Set cmd paths in udev rules using --prefix

The udev/rules.d scripts must use absolute paths to their support
binaries.  However, where those binaries get installed depends
on what --prefix was set to when the package was configured.
This change makes the udev/rules.d helpers to *.in files which
are processed by configure.  This allows them to be dynamically
updated to include the specified --prefix.

Additionally, this change updates 60-zvol.rules to handle both
the 'add' and 'change' actions.  This ensures that that all
valid zvol devices are correctly linked.

etc/udev/rules.d/.gitignore

@@ -0,0 +1,2 @@
+60-zpool.rules
+60-zvol.rules

etc/udev/rules.d/60-zpool.rules.in

@@ -2,7 +2,7 @@
 # /etc/udev/rules.d/99-zpool.rules
 #
 
-ENV{DEVTYPE}=="disk", IMPORT{program}="/usr/bin/zpool_id -d %p"
+ENV{DEVTYPE}=="disk", IMPORT{program}="@prefix@/bin/zpool_id -d %p"
 
 KERNEL=="*[!0-9]", ENV{SUBSYSTEM}=="block", ENV{ID_ZPOOL}=="?*", SYMLINK+="$env{ID_ZPOOL_PATH}"
 KERNEL=="*[0-9]", ENV{SUBSYSTEM}=="block", ENV{ID_ZPOOL}=="?*", SYMLINK+="$env{ID_ZPOOL_PATH}-part%n"

etc/udev/rules.d/60-zvol.rules.in

@@ -3,4 +3,4 @@
 # persistent disk links: /dev/zvol/dataset_name
 # also creates compatibilty symlink of /dev/dataset_name
 
-KERNEL=="zd*" SUBSYSTEM=="block" ACTION=="add" PROGRAM="/usr/bin/zvol_id $tempnode" SYMLINK+="zvol/%c %c"
+KERNEL=="zd*" SUBSYSTEM=="block" ACTION=="add|change" PROGRAM="@prefix@/bin/zvol_id $tempnode" SYMLINK+="zvol/%c %c"

etc/udev/rules.d/Makefile.am

@@ -4,4 +4,7 @@ pkgsysconf_DATA = \
 	60-zpool.rules \
 	60-zvol.rules
 
-EXTRA_DIST = $(pkgsysconf_DATA)
+EXTRA_DIST = 60-zpool.rules.in 60-zvol.rules.in
+
+distclean-local::
+	-$(RM) $(pkgsysconf_DATA)

etc/udev/rules.d/Makefile.in

@@ -36,7 +36,8 @@ build_triplet = @build@
 host_triplet = @host@
 target_triplet = @target@
 subdir = etc/udev/rules.d
-DIST_COMMON = $(srcdir)/Makefile.am $(srcdir)/Makefile.in
+DIST_COMMON = $(srcdir)/60-zpool.rules.in $(srcdir)/60-zvol.rules.in \
+	$(srcdir)/Makefile.am $(srcdir)/Makefile.in
 ACLOCAL_M4 = $(top_srcdir)/aclocal.m4
 am__aclocal_m4_deps =  \
 	$(top_srcdir)/config/kernel-bdev-block-device-operations.m4 \
@@ -56,6 +57,7 @@ am__aclocal_m4_deps =  \
 	$(top_srcdir)/config/kernel-fmode-t.m4 \
 	$(top_srcdir)/config/kernel-fsync.m4 \
 	$(top_srcdir)/config/kernel-get-disk-ro.m4 \
+	$(top_srcdir)/config/kernel-insert-inode-locked.m4 \
 	$(top_srcdir)/config/kernel-invalidate-bdev-args.m4 \
 	$(top_srcdir)/config/kernel-kobj-name-len.m4 \
 	$(top_srcdir)/config/kernel-open-bdev-exclusive.m4 \
@@ -77,7 +79,7 @@ am__configure_deps = $(am__aclocal_m4_deps) $(CONFIGURE_DEPENDENCIES) \
 	$(ACLOCAL_M4)
 mkinstalldirs = $(install_sh) -d
 CONFIG_HEADER = $(top_builddir)/zfs_config.h
-CONFIG_CLEAN_FILES =
+CONFIG_CLEAN_FILES = 60-zpool.rules 60-zvol.rules
 CONFIG_CLEAN_VPATH_FILES =
 AM_V_GEN = $(am__v_GEN_$(V))
 am__v_GEN_ = $(am__v_GEN_$(AM_DEFAULT_VERBOSITY))
@@ -282,7 +284,7 @@ pkgsysconf_DATA = \
 	60-zpool.rules \
 	60-zvol.rules
 
