Merge commit 'refs/top-bases/linux-debug-zerocopy' into linux-debug-zerocopy

scripts/common.sh

@@ -0,0 +1,140 @@
+#!/bin/bash
+#
+# A simple script to simply the loading/unloading the ZFS module
+# stack.  It should probably be considered a first step towards
+# a full ZFS init script when that is needed.
+#
+
+. ../.script-config
+PROG="<define PROG>"
+
+VERBOSE=
+DUMP_LOG=
+ERROR=
+MODULES=()
+
+die() {
+	echo -e "${PROG}: $1" >&2
+	exit 1
+}
+
+msg() {
+	if [ ${VERBOSE} ]; then
+		echo "$@"
+	fi
+}
+
+spl_dump_log() {
+        sysctl -w kernel.spl.debug.dump=1 &>/dev/null
+	local NAME=`dmesg | tail -n 1 | cut -f5 -d' '`
+        ${SPLBUILD}/cmd/spl ${NAME} >${NAME}.log
+	echo
+        echo "Dumped debug log: ${NAME}.log"
+        tail -n1 ${NAME}.log
+	echo
+	return 0
+}
+
+check_modules() {
+	local LOADED_MODULES=()
+	local MISSING_MODULES=()
+
+	for MOD in ${MODULES[*]}; do
+		local NAME=`basename $MOD .ko`
+
+		if /sbin/lsmod | egrep -q "^${NAME}"; then
+			LOADED_MODULES=(${NAME} ${LOADED_MODULES[*]})
+		fi
+
+		if [ ! -f ${MOD} ]; then
+			MISSING_MODULES=("\t${MOD}\n" ${MISSING_MODULES[*]})
+		fi
+	done
+
+	if [ ${#LOADED_MODULES[*]} -gt 0 ]; then
+		ERROR="Unload these modules with '${PROG} -u':\n"
+		ERROR="${ERROR}${LOADED_MODULES[*]}"
+		return 1
+	fi
+
+	if [ ${#MISSING_MODULES[*]} -gt 0 ]; then
+		ERROR="The following modules can not be found,"
+		ERROR="${ERROR} ensure your source trees are built:\n"
+		ERROR="${ERROR}${MISSING_MODULES[*]}"
+		return 1
+	fi
+
+	return 0
+}
+
+load_module() {
+	local NAME=`basename $1 .ko`
+
+	if [ ${VERBOSE} ]; then
+		echo "Loading $NAME ($@)"
+	fi
+
+	/sbin/insmod $* || ERROR="Failed to load $1" return 1
+
+	return 0
+}
+
+load_modules() {
+
+	for MOD in ${MODULES[*]}; do
+		local NAME=`basename ${MOD} .ko`
+		local VALUE=
+
+		for OPT in "$@"; do
+			OPT_NAME=`echo ${OPT} | cut -f1 -d'='`
+			
+			if [ ${NAME} = "${OPT_NAME}" ]; then
+				VALUE=`echo ${OPT} | cut -f2- -d'='`
+			fi
+		done
+
+		load_module ${MOD} ${VALUE} || return 1
+	done
+
+	if [ ${VERBOSE} ]; then
+		echo "Successfully loaded ZFS module stack"
+	fi
+
+	return 0
+}
+
+unload_module() {
+	local NAME=`basename $1 .ko`
+
+	if [ ${VERBOSE} ]; then
+		echo "Unloading $NAME ($@)"
+	fi
+
+	/sbin/rmmod $NAME || ERROR="Failed to unload $NAME" return 1
+
+	return 0
+}
+
+unload_modules() {
+	local MODULES_REVERSE=( $(echo ${MODULES[@]} |
+		awk '{for (i=NF;i>=1;i--) printf $i" "} END{print ""}') )
+
+	for MOD in ${MODULES_REVERSE[*]}; do
+		local NAME=`basename ${MOD} .ko`
+
+		if /sbin/lsmod | egrep -q "^${NAME}"; then
+
+			if [ "${DUMP_LOG}" -a ${NAME} = "spl" ]; then
+				spl_dump_log
+			fi
+
+			unload_module ${MOD} || return 1
+		fi
+	done
+
+	if [ ${VERBOSE} ]; then
+		echo "Successfully unloaded ZFS module stack"
+	fi
+
+	return 0
+}

scripts/zfs.sh

@@ -5,19 +5,19 @@
 # a full ZFS init script when that is needed.
 #
 
-prog=zfs.sh
-. ../.script-config
+. ./common.sh
+PROG=zfs.sh
 
 KMOD=/lib/modules/${KERNELSRCVER}/kernel
-kernel_modules=(				\
+KERNEL_MODULES=(				\
 	$KMOD/lib/zlib_deflate/zlib_deflate.ko	\
 )
 
-spl_modules=(					\
+SPL_MODULES=(					\
 	${SPLBUILD}/module/spl/spl.ko		\
 )
 
-zfs_modules=(					\
+ZFS_MODULES=(					\
 	${MODDIR}/avl/zavl.ko			\
 	${MODDIR}/nvpair/znvpair.ko		\
 	${MODDIR}/unicode/zunicode.ko		\
@@ -25,22 +25,12 @@ zfs_modules=(					\
 	${MODDIR}/zfs/zfs.ko			\
 )
 
-test_modules=(					\
-	${MODDIR}/zpios/zpios.ko		\
+MODULES=(					\
+	${KERNEL_MODULES[*]}			\
+	${SPL_MODULES[*]}			\
+	${ZFS_MODULES[*]}			\
 )
 
