Merge branch 'zpl'

26 files changed, 1126 insertions, 161 deletions

diff --git a/include/Makefile.am b/include/Makefile.am
index 0926c6a69..1d7493bb5 100644
--- a/include/Makefile.am
+++ b/include/Makefile.am
@@ -1,4 +1,4 @@
-SUBDIRS = sys
+SUBDIRS = linux sys
 
 COMMON_H = \
 	$(top_srcdir)/include/zfs_comutil.h \
diff --git a/include/Makefile.in b/include/Makefile.in
index 6821a67fe..f47e747f1 100644
--- a/include/Makefile.in
+++ b/include/Makefile.in
@@ -52,21 +52,24 @@ am__aclocal_m4_deps =  \
 	$(top_srcdir)/config/kernel-blk-rq-bytes.m4 \
 	$(top_srcdir)/config/kernel-blk-rq-pos.m4 \
 	$(top_srcdir)/config/kernel-blk-rq-sectors.m4 \
+	$(top_srcdir)/config/kernel-evict-inode.m4 \
 	$(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-invalidate-bdev-args.m4 \
 	$(top_srcdir)/config/kernel-kobj-name-len.m4 \
 	$(top_srcdir)/config/kernel-open-bdev-exclusive.m4 \
 	$(top_srcdir)/config/kernel-rq-for-each_segment.m4 \
 	$(top_srcdir)/config/kernel-rq-is_sync.m4 \
+	$(top_srcdir)/config/kernel-xattr-handler.m4 \
 	$(top_srcdir)/config/kernel.m4 \
 	$(top_srcdir)/config/user-arch.m4 \
 	$(top_srcdir)/config/user-frame-larger-than.m4 \
 	$(top_srcdir)/config/user-ioctl.m4 \
 	$(top_srcdir)/config/user-libblkid.m4 \
-	$(top_srcdir)/config/user-libshare.m4 \
 	$(top_srcdir)/config/user-libuuid.m4 \
 	$(top_srcdir)/config/user-nptl_guard_within_stack.m4 \
+	$(top_srcdir)/config/user-selinux.m4 \
 	$(top_srcdir)/config/user-zlib.m4 $(top_srcdir)/config/user.m4 \
 	$(top_srcdir)/config/zfs-build.m4 \
 	$(top_srcdir)/config/zfs-meta.m4 $(top_srcdir)/configure.ac
@@ -222,6 +225,7 @@ LDFLAGS = @LDFLAGS@
 LIBBLKID = @LIBBLKID@
 LIBOBJS = @LIBOBJS@
 LIBS = @LIBS@
+LIBSELINUX = @LIBSELINUX@
 LIBTOOL = @LIBTOOL@
 LIBUUID = @LIBUUID@
 LINUX = @LINUX@
@@ -331,7 +335,7 @@ target_vendor = @target_vendor@
 top_build_prefix = @top_build_prefix@
 top_builddir = @top_builddir@
 top_srcdir = @top_srcdir@
-SUBDIRS = sys
+SUBDIRS = linux sys
 COMMON_H = \
 	$(top_srcdir)/include/zfs_comutil.h \
 	$(top_srcdir)/include/zfs_deleg.h \
diff --git a/include/libzfs.h b/include/libzfs.h
index 6752579e8..082b690e9 100644
--- a/include/libzfs.h
+++ b/include/libzfs.h
@@ -673,6 +673,12 @@ extern void zfs_nicenum(uint64_t, char *, size_t);
 extern int zfs_nicestrtonum(libzfs_handle_t *, const char *, uint64_t *);
 