-EXTRA_DIST = $(pkgsysconf_DATA)
+EXTRA_DIST = 60-zpool.rules.in 60-zvol.rules.in
 all: all-am
 
 .SUFFIXES:
@@ -316,6 +318,10 @@ $(top_srcdir)/configure: @MAINTAINER_MODE_TRUE@ $(am__configure_deps)
 $(ACLOCAL_M4): @MAINTAINER_MODE_TRUE@ $(am__aclocal_m4_deps)
 	cd $(top_builddir) && $(MAKE) $(AM_MAKEFLAGS) am--refresh
 $(am__aclocal_m4_deps):
+60-zpool.rules: $(top_builddir)/config.status $(srcdir)/60-zpool.rules.in
+	cd $(top_builddir) && $(SHELL) ./config.status $(subdir)/$@
+60-zvol.rules: $(top_builddir)/config.status $(srcdir)/60-zvol.rules.in
+	cd $(top_builddir) && $(SHELL) ./config.status $(subdir)/$@
 
 mostlyclean-libtool:
 	-rm -f *.lo
@@ -417,7 +423,7 @@ clean-am: clean-generic clean-libtool mostlyclean-am
 
 distclean: distclean-am
 	-rm -f Makefile
-distclean-am: clean-am distclean-generic
+distclean-am: clean-am distclean-generic distclean-local
 
 dvi: dvi-am
 
@@ -480,18 +486,21 @@ uninstall-am: uninstall-pkgsysconfDATA
 .MAKE: install-am install-strip
 
 .PHONY: all all-am check check-am clean clean-generic clean-libtool \
-	distclean distclean-generic distclean-libtool distdir dvi \
-	dvi-am html html-am info info-am install install-am \
-	install-data install-data-am install-dvi install-dvi-am \
-	install-exec install-exec-am install-html install-html-am \
-	install-info install-info-am install-man install-pdf \
-	install-pdf-am install-pkgsysconfDATA install-ps install-ps-am \
-	install-strip installcheck installcheck-am installdirs \
-	maintainer-clean maintainer-clean-generic mostlyclean \
-	mostlyclean-generic mostlyclean-libtool pdf pdf-am ps ps-am \
-	uninstall uninstall-am uninstall-pkgsysconfDATA
+	distclean distclean-generic distclean-libtool distclean-local \
+	distdir dvi dvi-am html html-am info info-am install \
+	install-am install-data install-data-am install-dvi \
+	install-dvi-am install-exec install-exec-am install-html \
+	install-html-am install-info install-info-am install-man \
+	install-pdf install-pdf-am install-pkgsysconfDATA install-ps \
+	install-ps-am install-strip installcheck installcheck-am \
+	installdirs maintainer-clean maintainer-clean-generic \
+	mostlyclean mostlyclean-generic mostlyclean-libtool pdf pdf-am \
+	ps ps-am uninstall uninstall-am uninstall-pkgsysconfDATA
 
 
+distclean-local::
+	-$(RM) $(pkgsysconf_DATA)
+
 # Tell versions [3.59,3.63) of GNU make to not export all variables.
 # Otherwise a system limit (for SysV at least) may be exceeded.
 .NOEXPORT: