sys-kernel/spl + sys-fs/zfs{,-kmod}: Partial stable /dev/zfs API + backports

This backports various fixes and also implements the partial /dev/zfs
stable API that I have developed at ClusterHQ over the past 14 months.
Ordinarily, I would not commit something like this until it has gone
upstream, but upstream wants review from people in the Illumos project
that prefer to see things like this in production before it reaches them
and it would have likely been deadlocked until I volunteered Gentoo.

I am confident that this is ready for production and I believe Gentoo
benefits from it enough to justify being the first production user.
Unless the API changes under review, situations where the kernel modules
and userland bits fall out of sync will no longer break the boot process
(excluding zfs-share and zfs-zed).  This was the longstanding blocker to
the ebuilds moving from ~arch to arch, so we could finally see that
happen around later this month / early next month.

Package-Manager: portage-2.2.20.1
Signed-off-by: Richard Yao <ryao@gentoo.org>

1 files changed, 207 insertions, 0 deletions

diff --git a/sys-fs/zfs/zfs-0.6.5.3-r1.ebuild b/sys-fs/zfs/zfs-0.6.5.3-r1.ebuild
new file mode 100644
index 000000000000..50ccf062208b
--- /dev/null
+++ b/sys-fs/zfs/zfs-0.6.5.3-r1.ebuild
@@ -0,0 +1,207 @@
+# Copyright 1999-2015 Gentoo Foundation
+# Distributed under the terms of the GNU General Public License v2
+# $Id$
+
+EAPI="5"
+PYTHON_COMPAT=( python{2_7,3_3,3_4,3_5} )
+
+if [ ${PV} == "9999" ] ; then
+	inherit git-r3 linux-mod
+	AUTOTOOLS_AUTORECONF="1"
+	EGIT_REPO_URI="git://github.com/zfsonlinux/${PN}.git"
+else
+	SRC_URI="https://github.com/zfsonlinux/${PN}/releases/download/${P}/${P}.tar.gz
+		https://dev.gentoo.org/~ryao/dist/${P}-patches-p0.tar.xz"
+	KEYWORDS="~amd64 ~arm ~ppc ~ppc64"
+fi
+
+inherit autotools-utils bash-completion-r1 flag-o-matic linux-info python-r1 systemd toolchain-funcs udev
+
+DESCRIPTION="Userland utilities for ZFS Linux kernel module"
+HOMEPAGE="http://zfsonlinux.org/"
+
+LICENSE="BSD-2 CDDL MIT"
+SLOT="0"
+IUSE="custom-cflags debug kernel-builtin +rootfs test-suite static-libs"
+RESTRICT="test"
+
+COMMON_DEPEND="
+	sys-apps/util-linux[static-libs?]
+	sys-libs/zlib[static-libs(+)?]
+	virtual/awk
+"
+DEPEND="${COMMON_DEPEND}
+	virtual/pkgconfig
+"
+
+RDEPEND="${COMMON_DEPEND}
+	!=sys-apps/grep-2.13*
+	!kernel-builtin? ( =sys-fs/zfs-kmod-${PV}* )
+	!sys-fs/zfs-fuse
+	!prefix? ( virtual/udev )
+	test-suite? (
+		sys-apps/util-linux
+		sys-devel/bc
+		sys-block/parted
+		sys-fs/lsscsi
+		sys-fs/mdadm
+		sys-process/procps
+		virtual/modutils
+		)
+	rootfs? (
+		app-arch/cpio
+		app-misc/pax-utils
+		!<sys-boot/grub-2.00-r2:2
+		)
+	!>=sys-fs/udev-init-scripts-28
+"
+
+AT_M4DIR="config"
+AUTOTOOLS_IN_SOURCE_BUILD="1"
+
+pkg_setup() {
+	if use kernel_linux && use test-suite; then
+		linux-info_pkg_setup
+		if  ! linux_config_exists; then
+			ewarn "Cannot check the linux kernel configuration."
+		else
+			# recheck that we don't have usblp to collide with libusb
+			if use test-suite; then
+				if linux_chkconfig_present BLK_DEV_LOOP; then
+					eerror "The ZFS test suite requires loop device support enabled."
+					eerror "Please enable it:"
+					eerror "    CONFIG_BLK_DEV_LOOP=y"
+					eerror "in /usr/src/linux/.config or"
+					eerror "    Device Drivers --->"
+					eerror "        Block devices --->"
+					eerror "            [ ] Loopback device support"
+				fi
+			fi
+		fi
+	fi
+
+}
+
+src_prepare() {
+	if [ ${PV} != "9999" ]
+	then
+		# Apply patch set
+		EPATCH_SUFFIX="patch" \
+		EPATCH_FORCE="yes" \
+		epatch "${WORKDIR}/${P}-patches"
+	fi
+