 /*
+ * Utility functions to run an external process.
+ */
+int libzfs_run_process(const char *, char **);
+int libzfs_load_module(const char *);
+
+/*
  * Given a device or file, determine if it is part of a pool.
  */
 extern int zpool_in_use(libzfs_handle_t *, int, pool_state_t *, char **,
diff --git a/include/linux/Makefile.am b/include/linux/Makefile.am
new file mode 100644
index 000000000..0ea6cfeda
--- /dev/null
+++ b/include/linux/Makefile.am
@@ -0,0 +1,20 @@
+COMMON_H =
+
+KERNEL_H = \
+	$(top_srcdir)/include/linux/dcache_compat.h \
+	$(top_srcdir)/include/linux/xattr_compat.h \
+	$(top_srcdir)/include/linux/vfs_compat.h
+
+USER_H =
+
+EXTRA_DIST = $(COMMON_H) $(KERNEL_H) $(USER_H)
+
+if CONFIG_USER
+libzfsdir = $(includedir)/libzfs/linux
+libzfs_HEADERS = $(COMMON_H) $(USER_H)
+endif
+
+if CONFIG_KERNEL
+kerneldir = /usr/src/zfs-$(ZFS_META_VERSION)/$(LINUX_VERSION)/linux
+kernel_HEADERS = $(COMMON_H) $(KERNEL_H)
+endif
diff --git a/include/linux/Makefile.in b/include/linux/Makefile.in
new file mode 100644
index 000000000..e70c16afc
--- /dev/null
+++ b/include/linux/Makefile.in
@@ -0,0 +1,575 @@
+# Makefile.in generated by automake 1.11.1 from Makefile.am.
+# @configure_input@
+
+# Copyright (C) 1994, 1995, 1996, 1997, 1998, 1999, 2000, 2001, 2002,
+# 2003, 2004, 2005, 2006, 2007, 2008, 2009  Free Software Foundation,
+# Inc.
+# This Makefile.in is free software; the Free Software Foundation
+# gives unlimited permission to copy and/or distribute it,
+# with or without modifications, as long as this notice is preserved.
+
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY, to the extent permitted by law; without
+# even the implied warranty of MERCHANTABILITY or FITNESS FOR A
+# PARTICULAR PURPOSE.
+
+@SET_MAKE@
+
+VPATH = @srcdir@
+pkgdatadir = $(datadir)/@PACKAGE@
+pkgincludedir = $(includedir)/@PACKAGE@
+pkglibdir = $(libdir)/@PACKAGE@
+pkglibexecdir = $(libexecdir)/@PACKAGE@
+am__cd = CDPATH="$${ZSH_VERSION+.}$(PATH_SEPARATOR)" && cd
+install_sh_DATA = $(install_sh) -c -m 644
+install_sh_PROGRAM = $(install_sh) -c
+install_sh_SCRIPT = $(install_sh) -c
+INSTALL_HEADER = $(INSTALL_DATA)
+transform = $(program_transform_name)
+NORMAL_INSTALL = :
+PRE_INSTALL = :
+POST_INSTALL = :
+NORMAL_UNINSTALL = :
+PRE_UNINSTALL = :
+POST_UNINSTALL = :
+build_triplet = @build@
+host_triplet = @host@
+target_triplet = @target@
+subdir = include/linux
+DIST_COMMON = $(am__kernel_HEADERS_DIST) $(libzfs_HEADERS) \
+	$(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 \
+	$(top_srcdir)/config/kernel-bdev-logical-size.m4 \
+	$(top_srcdir)/config/kernel-bio-empty-barrier.m4 \
+	$(top_srcdir)/config/kernel-bio-end-io-t-args.m4 \
+	$(top_srcdir)/config/kernel-bio-failfast.m4 \
+	$(top_srcdir)/config/kernel-bio-rw-syncio.m4 \
+	$(top_srcdir)/config/kernel-blk-end-request.m4 \
+	$(top_srcdir)/config/kernel-blk-fetch-request.m4 \
+	$(top_srcdir)/config/kernel-blk-requeue-request.m4 \
+	$(top_srcdir)/config/kernel-blk-rq-bytes.m4 \
+	$(top_srcdir)/config/kernel-blk-rq-pos.m4 \
+	$(top_srcdir)/config/kernel-blk-rq-sectors.m4 \
+	$(top_srcdir)/config/kernel-evict-inode.m4 \
+	$(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-invalidate-bdev-args.m4 \
+	$(top_srcdir)/config/kernel-kobj-name-len.m4 \
+	$(top_srcdir)/config/kernel-open-bdev-exclusive.m4 \
+	$(top_srcdir)/config/kernel-rq-for-each_segment.m4 \
+	$(top_srcdir)/config/kernel-rq-is_sync.m4 \
+	$(top_srcdir)/config/kernel-xattr-handler.m4 \
+	$(top_srcdir)/config/kernel.m4 \
+	$(top_srcdir)/config/user-arch.m4 \
+	$(top_srcdir)/config/user-frame-larger-than.m4 \
+	$(top_srcdir)/config/user-ioctl.m4 \
+	$(top_srcdir)/config/user-libblkid.m4 \
+	$(top_srcdir)/config/user-libuuid.m4 \
+	$(top_srcdir)/config/user-nptl_guard_within_stack.m4 \
+	$(top_srcdir)/config/user-selinux.m4 \
+	$(top_srcdir)/config/user-zlib.m4 $(top_srcdir)/config/user.m4 \
+	$(top_srcdir)/config/zfs-build.m4 \
+	$(top_srcdir)/config/zfs-meta.m4 $(top_srcdir)/configure.ac
+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_VPATH_FILES =
+AM_V_GEN = $(am__v_GEN_$(V))
+am__v_GEN_ = $(am__v_GEN_$(AM_DEFAULT_VERBOSITY))
+am__v_GEN_0 = @echo "  GEN   " $@;
+AM_V_at = $(am__v_at_$(V))
+am__v_at_ = $(am__v_at_$(AM_DEFAULT_VERBOSITY))
+am__v_at_0 = @
+SOURCES =
+DIST_SOURCES =
+am__kernel_HEADERS_DIST = $(top_srcdir)/include/linux/dcache_compat.h \
+	$(top_srcdir)/include/linux/xattr_compat.h \
+	$(top_srcdir)/include/linux/vfs_compat.h
+am__vpath_adj_setup = srcdirstrip=`echo "$(srcdir)" | sed 's|.|.|g'`;
+am__vpath_adj = case $$p in \
+    $(srcdir)/*) f=`echo "$$p" | sed "s|^$$srcdirstrip/||"`;; \
+    *) f=$$p;; \
+  esac;
+am__strip_dir = f=`echo $$p | sed -e 's|^.*/||'`;
+am__install_max = 40
+am__nobase_strip_setup = \
+  srcdirstrip=`echo "$(srcdir)" | sed 's/[].[^$$\\*|]/\\\\&/g'`
+am__nobase_strip = \
+  for p in $$list; do echo "$$p"; done | sed -e "s|$$srcdirstrip/||"
+am__nobase_list = $(am__nobase_strip_setup); \
+  for p in $$list; do echo "$$p $$p"; done | \
+  sed "s| $$srcdirstrip/| |;"' / .*\//!s/ .*/ ./; s,\( .*\)/[^/]*$$,\1,' | \
+  $(AWK) 'BEGIN { files["."] = "" } { files[$$2] = files[$$2] " " $$1; \
+    if (++n[$$2] == $(am__install_max)) \
+      { print $$2, files[$$2]; n[$$2] = 0; files[$$2] = "" } } \
+    END { for (dir in files) print dir, files[dir] }'
+am__base_list = \
+  sed '$$!N;$$!N;$$!N;$$!N;$$!N;$$!N;$$!N;s/\n/ /g' | \
+  sed '$$!N;$$!N;$$!N;$$!N;s/\n/ /g'
+am__installdirs = "$(DESTDIR)$(kerneldir)" "$(DESTDIR)$(libzfsdir)"
+HEADERS = $(kernel_HEADERS) $(libzfs_HEADERS)
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+KERNELCPPFLAGS = @KERNELCPPFLAGS@
+KERNELMAKE_PARAMS = @KERNELMAKE_PARAMS@
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+LIBUUID = @LIBUUID@
+LINUX = @LINUX@
+LINUX_OBJ = @LINUX_OBJ@
+LINUX_SYMBOLS = @LINUX_SYMBOLS@
+LINUX_VERSION = @LINUX_VERSION@
+LIPO = @LIPO@
+LN_S = @LN_S@
+LTLIBOBJS = @LTLIBOBJS@
+MAINT = @MAINT@
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+MKDIR_P = @MKDIR_P@
+NM = @NM@
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+OBJDUMP = @OBJDUMP@
+OBJEXT = @OBJEXT@
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+OTOOL64 = @OTOOL64@
+PACKAGE = @PACKAGE@
+PACKAGE_BUGREPORT = @PACKAGE_BUGREPORT@
+PACKAGE_NAME = @PACKAGE_NAME@
+PACKAGE_STRING = @PACKAGE_STRING@
+PACKAGE_TARNAME = @PACKAGE_TARNAME@
+PACKAGE_VERSION = @PACKAGE_VERSION@
+PATH_SEPARATOR = @PATH_SEPARATOR@
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+STRIP = @STRIP@
+TARGET_ASM_DIR = @TARGET_ASM_DIR@
+VENDOR = @VENDOR@
+VERSION = @VERSION@
+ZFS_CONFIG = @ZFS_CONFIG@
+ZFS_META_ALIAS = @ZFS_META_ALIAS@
+ZFS_META_AUTHOR = @ZFS_META_AUTHOR@
+ZFS_META_DATA = @ZFS_META_DATA@
+ZFS_META_LICENSE = @ZFS_META_LICENSE@
+ZFS_META_LT_AGE = @ZFS_META_LT_AGE@
+ZFS_META_LT_CURRENT = @ZFS_META_LT_CURRENT@
+ZFS_META_LT_REVISION = @ZFS_META_LT_REVISION@
+ZFS_META_NAME = @ZFS_META_NAME@
+ZFS_META_RELEASE = @ZFS_META_RELEASE@
+ZFS_META_VERSION = @ZFS_META_VERSION@
+ZLIB = @ZLIB@
+abs_builddir = @abs_builddir@
+abs_srcdir = @abs_srcdir@
+abs_top_builddir = @abs_top_builddir@
+abs_top_srcdir = @abs_top_srcdir@
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+am__leading_dot = @am__leading_dot@
+am__quote = @am__quote@
+am__tar = @am__tar@
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+build = @build@
+build_alias = @build_alias@
+build_cpu = @build_cpu@
+build_os = @build_os@
+build_vendor = @build_vendor@
+builddir = @builddir@
+datadir = @datadir@
+datarootdir = @datarootdir@
+docdir = @docdir@
+dvidir = @dvidir@
+exec_prefix = @exec_prefix@
+host = @host@
+host_alias = @host_alias@
+host_cpu = @host_cpu@
+host_os = @host_os@
+host_vendor = @host_vendor@
+htmldir = @htmldir@
+includedir = @includedir@
+infodir = @infodir@
+install_sh = @install_sh@
+libdir = @libdir@
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+oldincludedir = @oldincludedir@
+pdfdir = @pdfdir@
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+psdir = @psdir@
+sbindir = @sbindir@
+sharedstatedir = @sharedstatedir@
+srcdir = @srcdir@
+sysconfdir = @sysconfdir@
+target = @target@
+target_alias = @target_alias@
+target_cpu = @target_cpu@
+target_os = @target_os@
+target_vendor = @target_vendor@
+top_build_prefix = @top_build_prefix@
+top_builddir = @top_builddir@
+top_srcdir = @top_srcdir@
+COMMON_H = 
+KERNEL_H = \
+	$(top_srcdir)/include/linux/dcache_compat.h \
+	$(top_srcdir)/include/linux/xattr_compat.h \
+	$(top_srcdir)/include/linux/vfs_compat.h
+
+USER_H = 
+EXTRA_DIST = $(COMMON_H) $(KERNEL_H) $(USER_H)
+@CONFIG_USER_TRUE@libzfsdir = $(includedir)/libzfs/linux
+@CONFIG_USER_TRUE@libzfs_HEADERS = $(COMMON_H) $(USER_H)
+@CONFIG_KERNEL_TRUE@kerneldir = /usr/src/zfs-$(ZFS_META_VERSION)/$(LINUX_VERSION)/linux
+@CONFIG_KERNEL_TRUE@kernel_HEADERS = $(COMMON_H) $(KERNEL_H)
+all: all-am
+
+.SUFFIXES:
+$(srcdir)/Makefile.in: @MAINTAINER_MODE_TRUE@ $(srcdir)/Makefile.am  $(am__configure_deps)
+	@for dep in $?; do \
+	  case '$(am__configure_deps)' in \
+	    *$$dep*) \
+	      ( cd $(top_builddir) && $(MAKE) $(AM_MAKEFLAGS) am--refresh ) \
+	        && { if test -f $@; then exit 0; else break; fi; }; \
+	      exit 1;; \
+	  esac; \
+	done; \
+	echo ' cd $(top_srcdir) && $(AUTOMAKE) --gnu include/linux/Makefile'; \
+	$(am__cd) $(top_srcdir) && \
+	  $(AUTOMAKE) --gnu include/linux/Makefile
+.PRECIOUS: Makefile
+Makefile: $(srcdir)/Makefile.in $(top_builddir)/config.status
+	@case '$?' in \
+	  *config.status*) \
+	    cd $(top_builddir) && $(MAKE) $(AM_MAKEFLAGS) am--refresh;; \
+	  *) \
+	    echo ' cd $(top_builddir) && $(SHELL) ./config.status $(subdir)/$@ $(am__depfiles_maybe)'; \
+	    cd $(top_builddir) && $(SHELL) ./config.status $(subdir)/$@ $(am__depfiles_maybe);; \
+	esac;
+
+$(top_builddir)/config.status: $(top_srcdir)/configure $(CONFIG_STATUS_DEPENDENCIES)
+	cd $(top_builddir) && $(MAKE) $(AM_MAKEFLAGS) am--refresh
+
+$(top_srcdir)/configure: @MAINTAINER_MODE_TRUE@ $(am__configure_deps)
+	cd $(top_builddir) && $(MAKE) $(AM_MAKEFLAGS) am--refresh
+$(ACLOCAL_M4): @MAINTAINER_MODE_TRUE@ $(am__aclocal_m4_deps)
+	cd $(top_builddir) && $(MAKE) $(AM_MAKEFLAGS) am--refresh
+$(am__aclocal_m4_deps):
+
+mostlyclean-libtool:
+	-rm -f *.lo
+
+clean-libtool:
+	-rm -rf .libs _libs
+install-kernelHEADERS: $(kernel_HEADERS)
+	@$(NORMAL_INSTALL)
+	test -z "$(kerneldir)" || $(MKDIR_P) "$(DESTDIR)$(kerneldir)"
+	@list='$(kernel_HEADERS)'; test -n "$(kerneldir)" || list=; \
+	for p in $$list; do \
+	  if test -f "$$p"; then d=; else d="$(srcdir)/"; fi; \
+	  echo "$$d$$p"; \
+	done | $(am__base_list) | \
+	while read files; do \
+	  echo " $(INSTALL_HEADER) $$files '$(DESTDIR)$(kerneldir)'"; \
+	  $(INSTALL_HEADER) $$files "$(DESTDIR)$(kerneldir)" || exit $$?; \
+	done
+
+uninstall-kernelHEADERS:
+	@$(NORMAL_UNINSTALL)
+	@list='$(kernel_HEADERS)'; test -n "$(kerneldir)" || list=; \
+	files=`for p in $$list; do echo $$p; done | sed -e 's|^.*/||'`; \
+	test -n "$$files" || exit 0; \
+	echo " ( cd '$(DESTDIR)$(kerneldir)' && rm -f" $$files ")"; \
+	cd "$(DESTDIR)$(kerneldir)" && rm -f $$files
+install-libzfsHEADERS: $(libzfs_HEADERS)
+	@$(NORMAL_INSTALL)
+	test -z "$(libzfsdir)" || $(MKDIR_P) "$(DESTDIR)$(libzfsdir)"
+	@list='$(libzfs_HEADERS)'; test -n "$(libzfsdir)" || list=; \
+	for p in $$list; do \
+	  if test -f "$$p"; then d=; else d="$(srcdir)/"; fi; \
+	  echo "$$d$$p"; \
+	done | $(am__base_list) | \
+	while read files; do \
+	  echo " $(INSTALL_HEADER) $$files '$(DESTDIR)$(libzfsdir)'"; \
+	  $(INSTALL_HEADER) $$files "$(DESTDIR)$(libzfsdir)" || exit $$?; \
+	done
+
+uninstall-libzfsHEADERS:
+	@$(NORMAL_UNINSTALL)
+	@list='$(libzfs_HEADERS)'; test -n "$(libzfsdir)" || list=; \
+	files=`for p in $$list; do echo $$p; done | sed -e 's|^.*/||'`; \
+	test -n "$$files" || exit 0; \
+	echo " ( cd '$(DESTDIR)$(libzfsdir)' && rm -f" $$files ")"; \
+	cd "$(DESTDIR)$(libzfsdir)" && rm -f $$files
+
+ID: $(HEADERS) $(SOURCES) $(LISP) $(TAGS_FILES)
+	list='$(SOURCES) $(HEADERS) $(LISP) $(TAGS_FILES)'; \
+	unique=`for i in $$list; do \
+	    if test -f "$$i"; then echo $$i; else echo $(srcdir)/$$i; fi; \
+	  done | \
+	  $(AWK) '{ files[$$0] = 1; nonempty = 1; } \
+	      END { if (nonempty) { for (i in files) print i; }; }'`; \
+	mkid -fID $$unique
+tags: TAGS
+
+TAGS:  $(HEADERS) $(SOURCES)  $(TAGS_DEPENDENCIES) \
+		$(TAGS_FILES) $(LISP)
+	set x; \
+	here=`pwd`; \
+	list='$(SOURCES) $(HEADERS)  $(LISP) $(TAGS_FILES)'; \
+	unique=`for i in $$list; do \
+	    if test -f "$$i"; then echo $$i; else echo $(srcdir)/$$i; fi; \
+	  done | \
+	  $(AWK) '{ files[$$0] = 1; nonempty = 1; } \
+	      END { if (nonempty) { for (i in files) print i; }; }'`; \
+	shift; \
+	if test -z "$(ETAGS_ARGS)$$*$$unique"; then :; else \
+	  test -n "$$unique" || unique=$$empty_fix; \
+	  if test $$# -gt 0; then \
+	    $(ETAGS) $(ETAGSFLAGS) $(AM_ETAGSFLAGS) $(ETAGS_ARGS) \
+	      "$$@" $$unique; \
+	  else \
+	    $(ETAGS) $(ETAGSFLAGS) $(AM_ETAGSFLAGS) $(ETAGS_ARGS) \
+	      $$unique; \
+	  fi; \
+	fi
+ctags: CTAGS
+CTAGS:  $(HEADERS) $(SOURCES)  $(TAGS_DEPENDENCIES) \
+		$(TAGS_FILES) $(LISP)
+	list='$(SOURCES) $(HEADERS)  $(LISP) $(TAGS_FILES)'; \
+	unique=`for i in $$list; do \
+	    if test -f "$$i"; then echo $$i; else echo $(srcdir)/$$i; fi; \
+	  done | \
+	  $(AWK) '{ files[$$0] = 1; nonempty = 1; } \
+	      END { if (nonempty) { for (i in files) print i; }; }'`; \
+	test -z "$(CTAGS_ARGS)$$unique" \
+	  || $(CTAGS) $(CTAGSFLAGS) $(AM_CTAGSFLAGS) $(CTAGS_ARGS) \
+	     $$unique
+
+GTAGS:
+	here=`$(am__cd) $(top_builddir) && pwd` \
+	  && $(am__cd) $(top_srcdir) \
+	  && gtags -i $(GTAGS_ARGS) "$$here"
+
+distclean-tags:
+	-rm -f TAGS ID GTAGS GRTAGS GSYMS GPATH tags
+
+distdir: $(DISTFILES)
+	@srcdirstrip=`echo "$(srcdir)" | sed 's/[].[^$$\\*]/\\\\&/g'`; \
+	topsrcdirstrip=`echo "$(top_srcdir)" | sed 's/[].[^$$\\*]/\\\\&/g'`; \
+	list='$(DISTFILES)'; \
+	  dist_files=`for file in $$list; do echo $$file; done | \
+	  sed -e "s|^$$srcdirstrip/||;t" \
+	      -e "s|^$$topsrcdirstrip/|$(top_builddir)/|;t"`; \
+	case $$dist_files in \
+	  */*) $(MKDIR_P) `echo "$$dist_files" | \
+			   sed '/\//!d;s|^|$(distdir)/|;s,/[^/]*$$,,' | \
+			   sort -u` ;; \
+	esac; \
+	for file in $$dist_files; do \
+	  if test -f $$file || test -d $$file; then d=.; else d=$(srcdir); fi; \
+	  if test -d $$d/$$file; then \
+	    dir=`echo "/$$file" | sed -e 's,/[^/]*$$,,'`; \
+	    if test -d "$(distdir)/$$file"; then \
+	      find "$(distdir)/$$file" -type d ! -perm -700 -exec chmod u+rwx {} \;; \
+	    fi; \
+	    if test -d $(srcdir)/$$file && test $$d != $(srcdir); then \
+	      cp -fpR $(srcdir)/$$file "$(distdir)$$dir" || exit 1; \
+	      find "$(distdir)/$$file" -type d ! -perm -700 -exec chmod u+rwx {} \;; \
+	    fi; \
+	    cp -fpR $$d/$$file "$(distdir)$$dir" || exit 1; \
+	  else \
+	    test -f "$(distdir)/$$file" \
+	    || cp -p $$d/$$file "$(distdir)/$$file" \
+	    || exit 1; \
+	  fi; \
+	done
+check-am: all-am
+check: check-am
+all-am: Makefile $(HEADERS)
+installdirs:
+	for dir in "$(DESTDIR)$(kerneldir)" "$(DESTDIR)$(libzfsdir)"; do \
+	  test -z "$$dir" || $(MKDIR_P) "$$dir"; \
+	done
+install: install-am
+install-exec: install-exec-am
+install-data: install-data-am
+uninstall: uninstall-am
+
+install-am: all-am
+	@$(MAKE) $(AM_MAKEFLAGS) install-exec-am install-data-am
+
+installcheck: installcheck-am
+install-strip:
+	$(MAKE) $(AM_MAKEFLAGS) INSTALL_PROGRAM="$(INSTALL_STRIP_PROGRAM)" \
+	  install_sh_PROGRAM="$(INSTALL_STRIP_PROGRAM)" INSTALL_STRIP_FLAG=-s \
+	  `test -z '$(STRIP)' || \
+	    echo "INSTALL_PROGRAM_ENV=STRIPPROG='$(STRIP)'"` install
+mostlyclean-generic:
+
+clean-generic:
+
+distclean-generic:
+	-test -z "$(CONFIG_CLEAN_FILES)" || rm -f $(CONFIG_CLEAN_FILES)
+	-test . = "$(srcdir)" || test -z "$(CONFIG_CLEAN_VPATH_FILES)" || rm -f $(CONFIG_CLEAN_VPATH_FILES)
+
+maintainer-clean-generic:
+	@echo "This command is intended for maintainers to use"
+	@echo "it deletes files that may require special tools to rebuild."
+clean: clean-am
+
+clean-am: clean-generic clean-libtool mostlyclean-am
+
+distclean: distclean-am
+	-rm -f Makefile
+distclean-am: clean-am distclean-generic distclean-tags
+
+dvi: dvi-am
+
+dvi-am:
+
+html: html-am
+
+html-am:
+
+info: info-am
+
+info-am:
+
+install-data-am: install-kernelHEADERS install-libzfsHEADERS
+
+install-dvi: install-dvi-am
+
+install-dvi-am:
+
+install-exec-am:
+
+install-html: install-html-am
+
+install-html-am:
+
+install-info: install-info-am
+
+install-info-am:
+
+install-man:
+
+install-pdf: install-pdf-am
+
+install-pdf-am:
+
+install-ps: install-ps-am
+
+install-ps-am:
+
+installcheck-am:
+
+maintainer-clean: maintainer-clean-am
+	-rm -f Makefile
+maintainer-clean-am: distclean-am maintainer-clean-generic
+
+mostlyclean: mostlyclean-am
+
+mostlyclean-am: mostlyclean-generic mostlyclean-libtool
+
+pdf: pdf-am
+
+pdf-am:
+
+ps: ps-am
+
+ps-am:
+
+uninstall-am: uninstall-kernelHEADERS uninstall-libzfsHEADERS
+
+.MAKE: install-am install-strip
+
+.PHONY: CTAGS GTAGS all all-am check check-am clean clean-generic \
+	clean-libtool ctags distclean distclean-generic \
+	distclean-libtool distclean-tags 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-kernelHEADERS install-libzfsHEADERS \
+	install-man install-pdf install-pdf-am 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 tags uninstall uninstall-am uninstall-kernelHEADERS \
+	uninstall-libzfsHEADERS
+
+
+# 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:
diff --git a/include/linux/dcache_compat.h b/include/linux/dcache_compat.h
new file mode 100644
index 000000000..a624d4dd9
--- /dev/null
+++ b/include/linux/dcache_compat.h
@@ -0,0 +1,33 @@
+/*
+ * CDDL HEADER START
+ *
+ * The contents of this file are subject to the terms of the
+ * Common Development and Distribution License (the "License").
+ * You may not use this file except in compliance with the License.
+ *
+ * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
+ * or http://www.opensolaris.org/os/licensing.
+ * See the License for the specific language governing permissions
+ * and limitations under the License.
+ *
+ * When distributing Covered Code, include this CDDL HEADER in each
+ * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
+ * If applicable, add the following below this CDDL HEADER, with the
+ * fields enclosed by brackets "[]" replaced with your own identifying
+ * information: Portions Copyright [yyyy] [name of copyright owner]
+ *
+ * CDDL HEADER END
+ */
+
+/*
+ * Copyright (C) 2011 Lawrence Livermore National Security, LLC.
+ */
+
+#ifndef _ZFS_DCACHE_H
+#define _ZFS_DCACHE_H
+
+#include <linux/dcache.h>
+
+#define dname(dentry)	((char *)((dentry)->d_name.name))
+
+#endif /* _ZFS_DCACHE_H */
diff --git a/include/linux/vfs_compat.h b/include/linux/vfs_compat.h
new file mode 100644
index 000000000..bbc23a962
--- /dev/null
+++ b/include/linux/vfs_compat.h
@@ -0,0 +1,42 @@
+/*
+ * CDDL HEADER START
+ *
+ * The contents of this file are subject to the terms of the
+ * Common Development and Distribution License (the "License").
+ * You may not use this file except in compliance with the License.
+ *
+ * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
+ * or http://www.opensolaris.org/os/licensing.
+ * See the License for the specific language governing permissions
+ * and limitations under the License.
+ *
+ * When distributing Covered Code, include this CDDL HEADER in each
+ * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
+ * If applicable, add the following below this CDDL HEADER, with the
+ * fields enclosed by brackets "[]" replaced with your own identifying
+ * information: Portions Copyright [yyyy] [name of copyright owner]
+ *
+ * CDDL HEADER END
+ */
+
+/*
+ * Copyright (C) 2011 Lawrence Livermore National Security, LLC.
+ */
+
+#ifndef _ZFS_VFS_H
+#define _ZFS_VFS_H
+
+/*
+ * 2.6.35 API change,
+ * The dentry argument to the .fsync() vfs hook was deemed unused by
+ * all filesystem consumers and dropped.  Add a compatibility prototype
+ * to ensure correct usage when defining this callback.
+ */
+#ifdef HAVE_2ARGS_FSYNC
+#define ZPL_FSYNC_PROTO(fn, x, y, z)	static int fn(struct file *x, int z)
+#else
+#define ZPL_FSYNC_PROTO(fn, x, y, z)	static int fn(struct file *x, \
+						      struct dentry *y, int z)
+#endif
+
+#endif /* _ZFS_VFS_H */
diff --git a/include/linux/xattr_compat.h b/include/linux/xattr_compat.h
new file mode 100644
index 000000000..9878aab72
--- /dev/null
+++ b/include/linux/xattr_compat.h
@@ -0,0 +1,87 @@
+/*
+ * CDDL HEADER START
+ *
+ * The contents of this file are subject to the terms of the
+ * Common Development and Distribution License (the "License").
+ * You may not use this file except in compliance with the License.
+ *
+ * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
+ * or http://www.opensolaris.org/os/licensing.
+ * See the License for the specific language governing permissions
+ * and limitations under the License.
+ *
+ * When distributing Covered Code, include this CDDL HEADER in each
+ * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
+ * If applicable, add the following below this CDDL HEADER, with the
+ * fields enclosed by brackets "[]" replaced with your own identifying
+ * information: Portions Copyright [yyyy] [name of copyright owner]
+ *
+ * CDDL HEADER END
+ */
+
+/*
+ * Copyright (C) 2011 Lawrence Livermore National Security, LLC.
+ */
+
+#ifndef _ZFS_XATTR_H
+#define _ZFS_XATTR_H
+
+/*
+ * 2.6.35 API change,
+ * The const keyword was added to the 'struct xattr_handler' in the
+ * generic Linux super_block structure.  To handle this we define an
+ * appropriate xattr_handler_t typedef which can be used.  This was
+ * the preferred solution because it keeps the code clean and readable.
+ */
+#ifdef HAVE_CONST_XATTR_HANDLER
+typedef const struct xattr_handler	xattr_handler_t;
+#else
+typedef struct xattr_handler		xattr_handler_t;
+#endif
+
+/*
+ * 2.6.33 API change,
+ * The xattr_hander->get() callback was changed to take a dentry
+ * instead of an inode, and a handler_flags argument was added.
+ */
+#ifdef HAVE_DENTRY_XATTR_GET
+#define ZPL_XATTR_GET_WRAPPER(fn)					\
+static int								\
+fn(struct dentry *dentry, const char *name, void *buffer, size_t size,	\
+    int unused_handler_flags)						\
+{									\
+	return __ ## fn(dentry->d_inode, name, buffer, size);		\
+}
+#else
+#define ZPL_XATTR_GET_WRAPPER(fn)					\
+static int								\
+fn(struct inode *ip, const char *name, void *buffer, size_t size)	\
+{									\
+	return __ ## fn(ip, name, buffer, size);			\
+}
+#endif /* HAVE_DENTRY_XATTR_GET */
+
+/*
+ * 2.6.33 API change,
+ * The xattr_hander->set() callback was changed to take a dentry
+ * instead of an inode, and a handler_flags argument was added.
+ */
+#ifdef HAVE_DENTRY_XATTR_SET
+#define ZPL_XATTR_SET_WRAPPER(fn)					\
+static int								\
+fn(struct dentry *dentry, const char *name, const void *buffer,		\
+    size_t size, int flags, int unused_handler_flags)			\
+{									\
+	return __ ## fn(dentry->d_inode, name, buffer, size, flags);	\
+}
+#else
+#define ZPL_XATTR_SET_WRAPPER(fn)					\
+static int								\
+fn(struct inode *ip, const char *name, const void *buffer,		\
+    size_t size, int flags)						\
+{									\
+	return __ ## fn(ip, name, buffer, size, flags);			\
+}
+#endif /* HAVE_DENTRY_XATTR_SET */
+
+#endif /* _ZFS_XATTR_H */
diff --git a/include/sys/Makefile.am b/include/sys/Makefile.am
index 59e137104..bde71b75e 100644
--- a/include/sys/Makefile.am
+++ b/include/sys/Makefile.am
@@ -42,6 +42,7 @@ COMMON_H = \
 	$(top_srcdir)/include/sys/u8_textprep.h \
 	$(top_srcdir)/include/sys/uberblock.h \
 	$(top_srcdir)/include/sys/uberblock_impl.h \
+	$(top_srcdir)/include/sys/uio_impl.h \
 	$(top_srcdir)/include/sys/unique.h \
 	$(top_srcdir)/include/sys/uuid.h \
 	$(top_srcdir)/include/sys/vdev_disk.h \
@@ -53,7 +54,6 @@ COMMON_H = \
 	$(top_srcdir)/include/sys/zap_leaf.h \
 	$(top_srcdir)/include/sys/zfs_acl.h \
 	$(top_srcdir)/include/sys/zfs_context.h \
-	$(top_srcdir)/include/sys/zfs_ctldir.h \
 	$(top_srcdir)/include/sys/zfs_debug.h \
 	$(top_srcdir)/include/sys/zfs_dir.h \
 	$(top_srcdir)/include/sys/zfs_fuid.h \
@@ -62,6 +62,7 @@ COMMON_H = \
 	$(top_srcdir)/include/sys/zfs_stat.h \
 	$(top_srcdir)/include/sys/zfs_vfsops.h \
 	$(top_srcdir)/include/sys/zfs_znode.h \
+	$(top_srcdir)/include/sys/zfs_vnops.h \
 	$(top_srcdir)/include/sys/zil.h \
 	$(top_srcdir)/include/sys/zil_impl.h \
 	$(top_srcdir)/include/sys/zio_checksum.h \
@@ -74,6 +75,7 @@ KERNEL_H = \
 	$(top_srcdir)/include/sys/blkdev.h \
 	$(top_srcdir)/include/sys/zfs_ioctl.h \
 	$(top_srcdir)/include/sys/zfs_onexit.h \
+	${top_srcdir}/include/sys/zpl.h \
 	$(top_srcdir)/include/sys/zvol.h
 