-modules=(					\
-	${kernel_modules[*]}			\
-	${spl_modules[*]}			\
-	${zfs_modules[*]}			\
-	${test_modules[*]}			\
-)
-
-die() {
-	echo -e "${prog}: $1" >&2
-	exit 1
-}
-
 usage() {
 cat << EOF
 USAGE:
@@ -56,7 +46,7 @@ OPTIONS:
 	-d      Save debug log on unload
 
 MODULE-OPTIONS:
-	Must be of the frm module="options", for example:
+	Must be of the from module="options", for example:
 
 $0 zfs="zfs_prefetch_disable=1"
 $0 zfs="zfs_prefetch_disable=1 zfs_mdcomp_disable=1"
@@ -65,115 +55,7 @@ $0 spl="spl_debug_mask=0"
 EOF
 }
 
-check_modules() {
-	loaded_modules=()
-	missing_modules=()
-
-	for module in ${modules[*]}; do
-		name=`basename $module .ko`
-
-		if /sbin/lsmod | egrep -q "^${name}"; then
-			loaded_modules=(${name} ${loaded_modules[*]})
-		fi
-
-		if [ ! -f $module ]; then
-			missing_modules=("\t${module}\n" ${missing_modules[*]})
-		fi
-	done
-
-	if [ ${#loaded_modules[*]} -gt 0 ]; then
-		error="The following modules must be unloaded, manually run:\n"
-		die "${error}'/sbin/rmmod ${loaded_modules[*]}'"
-	fi
-
-	if [ ${#missing_modules[*]} -gt 0 ]; then
-		error="The following modules can not be found,"
-		error="${error} ensure your source trees are built:\n"
-		die "${error}${missing_modules[*]}"
-	fi
-}
-
-spl_dump_log() {
-        sysctl -w kernel.spl.debug.dump=1 &>/dev/null
-	name=`dmesg | tail -n 1 | cut -f5 -d' '`
-        ${SPLBUILD}/cmd/spl ${name} >${name}.log
-	echo
-        echo "Dumped debug log: ${name}.log"
-        tail -n1 ${name}.log
-	echo
-}
-
-load_module() {
-	name=`basename $module .ko`
-
-	if [ ${verbose} ]; then
-		echo "Loading $name ($@)"
-	fi
-
-	/sbin/insmod $* || die "Failed to load $1"
-}
-
-load_modules() {
-
-	for module in ${modules[*]}; do
-		name=`basename $module .ko`
-		value=
-
-		for opt in "$@"; do
-			opt_name=`echo $opt | cut -f1 -d'='`
-			
-			if [ ${name} = "${opt_name}" ]; then
-				value=`echo $opt | cut -f2- -d'='`
-			fi
-		done
-
-		load_module ${module} ${value}
-	done
-
-	if [ ${verbose} ]; then
-		echo "Successfully loaded ZFS module stack"
-	fi
-}
-
-unload_module() {
-	name=`basename $module .ko`
-
-	if [ ${verbose} ]; then
-		echo "Unloading $name ($@)"
-	fi
-
-	/sbin/rmmod $name || die "Failed to unload $name"
-}
-
-unload_modules() {
-	modules_reverse=( $(echo ${modules[@]} |
-		awk '{for (i=NF;i>=1;i--) printf $i" "} END{print ""}') )
-
-	for module in ${modules_reverse[*]}; do
-		name=`basename $module .ko`
-
-		if /sbin/lsmod | egrep -q "^${name}"; then
-
-			if [ "${dump_log}" -a ${name} = "spl" ]; then
-				spl_dump_log
-			fi
-
-			unload_module ${module}
-		fi
-	done
-
-	if [ ${verbose} ]; then
-		echo "Successfully unloaded ZFS module stack"
-	fi
-}
-
-if [ $(id -u) != 0 ]; then
-	die "Must run as root"
-fi
-
-verbose=
-unload=
-dump_log=
+UNLOAD=
 
 while getopts 'hvud' OPTION; do
 	case $OPTION in
@@ -182,13 +64,13 @@ while getopts 'hvud' OPTION; do
 		exit 1
 		;;
 	v)
-		verbose=1
+		VERBOSE=1
 		;;
 	u)
-		unload=1
+		UNLOAD=1
 		;;
 	d)
-		dump_log=1
+		DUMP_LOG=1
 		;;
 	?)
 		usage
@@ -197,10 +79,14 @@ while getopts 'hvud' OPTION; do
 	esac
 done
 
-if [ ${unload} ]; then
+if [ $(id -u) != 0 ]; then
+	die "Must run as root"
+fi
+
+if [ ${UNLOAD} ]; then
 	unload_modules
 else
-	check_modules
+	check_modules || die "${ERROR}"
 	load_modules "$@"
 fi
 

scripts/zpool-config/lo-raid0.cfg

@@ -0,0 +1,2 @@
+#echo "${CMDDIR}/zpool/zpool create -f lustre ${DEVICES}"
+#${CMDDIR}/zpool/zpool create -f lustre ${DEVICES} || exit 1

scripts/zpool-create.sh

@@ -1,7 +1,7 @@
 #!/bin/bash
 
-prog=create-zpool.sh
-. ../.script-config
+. ./common.sh
+PROG=create-zpool.sh
 
 # Device list, e.g.
 #