+	# Update paths
+	sed -e "s|/sbin/lsmod|/bin/lsmod|" \
+		-e "s|/usr/bin/scsi-rescan|/usr/sbin/rescan-scsi-bus|" \
+		-e "s|/sbin/parted|/usr/sbin/parted|" \
+		-i scripts/common.sh.in
+
+	autotools-utils_src_prepare
+}
+
+src_configure() {
+	use custom-cflags || strip-flags
+	local myeconfargs=(
+		--bindir="${EPREFIX}/bin"
+		--sbindir="${EPREFIX}/sbin"
+		--with-config=user
+		--with-dracutdir="/usr/$(get_libdir)/dracut"
+		--with-linux="${KV_DIR}"
+		--with-linux-obj="${KV_OUT_DIR}"
+		--with-udevdir="$(get_udevdir)"
+		--with-blkid
+		$(use_enable debug)
+	)
+	autotools-utils_src_configure
+
+	# prepare systemd unit and helper script
+	cat "${FILESDIR}/zfs.service.in" | \
+		sed -e "s:@sbindir@:${EPREFIX}/sbin:g" \
+			-e "s:@sysconfdir@:${EPREFIX}/etc:g" \
+		> "${T}/zfs.service" || die
+	cat "${FILESDIR}/zfs-init.sh.in" | \
+		sed -e "s:@sbindir@:${EPREFIX}/sbin:g" \
+			-e "s:@sysconfdir@:${EPREFIX}/etc:g" \
+		> "${T}/zfs-init.sh" || die
+}
+
+src_install() {
+	autotools-utils_src_install
+	gen_usr_ldscript -a uutil nvpair zpool zfs zfs_core
+	use test-suite || rm -rf "${ED}usr/share/zfs"
+
+	newbashcomp "${FILESDIR}/bash-completion-r1" zfs
+	bashcomp_alias zfs zpool
+
+	exeinto /usr/libexec
+	doexe "${T}/zfs-init.sh"
+	systemd_dounit "${T}/zfs.service"
+}
+
+pkg_postinst() {
+	if ! use kernel-builtin && [ ${PV} = "9999" ]
+	then
+		einfo "Adding ${P} to the module database to ensure that the"
+		einfo "kernel modules and userland utilities stay in sync."
+		update_moduledb
+	fi
+
+	if [ -e "${EROOT}etc/runlevels/boot/zfs" ]
+	then
+		einfo 'The zfs boot script has been split into the zfs-import,'
+		einfo 'zfs-mount and zfs-share scripts.'
+		einfo
+		einfo 'You had the zfs script in your boot runlevel. For your'
+		einfo 'convenience, it has been automatically removed and the three'
+		einfo 'scripts that replace it have been configured to start.'
+		einfo 'The zfs-import and zfs-mount scripts have been added to the boot'
+		einfo 'runlevel while the zfs-share script is in the default runlevel.'
+
+		rm "${EROOT}etc/runlevels/boot/zfs"
+		ln -snf "${EROOT}etc/init.d/zfs-import" \
+			"${EROOT}etc/runlevels/boot/zfs-import"
+		ln -snf "${EROOT}etc/init.d/zfs-mount" \
+			"${EROOT}etc/runlevels/boot/zfs-mount"
+		ln -snf "${EROOT}etc/init.d/zfs-share" \
+			"${EROOT}etc/runlevels/default/zfs-share"
+	else
+		[ -e "${EROOT}etc/runlevels/boot/zfs-import" ] || \
+			einfo "You should add zfs-import to the boot runlevel."
+		[ -e "${EROOT}etc/runlevels/boot/zfs-mount" ] || \
+			einfo "You should add zfs-mount to the boot runlevel."
+		[ -e "${EROOT}etc/runlevels/default/zfs-share" ] || \
+			einfo "You should add zfs-share to the default runlevel."
+	fi
+
+	if [ -e "${EROOT}etc/runlevels/default/zed" ]
+	then
+		einfo 'The downstream OpenRC zed script has replaced by the upstream'
+		einfo 'OpenRC zfs-zed script.'
+		einfo
+		einfo 'You had the zed script in your default runlevel. For your'
+		einfo 'convenience, it has been automatically removed and the zfs-zed'
+		einfo 'script that replaced it has been configured to start.'
+
+		rm "${EROOT}etc/runlevels/boot/zed"
+		ln -snf "${EROOT}etc/init.d/zfs-sed" \
+			"${EROOT}etc/runlevels/default/zfs-zed"
+	else
+		[ -e "${EROOT}etc/runlevels/default/zfs-zed" ] || \
+			einfo "You should add zfs-zed to the default runlevel."
+	fi
+
+	if [ -e "${EROOT}etc/runlevels/shutdown/zfs-shutdown" ]
+	then
+		einfo "The zfs-shutdown script is obsolete. Removing it from runlevel."
+		rm "${EROOT}etc/runlevels/shutdown/zfs-shutdown"
+	fi
+
+}
+
+pkg_postrm() {
+	if ! use kernel-builtin && [ ${PV} = "9999" ]
+	then
+		remove_moduledb
+	fi
+}