 USER_H =
diff --git a/include/sys/Makefile.in b/include/sys/Makefile.in
index 8964aae41..37339e255 100644
--- a/include/sys/Makefile.in
+++ b/include/sys/Makefile.in
@@ -52,21 +52,24 @@ am__aclocal_m4_deps =  \
 	$(top_srcdir)/config/kernel-blk-rq-bytes.m4 \
 	$(top_srcdir)/config/kernel-blk-rq-pos.m4 \
 	$(top_srcdir)/config/kernel-blk-rq-sectors.m4 \
+	$(top_srcdir)/config/kernel-evict-inode.m4 \
 	$(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-invalidate-bdev-args.m4 \
 	$(top_srcdir)/config/kernel-kobj-name-len.m4 \
 	$(top_srcdir)/config/kernel-open-bdev-exclusive.m4 \
 	$(top_srcdir)/config/kernel-rq-for-each_segment.m4 \
 	$(top_srcdir)/config/kernel-rq-is_sync.m4 \
+	$(top_srcdir)/config/kernel-xattr-handler.m4 \
 	$(top_srcdir)/config/kernel.m4 \
 	$(top_srcdir)/config/user-arch.m4 \
 	$(top_srcdir)/config/user-frame-larger-than.m4 \
 	$(top_srcdir)/config/user-ioctl.m4 \
 	$(top_srcdir)/config/user-libblkid.m4 \
-	$(top_srcdir)/config/user-libshare.m4 \
 	$(top_srcdir)/config/user-libuuid.m4 \
 	$(top_srcdir)/config/user-nptl_guard_within_stack.m4 \
+	$(top_srcdir)/config/user-selinux.m4 \
 	$(top_srcdir)/config/user-zlib.m4 $(top_srcdir)/config/user.m4 \
 	$(top_srcdir)/config/zfs-build.m4 \
 	$(top_srcdir)/config/zfs-meta.m4 $(top_srcdir)/configure.ac
@@ -132,6 +135,7 @@ am__kernel_HEADERS_DIST = $(top_srcdir)/include/sys/arc.h \
 	$(top_srcdir)/include/sys/u8_textprep.h \
 	$(top_srcdir)/include/sys/uberblock.h \
 	$(top_srcdir)/include/sys/uberblock_impl.h \
+	$(top_srcdir)/include/sys/uio_impl.h \
 	$(top_srcdir)/include/sys/unique.h \
 	$(top_srcdir)/include/sys/uuid.h \
 	$(top_srcdir)/include/sys/vdev_disk.h \
@@ -143,7 +147,6 @@ am__kernel_HEADERS_DIST = $(top_srcdir)/include/sys/arc.h \
 	$(top_srcdir)/include/sys/zap_leaf.h \
 	$(top_srcdir)/include/sys/zfs_acl.h \
 	$(top_srcdir)/include/sys/zfs_context.h \
-	$(top_srcdir)/include/sys/zfs_ctldir.h \
 	$(top_srcdir)/include/sys/zfs_debug.h \
 	$(top_srcdir)/include/sys/zfs_dir.h \
 	$(top_srcdir)/include/sys/zfs_fuid.h \
@@ -152,6 +155,7 @@ am__kernel_HEADERS_DIST = $(top_srcdir)/include/sys/arc.h \
 	$(top_srcdir)/include/sys/zfs_stat.h \
 	$(top_srcdir)/include/sys/zfs_vfsops.h \
 	$(top_srcdir)/include/sys/zfs_znode.h \
+	$(top_srcdir)/include/sys/zfs_vnops.h \
 	$(top_srcdir)/include/sys/zil.h \
 	$(top_srcdir)/include/sys/zil_impl.h \
 	$(top_srcdir)/include/sys/zio_checksum.h \
@@ -162,6 +166,7 @@ am__kernel_HEADERS_DIST = $(top_srcdir)/include/sys/arc.h \
 	$(top_srcdir)/include/sys/blkdev.h \
 	$(top_srcdir)/include/sys/zfs_ioctl.h \
 	$(top_srcdir)/include/sys/zfs_onexit.h \
+	${top_srcdir}/include/sys/zpl.h \
 	$(top_srcdir)/include/sys/zvol.h
 am__vpath_adj_setup = srcdirstrip=`echo "$(srcdir)" | sed 's|.|.|g'`;
 am__vpath_adj = case $$p in \
@@ -226,6 +231,7 @@ am__libzfs_HEADERS_DIST = $(top_srcdir)/include/sys/arc.h \
 	$(top_srcdir)/include/sys/u8_textprep.h \
 	$(top_srcdir)/include/sys/uberblock.h \
 	$(top_srcdir)/include/sys/uberblock_impl.h \
+	$(top_srcdir)/include/sys/uio_impl.h \
 	$(top_srcdir)/include/sys/unique.h \
 	$(top_srcdir)/include/sys/uuid.h \
 	$(top_srcdir)/include/sys/vdev_disk.h \
@@ -237,7 +243,6 @@ am__libzfs_HEADERS_DIST = $(top_srcdir)/include/sys/arc.h \
 	$(top_srcdir)/include/sys/zap_leaf.h \
 	$(top_srcdir)/include/sys/zfs_acl.h \
 	$(top_srcdir)/include/sys/zfs_context.h \
-	$(top_srcdir)/include/sys/zfs_ctldir.h \
 	$(top_srcdir)/include/sys/zfs_debug.h \
 	$(top_srcdir)/include/sys/zfs_dir.h \
 	$(top_srcdir)/include/sys/zfs_fuid.h \
@@ -246,6 +251,7 @@ am__libzfs_HEADERS_DIST = $(top_srcdir)/include/sys/arc.h \
 	$(top_srcdir)/include/sys/zfs_stat.h \
 	$(top_srcdir)/include/sys/zfs_vfsops.h \
 	$(top_srcdir)/include/sys/zfs_znode.h \
+	$(top_srcdir)/include/sys/zfs_vnops.h \
 	$(top_srcdir)/include/sys/zil.h \
 	$(top_srcdir)/include/sys/zil_impl.h \
 	$(top_srcdir)/include/sys/zio_checksum.h \
@@ -343,6 +349,7 @@ LDFLAGS = @LDFLAGS@
 LIBBLKID = @LIBBLKID@
 LIBOBJS = @LIBOBJS@
 LIBS = @LIBS@
+LIBSELINUX = @LIBSELINUX@
 LIBTOOL = @LIBTOOL@
 LIBUUID = @LIBUUID@
 LINUX = @LINUX@
@@ -495,6 +502,7 @@ COMMON_H = \
 	$(top_srcdir)/include/sys/u8_textprep.h \
 	$(top_srcdir)/include/sys/uberblock.h \
 	$(top_srcdir)/include/sys/uberblock_impl.h \
+	$(top_srcdir)/include/sys/uio_impl.h \
 	$(top_srcdir)/include/sys/unique.h \
 	$(top_srcdir)/include/sys/uuid.h \
 	$(top_srcdir)/include/sys/vdev_disk.h \
@@ -506,7 +514,6 @@ COMMON_H = \
 	$(top_srcdir)/include/sys/zap_leaf.h \
 	$(top_srcdir)/include/sys/zfs_acl.h \
 	$(top_srcdir)/include/sys/zfs_context.h \
-	$(top_srcdir)/include/sys/zfs_ctldir.h \
 	$(top_srcdir)/include/sys/zfs_debug.h \
 	$(top_srcdir)/include/sys/zfs_dir.h \
 	$(top_srcdir)/include/sys/zfs_fuid.h \
@@ -515,6 +522,7 @@ COMMON_H = \
 	$(top_srcdir)/include/sys/zfs_stat.h \
 	$(top_srcdir)/include/sys/zfs_vfsops.h \
 	$(top_srcdir)/include/sys/zfs_znode.h \
+	$(top_srcdir)/include/sys/zfs_vnops.h \
 	$(top_srcdir)/include/sys/zil.h \
 	$(top_srcdir)/include/sys/zil_impl.h \
 	$(top_srcdir)/include/sys/zio_checksum.h \
@@ -527,6 +535,7 @@ KERNEL_H = \
 	$(top_srcdir)/include/sys/blkdev.h \
 	$(top_srcdir)/include/sys/zfs_ioctl.h \
 	$(top_srcdir)/include/sys/zfs_onexit.h \
+	${top_srcdir}/include/sys/zpl.h \
 	$(top_srcdir)/include/sys/zvol.h
 
