Honor --with-mounthelperdir where applicable

Reviewed-by: Brian Behlendorf <behlendorf1@llnl.gov>
Signed-off-by: Giuseppe Di Natale <dinatale2@llnl.gov>
Signed-off-by: loli10K <ezomori.nozomu@gmail.com>
Closes #6962

cmd/mount_zfs/Makefile.am

@@ -7,6 +7,8 @@ DEFAULT_INCLUDES += \
 #
 # Ignore the prefix for the mount helper.  It must be installed in /sbin/
 # because this path is hardcoded in the mount(8) for security reasons.
+# However, if needed, the configure option --with-mounthelperdir= can be used
+# to override the default install location.
 #
 sbindir=$(mounthelperdir)
 sbin_PROGRAMS = mount.zfs

contrib/dracut/90zfs/Makefile.am

@@ -24,6 +24,7 @@ $(pkgdracut_SCRIPTS):%:%.in
 		-e 's,@udevruledir\@,$(udevruledir),g' \
 		-e 's,@sysconfdir\@,$(sysconfdir),g' \
 		-e 's,@systemdunitdir\@,$(systemdunitdir),g' \
+		-e 's,@mounthelperdir\@,$(mounthelperdir),g' \
 		$< >'$@'
 
 distclean-local::

contrib/dracut/90zfs/module-setup.sh.in

@@ -5,7 +5,7 @@ check() {
 	[ "${1}" = "-d" ] && return 0
 
 	# Verify the zfs tool chain
-	for tool in "@sbindir@/zpool" "@sbindir@/zfs" "@sbindir@/mount.zfs" ; do
+	for tool in "@sbindir@/zpool" "@sbindir@/zfs" "@mounthelperdir@/mount.zfs" ; do
 		test -x "$tool" || return 1
 	done
 	# Verify grep exists
@@ -53,7 +53,7 @@ install() {
 		# Fallback: Guess the path and include all matches
 		dracut_install /usr/lib/gcc/*/*/libgcc_s.so*
 	fi
-	dracut_install @sbindir@/mount.zfs
+	dracut_install @mounthelperdir@/mount.zfs
 	dracut_install @udevdir@/vdev_id
 	dracut_install awk
 	dracut_install head

contrib/initramfs/hooks/Makefile.am

@@ -11,6 +11,7 @@ $(hooks_SCRIPTS):%:%.in
 		-e 's,@sysconfdir\@,$(sysconfdir),g' \
 		-e 's,@udevdir\@,$(udevdir),g' \
 		-e 's,@udevruledir\@,$(udevruledir),g' \
+		-e 's,@mounthelperdir\@,$(mounthelperdir),g' \
 		$< >'$@'
 
 clean-local::

contrib/initramfs/hooks/zfs.in

@@ -8,10 +8,8 @@ PREREQ="zdev"
 
 # These prerequisites are provided by the zfsutils package. The zdb utility is
 # not strictly required, but it can be useful at the initramfs recovery prompt.
-# The mount helper mount.zfs must be installed in /sbin because this path is
-# hardcoded in the mount(8) for security reasons.
-COPY_EXEC_LIST="@sbindir@/zdb @sbindir@/zpool @sbindir@/zfs /sbin/mount.zfs"
-COPY_EXEC_LIST="$COPY_EXEC_LIST @udevdir@/vdev_id"
+COPY_EXEC_LIST="@sbindir@/zdb @sbindir@/zpool @sbindir@/zfs"
+COPY_EXEC_LIST="$COPY_EXEC_LIST @mounthelperdir@/mount.zfs @udevdir@/vdev_id"
 COPY_FILE_LIST="/etc/hostid @sysconfdir@/zfs/zpool.cache"
 COPY_FILE_LIST="$COPY_FILE_LIST @sysconfdir@/default/zfs"
 COPY_FILE_LIST="$COPY_FILE_LIST @sysconfdir@/zfs/zfs-functions"