$DEVBSIZE physblk_exp=$EXP num_tgts=1
+run_all_in_fs
+cleanup
+
+test $WARNS -eq 0 || echo "(WARNING: $WARNS suspicious result(s) in total)"
+test $FAILS -eq 0 || fail "($FAILS wrong result(s) in total)"