 USER_H = 
diff --git a/include/sys/dmu.h b/include/sys/dmu.h
index 575cb2d10..7040b6740 100644
--- a/include/sys/dmu.h
+++ b/include/sys/dmu.h
@@ -515,11 +515,13 @@ void dmu_prealloc(objset_t *os, uint64_t object, uint64_t offset, uint64_t size,
 	dmu_tx_t *tx);
 #ifdef _KERNEL
 int dmu_read_req(objset_t *os, uint64_t object, struct request *req);
-int dmu_write_req(objset_t *os, uint64_t object, struct request *req, dmu_tx_t *tx);
-#endif
-#ifdef HAVE_ZPL
-int dmu_write_pages(objset_t *os, uint64_t object, uint64_t offset,
-    uint64_t size, struct page *pp, dmu_tx_t *tx);
+int dmu_write_req(objset_t *os, uint64_t object, struct request *req,
+	dmu_tx_t *tx);
+int dmu_read_uio(objset_t *os, uint64_t object, struct uio *uio, uint64_t size);
+int dmu_write_uio(objset_t *os, uint64_t object, struct uio *uio, uint64_t size,
+	dmu_tx_t *tx);
+int dmu_write_uio_dbuf(dmu_buf_t *zdb, struct uio *uio, uint64_t size,
+	dmu_tx_t *tx);
 #endif
 struct arc_buf *dmu_request_arcbuf(dmu_buf_t *handle, int size);
 void dmu_return_arcbuf(struct arc_buf *buf);
diff --git a/include/sys/dsl_pool.h b/include/sys/dsl_pool.h
index 7d25bd7c0..99a131eec 100644
--- a/include/sys/dsl_pool.h
+++ b/include/sys/dsl_pool.h
@@ -75,7 +75,7 @@ typedef struct dsl_pool {
 	struct dsl_dir *dp_free_dir;
 	struct dsl_dataset *dp_origin_snap;
 	uint64_t dp_root_dir_obj;
-	struct taskq *dp_vnrele_taskq;
+	struct taskq *dp_iput_taskq;
 
 	/* No lock needed - sync context only */
 	blkptr_t dp_meta_rootbp;
@@ -135,7 +135,7 @@ void dsl_pool_create_origin(dsl_pool_t *dp, dmu_tx_t *tx);
 void dsl_pool_upgrade_clones(dsl_pool_t *dp, dmu_tx_t *tx);
 void dsl_pool_upgrade_dir_clones(dsl_pool_t *dp, dmu_tx_t *tx);
 
-taskq_t *dsl_pool_vnrele_taskq(dsl_pool_t *dp);
+taskq_t *dsl_pool_iput_taskq(dsl_pool_t *dp);
 
 extern int dsl_pool_user_hold(dsl_pool_t *dp, uint64_t dsobj,
     const char *tag, uint64_t *now, dmu_tx_t *tx);
diff --git a/include/sys/fm/Makefile.in b/include/sys/fm/Makefile.in
index 5e1f4b883..d05018dd1 100644
--- a/include/sys/fm/Makefile.in
+++ b/include/sys/fm/Makefile.in
@@ -52,21 +52,24 @@ am__aclocal_m4_deps =  \
 	$(top_srcdir)/config/kernel-blk-rq-bytes.m4 \
 	$(top_srcdir)/config/kernel-blk-rq-pos.m4 \
 	$(top_srcdir)/config/kernel-blk-rq-sectors.m4 \
+	$(top_srcdir)/config/kernel-evict-inode.m4 \
 	$(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-invalidate-bdev-args.m4 \
 	$(top_srcdir)/config/kernel-kobj-name-len.m4 \
 	$(top_srcdir)/config/kernel-open-bdev-exclusive.m4 \
 	$(top_srcdir)/config/kernel-rq-for-each_segment.m4 \
 	$(top_srcdir)/config/kernel-rq-is_sync.m4 \
+	$(top_srcdir)/config/kernel-xattr-handler.m4 \
 	$(top_srcdir)/config/kernel.m4 \
 	$(top_srcdir)/config/user-arch.m4 \
 	$(top_srcdir)/config/user-frame-larger-than.m4 \
 	$(top_srcdir)/config/user-ioctl.m4 \
 	$(top_srcdir)/config/user-libblkid.m4 \
-	$(top_srcdir)/config/user-libshare.m4 \
 	$(top_srcdir)/config/user-libuuid.m4 \
 	$(top_srcdir)/config/user-nptl_guard_within_stack.m4 \
+	$(top_srcdir)/config/user-selinux.m4 \
 	$(top_srcdir)/config/user-zlib.m4 $(top_srcdir)/config/user.m4 \
 	$(top_srcdir)/config/zfs-build.m4 \
 	$(top_srcdir)/config/zfs-meta.m4 $(top_srcdir)/configure.ac
@@ -207,6 +210,7 @@ LDFLAGS = @LDFLAGS@
 LIBBLKID = @LIBBLKID@
 LIBOBJS = @LIBOBJS@
 LIBS = @LIBS@
+LIBSELINUX = @LIBSELINUX@
 LIBTOOL = @LIBTOOL@
 LIBUUID = @LIBUUID@
 LINUX = @LINUX@
diff --git a/include/sys/fm/fs/Makefile.in b/include/sys/fm/fs/Makefile.in
index ed828ebdd..e2ad9533f 100644
--- a/include/sys/fm/fs/Makefile.in
+++ b/include/sys/fm/fs/Makefile.in
@@ -52,21 +52,24 @@ am__aclocal_m4_deps =  \
 	$(top_srcdir)/config/kernel-blk-rq-bytes.m4 \
 	$(top_srcdir)/config/kernel-blk-rq-pos.m4 \
 	$(top_srcdir)/config/kernel-blk-rq-sectors.m4 \
+	$(top_srcdir)/config/kernel-evict-inode.m4 \
 	$(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-invalidate-bdev-args.m4 \
 	$(top_srcdir)/config/kernel-kobj-name-len.m4 \
 	$(top_srcdir)/config/kernel-open-bdev-exclusive.m4 \
 	$(top_srcdir)/config/kernel-rq-for-each_segment.m4 \
 	$(top_srcdir)/config/kernel-rq-is_sync.m4 \
+	$(top_srcdir)/config/kernel-xattr-handler.m4 \
 	$(top_srcdir)/config/kernel.m4 \
 	$(top_srcdir)/config/user-arch.m4 \
 	$(top_srcdir)/config/user-frame-larger-than.m4 \
 	$(top_srcdir)/config/user-ioctl.m4 \
 	$(top_srcdir)/config/user-libblkid.m4 \
-	$(top_srcdir)/config/user-libshare.m4 \
 	$(top_srcdir)/config/user-libuuid.m4 \
 	$(top_srcdir)/config/user-nptl_guard_within_stack.m4 \
+	$(top_srcdir)/config/user-selinux.m4 \
 	$(top_srcdir)/config/user-zlib.m4 $(top_srcdir)/config/user.m4 \
 	$(top_srcdir)/config/zfs-build.m4 \
 	$(top_srcdir)/config/zfs-meta.m4 $(top_srcdir)/configure.ac
@@ -167,6 +170,7 @@ LDFLAGS = @LDFLAGS@
 LIBBLKID = @LIBBLKID@
 LIBOBJS = @LIBOBJS@
 LIBS = @LIBS@
+LIBSELINUX = @LIBSELINUX@
 LIBTOOL = @LIBTOOL@
 LIBUUID = @LIBUUID@
 LINUX = @LINUX@
diff --git a/include/sys/fs/Makefile.in b/include/sys/fs/Makefile.in
index 3103ffa67..ce196fb89 100644
--- a/include/sys/fs/Makefile.in
+++ b/include/sys/fs/Makefile.in
@@ -52,21 +52,24 @@ am__aclocal_m4_deps =  \
 	$(top_srcdir)/config/kernel-blk-rq-bytes.m4 \
 	$(top_srcdir)/config/kernel-blk-rq-pos.m4 \
 	$(top_srcdir)/config/kernel-blk-rq-sectors.m4 \
+	$(top_srcdir)/config/kernel-evict-inode.m4 \
 	$(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-invalidate-bdev-args.m4 \
 	$(top_srcdir)/config/kernel-kobj-name-len.m4 \
 	$(top_srcdir)/config/kernel-open-bdev-exclusive.m4 \
 	$(top_srcdir)/config/kernel-rq-for-each_segment.m4 \
 	$(top_srcdir)/config/kernel-rq-is_sync.m4 \
+	$(top_srcdir)/config/kernel-xattr-handler.m4 \
 	$(top_srcdir)/config/kernel.m4 \
 	$(top_srcdir)/config/user-arch.m4 \
 	$(top_srcdir)/config/user-frame-larger-than.m4 \
 	$(top_srcdir)/config/user-ioctl.m4 \
 	$(top_srcdir)/config/user-libblkid.m4 \
-	$(top_srcdir)/config/user-libshare.m4 \
 	$(top_srcdir)/config/user-libuuid.m4 \
 	$(top_srcdir)/config/user-nptl_guard_within_stack.m4 \
+	$(top_srcdir)/config/user-selinux.m4 \
 	$(top_srcdir)/config/user-zlib.m4 $(top_srcdir)/config/user.m4 \
 	$(top_srcdir)/config/zfs-build.m4 \
 	$(top_srcdir)/config/zfs-meta.m4 $(top_srcdir)/configure.ac
@@ -167,6 +170,7 @@ LDFLAGS = @LDFLAGS@
 LIBBLKID = @LIBBLKID@
 LIBOBJS = @LIBOBJS@
 LIBS = @LIBS@
+LIBSELINUX = @LIBSELINUX@
 LIBTOOL = @LIBTOOL@
 LIBUUID = @LIBUUID@
 LINUX = @LINUX@
diff --git a/include/sys/uio_impl.h b/include/sys/uio_impl.h
new file mode 100644
index 000000000..37e283da0
--- /dev/null
+++ b/include/sys/uio_impl.h
@@ -0,0 +1,49 @@
+/*
+ * CDDL HEADER START
+ *
+ * The contents of this file are subject to the terms of the
+ * Common Development and Distribution License (the "License").
+ * You may not use this file except in compliance with the License.
+ *
+ * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
+ * or http://www.opensolaris.org/os/licensing.
+ * See the License for the specific language governing permissions
+ * and limitations under the License.
+ *
+ * When distributing Covered Code, include this CDDL HEADER in each
+ * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
+ * If applicable, add the following below this CDDL HEADER, with the
+ * fields enclosed by brackets "[]" replaced with your own identifying
+ * information: Portions Copyright [yyyy] [name of copyright owner]
+ *
+ * CDDL HEADER END
+ */
+/*
+ * Copyright 2010 Sun Microsystems, Inc.  All rights reserved.
+ * Use is subject to license terms.
+ */
+
+/*	Copyright (c) 1984, 1986, 1987, 1988, 1989 AT&T	*/
+/*	  All Rights Reserved	*/
+
+/*
+ * University Copyright- Copyright (c) 1982, 1986, 1988
+ * The Regents of the University of California
+ * All Rights Reserved
+ *
+ * University Acknowledgment- Portions of this document are derived from
+ * software developed by the University of California, Berkeley, and its
+ * contributors.
+ */
+
+#ifndef _SYS_UIO_IMPL_H
+#define	_SYS_UIO_IMPL_H
+
+#include <sys/uio.h>
+
+extern int uiomove(void *, size_t, enum uio_rw, uio_t *);
+extern void uio_prefaultpages(ssize_t, uio_t *);
+extern int uiocopy(void *, size_t, enum uio_rw, uio_t *, size_t *);
+extern void uioskip(uio_t *, size_t);
+
+#endif	/* _SYS_UIO_IMPL_H */
diff --git a/include/sys/vdev_disk.h b/include/sys/vdev_disk.h
index 021e66d1a..03e7048ac 100644
--- a/include/sys/vdev_disk.h
+++ b/include/sys/vdev_disk.h
@@ -81,6 +81,9 @@ extern int vdev_disk_read_rootlabel(char *, char *, nvlist_t **);
 # define vdev_bdev_block_size(bdev)	bdev_hardsect_size(bdev)
 #endif
 
+/* Default Linux IO Scheduler */
+#define	VDEV_SCHEDULER			"noop"
+
 #endif /* _KERNEL */
 
 #ifdef	__cplusplus
diff --git a/include/sys/zfs_acl.h b/include/sys/zfs_acl.h
index c1a0aeebd..6f7cef2ad 100644
--- a/include/sys/zfs_acl.h
+++ b/include/sys/zfs_acl.h
@@ -200,13 +200,13 @@ typedef struct zfs_acl_ids {
 #define	ZFS_ACL_PASSTHROUGH_X	5
 
 struct znode;
-struct zfsvfs;
+struct zfs_sb;
 
 #ifdef _KERNEL
 int zfs_acl_ids_create(struct znode *, int, vattr_t *,
     cred_t *, vsecattr_t *, zfs_acl_ids_t *);
 void zfs_acl_ids_free(zfs_acl_ids_t *);
-boolean_t zfs_acl_ids_overquota(struct zfsvfs *, zfs_acl_ids_t *);
+boolean_t zfs_acl_ids_overquota(struct zfs_sb *, zfs_acl_ids_t *);
 int zfs_getacl(struct znode *, vsecattr_t *, boolean_t, cred_t *);
 int zfs_setacl(struct znode *, vsecattr_t *, boolean_t, cred_t *);
 void zfs_acl_rele(void *);
@@ -223,7 +223,7 @@ int zfs_zaccess_delete(struct znode *, struct znode *, cred_t *);
 int zfs_zaccess_rename(struct znode *, struct znode *,
     struct znode *, struct znode *, cred_t *cr);
 void zfs_acl_free(zfs_acl_t *);
-int zfs_vsec_2_aclp(struct zfsvfs *, vtype_t, vsecattr_t *, cred_t *,
+int zfs_vsec_2_aclp(struct zfs_sb *, umode_t, vsecattr_t *, cred_t *,
     struct zfs_fuid_info **, zfs_acl_t **);
 int zfs_aclset_common(struct znode *, zfs_acl_t *, cred_t *, dmu_tx_t *);
 uint64_t zfs_external_acl(struct znode *);
diff --git a/include/sys/zfs_context.h b/include/sys/zfs_context.h
index c44990351..a0165bb2f 100644
--- a/include/sys/zfs_context.h
+++ b/include/sys/zfs_context.h
@@ -49,15 +49,15 @@
 #include <sys/byteorder.h>
 #include <sys/systm.h>
 #include <sys/list.h>
-#include <sys/uio.h>
+#include <sys/uio_impl.h>
 #include <sys/dirent.h>
 #include <sys/time.h>
 #include <vm/seg_kmem.h>
 #include <sys/zone.h>
-#include <sys/uio.h>
 #include <sys/zfs_debug.h>
 #include <sys/fm/fs/zfs.h>
 #include <sys/sunddi.h>
+#include <linux/dcache_compat.h>
 
 #else /* _KERNEL */
 
@@ -310,6 +310,7 @@ extern void cv_wait(kcondvar_t *cv, kmutex_t *mp);
 extern clock_t cv_timedwait(kcondvar_t *cv, kmutex_t *mp, clock_t abstime);
 extern void cv_signal(kcondvar_t *cv);
 extern void cv_broadcast(kcondvar_t *cv);
+#define cv_timedwait_interruptible(cv, mp, at)	cv_timedwait(cv, mp, at);
 
 /*
  * kstat creation, installation and deletion
diff --git a/include/sys/zfs_ctldir.h b/include/sys/zfs_ctldir.h
deleted file mode 100644
index f88ef95fd..000000000
--- a/include/sys/zfs_ctldir.h
+++ /dev/null
@@ -1,73 +0,0 @@
-/*
- * CDDL HEADER START
- *
- * The contents of this file are subject to the terms of the
- * Common Development and Distribution License (the "License").
- * You may not use this file except in compliance with the License.
- *
- * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
- * or http://www.opensolaris.org/os/licensing.
- * See the License for the specific language governing permissions
- * and limitations under the License.
- *
- * When distributing Covered Code, include this CDDL HEADER in each
- * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
- * If applicable, add the following below this CDDL HEADER, with the
- * fields enclosed by brackets "[]" replaced with your own identifying
- * information: Portions Copyright [yyyy] [name of copyright owner]
- *
- * CDDL HEADER END
- */
-/*
- * Copyright (c) 2005, 2010, Oracle and/or its affiliates. All rights reserved.
- */
-
-#ifndef	_ZFS_CTLDIR_H
-#define	_ZFS_CTLDIR_H
-
-#include <sys/pathname.h>
-#include <sys/vnode.h>
-#include <sys/zfs_vfsops.h>
-#include <sys/zfs_znode.h>
-
-#ifdef	__cplusplus
-extern "C" {
-#endif
-
-#define	ZFS_CTLDIR_NAME		".zfs"
-
-#define	zfs_has_ctldir(zdp)	\
-	((zdp)->z_id == (zdp)->z_zfsvfs->z_root && \
-	((zdp)->z_zfsvfs->z_ctldir != NULL))
-#define	zfs_show_ctldir(zdp)	\
-	(zfs_has_ctldir(zdp) && \
-	((zdp)->z_zfsvfs->z_show_ctldir))
-
-void zfsctl_create(zfsvfs_t *);
-void zfsctl_destroy(zfsvfs_t *);
-vnode_t *zfsctl_root(znode_t *);
-void zfsctl_init(void);
-void zfsctl_fini(void);
-boolean_t zfsctl_is_node(vnode_t *);
-
-int zfsctl_rename_snapshot(const char *from, const char *to);
-int zfsctl_destroy_snapshot(const char *snapname, int force);
-int zfsctl_umount_snapshots(vfs_t *, int, cred_t *);
-
-int zfsctl_root_lookup(vnode_t *dvp, char *nm, vnode_t **vpp, pathname_t *pnp,
-    int flags, vnode_t *rdir, cred_t *cr, caller_context_t *ct,
-    int *direntflags, pathname_t *realpnp);
-
-int zfsctl_make_fid(zfsvfs_t *zfsvfsp, uint64_t object, uint32_t gen,
-    fid_t *fidp);
-int zfsctl_lookup_objset(vfs_t *vfsp, uint64_t objsetid, zfsvfs_t **zfsvfsp);
-
-#define	ZFSCTL_INO_ROOT		0x1
-#define	ZFSCTL_INO_SNAPDIR	0x2
-#define	ZFSCTL_INO_SHARES	0x3
-
-#ifdef	__cplusplus
-}
-#endif
-
-#endif	/* _ZFS_CTLDIR_H */
diff --git a/include/sys/zfs_dir.h b/include/sys/zfs_dir.h
index 349f8ef37..8610fbe08 100644
--- a/include/sys/zfs_dir.h
+++ b/include/sys/zfs_dir.h
@@ -54,7 +54,7 @@ extern void zfs_dirent_unlock(zfs_dirlock_t *);
 extern int zfs_link_create(zfs_dirlock_t *, znode_t *, dmu_tx_t *, int);
 extern int zfs_link_destroy(zfs_dirlock_t *, znode_t *, dmu_tx_t *, int,
     boolean_t *);
-extern int zfs_dirlook(znode_t *, char *, vnode_t **, int, int *,
+extern int zfs_dirlook(znode_t *, char *, struct inode **, int, int *,
     pathname_t *);
 extern void zfs_mknode(znode_t *, vattr_t *, dmu_tx_t *, cred_t *,
     uint_t, znode_t **, zfs_acl_ids_t *);
@@ -62,10 +62,10 @@ extern void zfs_rmnode(znode_t *);
 extern void zfs_dl_name_switch(zfs_dirlock_t *dl, char *new, char **old);
 extern boolean_t zfs_dirempty(znode_t *);
 extern void zfs_unlinked_add(znode_t *, dmu_tx_t *);
-extern void zfs_unlinked_drain(zfsvfs_t *zfsvfs);
+extern void zfs_unlinked_drain(zfs_sb_t *);
 extern int zfs_sticky_remove_access(znode_t *, znode_t *, cred_t *cr);
-extern int zfs_get_xattrdir(znode_t *, vnode_t **, cred_t *, int);
-extern int zfs_make_xattrdir(znode_t *, vattr_t *, vnode_t **, cred_t *);
+extern int zfs_get_xattrdir(znode_t *, struct inode **, cred_t *, int);
+extern int zfs_make_xattrdir(znode_t *, vattr_t *, struct inode **, cred_t *);
 
 #ifdef	__cplusplus
 }
diff --git a/include/sys/zfs_fuid.h b/include/sys/zfs_fuid.h
index d2989c852..deaebcc82 100644
--- a/include/sys/zfs_fuid.h
+++ b/include/sys/zfs_fuid.h
@@ -99,27 +99,25 @@ typedef struct zfs_fuid_info {
 } zfs_fuid_info_t;
 
 #ifdef _KERNEL
-#ifdef HAVE_ZPL
 struct znode;
-extern uid_t zfs_fuid_map_id(zfsvfs_t *, uint64_t, cred_t *, zfs_fuid_type_t);
+extern uid_t zfs_fuid_map_id(zfs_sb_t *, uint64_t, cred_t *, zfs_fuid_type_t);
 extern void zfs_fuid_node_add(zfs_fuid_info_t **, const char *, uint32_t,
     uint64_t, uint64_t, zfs_fuid_type_t);
-extern void zfs_fuid_destroy(zfsvfs_t *);
-extern uint64_t zfs_fuid_create_cred(zfsvfs_t *, zfs_fuid_type_t,
+extern void zfs_fuid_destroy(zfs_sb_t *);
+extern uint64_t zfs_fuid_create_cred(zfs_sb_t *, zfs_fuid_type_t,
     cred_t *, zfs_fuid_info_t **);
-extern uint64_t zfs_fuid_create(zfsvfs_t *, uint64_t, cred_t *, zfs_fuid_type_t,
+extern uint64_t zfs_fuid_create(zfs_sb_t *, uint64_t, cred_t *, zfs_fuid_type_t,
     zfs_fuid_info_t **);
 extern void zfs_fuid_map_ids(struct znode *zp, cred_t *cr,
     uid_t *uid, uid_t *gid);
 extern zfs_fuid_info_t *zfs_fuid_info_alloc(void);
 extern void zfs_fuid_info_free(zfs_fuid_info_t *);
-extern boolean_t zfs_groupmember(zfsvfs_t *, uint64_t, cred_t *);
-void zfs_fuid_sync(zfsvfs_t *, dmu_tx_t *);
-extern int zfs_fuid_find_by_domain(zfsvfs_t *, const char *domain,
+extern boolean_t zfs_groupmember(zfs_sb_t *, uint64_t, cred_t *);
+void zfs_fuid_sync(zfs_sb_t *, dmu_tx_t *);
+extern int zfs_fuid_find_by_domain(zfs_sb_t *, const char *domain,
     char **retdomain, boolean_t addok);
-extern const char *zfs_fuid_find_by_idx(zfsvfs_t *zfsvfs, uint32_t idx);
-extern void zfs_fuid_txhold(zfsvfs_t *zfsvfs, dmu_tx_t *tx);
-#endif /* HAVE_ZPL */
+extern const char *zfs_fuid_find_by_idx(zfs_sb_t *zsb, uint32_t idx);
+extern void zfs_fuid_txhold(zfs_sb_t *zsb, dmu_tx_t *tx);
 #endif
 
 char *zfs_fuid_idx_domain(avl_tree_t *, uint32_t);
diff --git a/include/sys/zfs_vfsops.h b/include/sys/zfs_vfsops.h
index 38c87df43..a2f00acf0 100644
--- a/include/sys/zfs_vfsops.h
+++ b/include/sys/zfs_vfsops.h
@@ -38,13 +38,15 @@
 extern "C" {
 #endif
 
-typedef struct zfsvfs zfsvfs_t;
+struct zfs_sb;
 struct znode;
 
-struct zfsvfs {
-	vfs_t		*z_vfs;		/* generic fs struct */
-	zfsvfs_t	*z_parent;	/* parent fs */
+typedef struct zfs_sb {
+	struct vfsmount	*z_vfs;		/* generic vfs struct */
+	struct super_block *z_sb;	/* generic super_block */
+	struct zfs_sb	*z_parent;	/* parent fs */
 	objset_t	*z_os;		/* objset reference */
+	uint64_t	z_flags;	/* super_block flags */
 	uint64_t	z_root;		/* id of root znode */
 	uint64_t	z_unlinkedobj;	/* id of unlinked zapobj */
 	uint64_t	z_max_blksz;	/* maximum block size for files */
@@ -67,7 +69,7 @@ struct zfsvfs {
 	krwlock_t	z_teardown_inactive_lock;
 	list_t		z_all_znodes;	/* all vnodes in the fs */
 	kmutex_t	z_znodes_lock;	/* lock for z_all_znodes */
-	vnode_t		*z_ctldir;	/* .zfs directory pointer */
+	struct inode	*z_ctldir;	/* .zfs directory inode */
 	boolean_t	z_show_ctldir;	/* expose .zfs in the root dir */
 	boolean_t	z_issnap;	/* true if this is a snapshot */
 	boolean_t	z_vscan;	/* virus scan on/off */
@@ -83,7 +85,36 @@ struct zfsvfs {
 	sa_attr_type_t	*z_attr_table;	/* SA attr mapping->id */
 #define	ZFS_OBJ_MTX_SZ	64
 	kmutex_t	z_hold_mtx[ZFS_OBJ_MTX_SZ];	/* znode hold locks */
-};
+} zfs_sb_t;
+
+#define	ZFS_SUPER_MAGIC	0x2fc12fc1
+
+#define	ZSB_XATTR_USER	0x0001		/* Enable user xattrs */
+
+
+/*
+ * Minimal snapshot helpers, the bulk of the Linux snapshot implementation
+ * lives in the zpl_snap.c file which is part of the zpl source.
+ */
+#define	ZFS_CTLDIR_NAME		".zfs"
+
+#define	zfs_has_ctldir(zdp)	\
+	((zdp)->z_id == ZTOZSB(zdp)->z_root && \
+	(ZTOZSB(zdp)->z_ctldir != NULL))
+#define	zfs_show_ctldir(zdp)	\
+	(zfs_has_ctldir(zdp) &&	\
+	(ZTOZSB(zdp)->z_show_ctldir))
+
+#define	ZFSCTL_INO_ROOT		0x1
+#define	ZFSCTL_INO_SNAPDIR	0x2
+#define	ZFSCTL_INO_SHARES	0x3
+
+/*
+ * Allow a maximum number of links.  While ZFS does not internally limit
+ * this most Linux filesystems do.  It's probably a good idea to limit
+ * this to a large value until it is validated that this is safe.
+ */
+#define ZFS_LINK_MAX		65536
 
 /*
  * Normal filesystems (those not under .zfs/snapshot) have a total
@@ -135,23 +166,31 @@ typedef struct zfid_long {
 
 extern uint_t zfs_fsyncer_key;
 
-extern int zfs_suspend_fs(zfsvfs_t *zfsvfs);
-extern int zfs_resume_fs(zfsvfs_t *zfsvfs, const char *osname);
-extern int zfs_userspace_one(zfsvfs_t *zfsvfs, zfs_userquota_prop_t type,
+extern int zfs_suspend_fs(zfs_sb_t *zsb);
+extern int zfs_resume_fs(zfs_sb_t *zsb, const char *osname);
+extern int zfs_userspace_one(zfs_sb_t *zsb, zfs_userquota_prop_t type,
     const char *domain, uint64_t rid, uint64_t *valuep);
-extern int zfs_userspace_many(zfsvfs_t *zfsvfs, zfs_userquota_prop_t type,
+extern int zfs_userspace_many(zfs_sb_t *zsb, zfs_userquota_prop_t type,
     uint64_t *cookiep, void *vbuf, uint64_t *bufsizep);
-extern int zfs_set_userquota(zfsvfs_t *zfsvfs, zfs_userquota_prop_t type,
+extern int zfs_set_userquota(zfs_sb_t *zsb, zfs_userquota_prop_t type,
     const char *domain, uint64_t rid, uint64_t quota);
-extern boolean_t zfs_owner_overquota(zfsvfs_t *zfsvfs, struct znode *,
+extern boolean_t zfs_owner_overquota(zfs_sb_t *zsb, struct znode *,
     boolean_t isgroup);
-extern boolean_t zfs_fuid_overquota(zfsvfs_t *zfsvfs, boolean_t isgroup,
+extern boolean_t zfs_fuid_overquota(zfs_sb_t *zsb, boolean_t isgroup,
     uint64_t fuid);
-extern int zfs_set_version(zfsvfs_t *zfsvfs, uint64_t newvers);
-extern int zfsvfs_create(const char *name, zfsvfs_t **zfvp);
-extern void zfsvfs_free(zfsvfs_t *zfsvfs);
+extern int zfs_set_version(zfs_sb_t *zsb, uint64_t newvers);
+extern int zfs_sb_create(const char *name, zfs_sb_t **zsbp);
+extern void zfs_sb_free(zfs_sb_t *zsb);
 extern int zfs_check_global_label(const char *dsname, const char *hexsl);
 
+extern int zfs_register_callbacks(zfs_sb_t *zsb);
+extern void zfs_unregister_callbacks(zfs_sb_t *zsb);
+extern int zfs_domount(struct super_block *sb, void *data, int silent);
+extern int zfs_umount(struct super_block *sb);
+extern int zfs_root(zfs_sb_t *zsb, struct inode **ipp);
+extern int zfs_statvfs(struct dentry *dentry, struct kstatfs *statp);
+extern int zfs_vget(struct vfsmount *vfsp, struct inode **ipp, fid_t *fidp);
+
 #ifdef	__cplusplus
 }
 #endif
diff --git a/include/sys/zfs_vnops.h b/include/sys/zfs_vnops.h
new file mode 100644
index 000000000..2cacb9c6f
--- /dev/null
+++ b/include/sys/zfs_vnops.h
@@ -0,0 +1,78 @@
+/*
+ * CDDL HEADER START
+ *
+ * The contents of this file are subject to the terms of the
+ * Common Development and Distribution License (the "License").
+ * You may not use this file except in compliance with the License.
+ *
+ * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
+ * or http://www.opensolaris.org/os/licensing.
+ * See the License for the specific language governing permissions
+ * and limitations under the License.
+ *
+ * When distributing Covered Code, include this CDDL HEADER in each
+ * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
+ * If applicable, add the following below this CDDL HEADER, with the
+ * fields enclosed by brackets "[]" replaced with your own identifying
+ * information: Portions Copyright [yyyy] [name of copyright owner]
+ *
+ * CDDL HEADER END
+ */
+/*
+ * Copyright (c) 2010, Oracle and/or its affiliates. All rights reserved.
+ */
+
+#ifndef	_SYS_FS_ZFS_VNOPS_H
+#define	_SYS_FS_ZFS_VNOPS_H
+
+#include <sys/vnode.h>
+#include <sys/uio.h>
+#include <sys/cred.h>
+#include <sys/fcntl.h>
+#include <sys/pathname.h>
+
+#ifdef	__cplusplus
+extern "C" {
+#endif
+
+extern int zfs_read(struct inode *ip, uio_t *uio, int ioflag, cred_t *cr);
+extern int zfs_write(struct inode *ip, uio_t *uio, int ioflag, cred_t *cr);
+extern int zfs_access(struct inode *ip, int mode, int flag, cred_t *cr);
+extern int zfs_lookup(struct inode *dip, char *nm, struct inode **ipp,
+    int flags, cred_t *cr, int *direntflags, pathname_t *realpnp);
+extern int zfs_create(struct inode *dip, char *name, vattr_t *vap, int excl,
+    int mode, struct inode **ipp, cred_t *cr, int flag, vsecattr_t *vsecp);
+extern int zfs_remove(struct inode *dip, char *name, cred_t *cr);
+extern int zfs_mkdir(struct inode *dip, char *dirname, vattr_t *vap,
+    struct inode **ipp, cred_t *cr, int flags, vsecattr_t *vsecp);
+extern int zfs_rmdir(struct inode *dip, char *name, struct inode *cwd,
+    cred_t *cr, int flags);
+extern int zfs_readdir(struct inode *ip, void *dirent, filldir_t filldir,
+    loff_t *pos, cred_t *cr);
+extern int zfs_fsync(struct inode *ip, int syncflag, cred_t *cr);
+extern int zfs_getattr(struct inode *ip, struct kstat *stat, int flag,
+    cred_t *cr);
+extern int zfs_setattr(struct inode *ip, struct iattr *attr, int flag,
+    cred_t *cr);
+extern int zfs_rename(struct inode *sdip, char *snm, struct inode *tdip,
+    char *tnm, cred_t *cr, int flags);
+extern int zfs_symlink(struct inode *dip, char *name, vattr_t *vap,
+    char *link, struct inode **ipp, cred_t *cr, int flags);
+extern int zfs_follow_link(struct dentry *dentry, struct nameidata *nd);
+extern int zfs_readlink(struct inode *ip, uio_t *uio, cred_t *cr);
+extern int zfs_link(struct inode *tdip, struct inode *sip,
+    char *name, cred_t *cr);
+extern void zfs_inactive(struct inode *ip);
+extern int zfs_space(struct inode *ip, int cmd, flock64_t *bfp, int flag,
+    offset_t offset, cred_t *cr);
+extern int zfs_fid(struct inode *ip, fid_t *fidp);
+extern int zfs_getsecattr(struct inode *ip, vsecattr_t *vsecp, int flag,
+    cred_t *cr);
+extern int zfs_setsecattr(struct inode *ip, vsecattr_t *vsecp, int flag,
+    cred_t *cr);
+
+#ifdef	__cplusplus
+}
+#endif
+
+#endif	/* _SYS_FS_ZFS_VNOPS_H */
diff --git a/include/sys/zfs_znode.h b/include/sys/zfs_znode.h
index aa1f449ac..9d12a118e 100644
--- a/include/sys/zfs_znode.h
+++ b/include/sys/zfs_znode.h
@@ -69,7 +69,7 @@ extern "C" {
 		pflags |= attr; \
 	else \
 		pflags &= ~attr; \
-	VERIFY(0 == sa_update(zp->z_sa_hdl, SA_ZPL_FLAGS(zp->z_zfsvfs), \
+	VERIFY(0 == sa_update(zp->z_sa_hdl, SA_ZPL_FLAGS(zp->z_sb), \
 	    &pflags, sizeof (pflags), tx)); \
 }
 
@@ -181,8 +181,6 @@ typedef struct zfs_dirlock {
 } zfs_dirlock_t;
 
 typedef struct znode {
-	struct zfsvfs	*z_zfsvfs;
-	vnode_t		*z_vnode;
 	uint64_t	z_id;		/* object ID for this znode */
 	kmutex_t	z_lock;		/* znode modification lock */
 	krwlock_t	z_parent_lock;	/* parent lock for directories */
@@ -211,6 +209,9 @@ typedef struct znode {
 	list_node_t	z_link_node;	/* all znodes in fs link */
 	sa_handle_t	*z_sa_hdl;	/* handle to sa data */
 	boolean_t	z_is_sa;	/* are we native sa? */
+	boolean_t	z_is_zvol;	/* are we used by the zvol */
+	boolean_t	z_is_mapped;	/* are we mmap'ed */
+	struct inode	z_inode;	/* generic vfs inode */
 } znode_t;
 
 
@@ -231,45 +232,54 @@ typedef struct znode {
  */
 
 /*
- * Convert between znode pointers and vnode pointers
+ * Convert between znode pointers and inode pointers
  */
-#define	ZTOV(ZP)	((ZP)->z_vnode)
-#define	VTOZ(VP)	((znode_t *)(VP)->v_data)
+#define	ZTOI(znode)	(&((znode)->z_inode))
+#define	ITOZ(inode)	(container_of((inode), znode_t, z_inode))
+#define VTOZSB(vfs)	((zfs_sb_t *)((vfs)->mnt_sb->s_fs_info))
+#define ZTOZSB(znode)	((zfs_sb_t *)(ZTOI(znode)->i_sb->s_fs_info))
+#define ITOZSB(inode)	((zfs_sb_t *)((inode)->i_sb->s_fs_info))
+
+#define	S_ISDEV(mode)	(S_ISCHR(mode) || S_ISBLK(mode) || S_ISFIFO(mode))
 
 /*
- * ZFS_ENTER() is called on entry to each ZFS vnode and vfs operation.
+ * ZFS_ENTER() is called on entry to each ZFS inode and vfs operation.
  * ZFS_EXIT() must be called before exitting the vop.
  * ZFS_VERIFY_ZP() verifies the znode is valid.
  */
-#define	ZFS_ENTER(zfsvfs) \
+#define	ZFS_ENTER(zsb) \
 	{ \
-		rrw_enter(&(zfsvfs)->z_teardown_lock, RW_READER, FTAG); \
-		if ((zfsvfs)->z_unmounted) { \
-			ZFS_EXIT(zfsvfs); \
+		rrw_enter(&(zsb)->z_teardown_lock, RW_READER, FTAG); \
+		if ((zsb)->z_unmounted) { \
+			ZFS_EXIT(zsb); \
 			return (EIO); \
 		} \
 	}
 
-#define	ZFS_EXIT(zfsvfs) rrw_exit(&(zfsvfs)->z_teardown_lock, FTAG)
+#define	ZFS_EXIT(zsb) \
+	{ \
+		rrw_exit(&(zsb)->z_teardown_lock, FTAG); \
+		tsd_exit(); \
+	}
 
 #define	ZFS_VERIFY_ZP(zp) \
 	if ((zp)->z_sa_hdl == NULL) { \
-		ZFS_EXIT((zp)->z_zfsvfs); \
+		ZFS_EXIT(ZTOZSB(zp)); \
 		return (EIO); \
-	} \
+	}
 
 /*
  * Macros for dealing with dmu_buf_hold
  */
 #define	ZFS_OBJ_HASH(obj_num)	((obj_num) & (ZFS_OBJ_MTX_SZ - 1))
-#define	ZFS_OBJ_MUTEX(zfsvfs, obj_num)	\
-	(&(zfsvfs)->z_hold_mtx[ZFS_OBJ_HASH(obj_num)])
-#define	ZFS_OBJ_HOLD_ENTER(zfsvfs, obj_num) \
-	mutex_enter(ZFS_OBJ_MUTEX((zfsvfs), (obj_num)))
-#define	ZFS_OBJ_HOLD_TRYENTER(zfsvfs, obj_num) \
-	mutex_tryenter(ZFS_OBJ_MUTEX((zfsvfs), (obj_num)))
-#define	ZFS_OBJ_HOLD_EXIT(zfsvfs, obj_num) \
-	mutex_exit(ZFS_OBJ_MUTEX((zfsvfs), (obj_num)))
+#define	ZFS_OBJ_MUTEX(zsb, obj_num)	\
+	(&(zsb)->z_hold_mtx[ZFS_OBJ_HASH(obj_num)])
+#define	ZFS_OBJ_HOLD_ENTER(zsb, obj_num) \
+	mutex_enter(ZFS_OBJ_MUTEX((zsb), (obj_num)))
+#define	ZFS_OBJ_HOLD_TRYENTER(zsb, obj_num) \
+	mutex_tryenter(ZFS_OBJ_MUTEX((zsb), (obj_num)))
+#define	ZFS_OBJ_HOLD_EXIT(zsb, obj_num) \
+	mutex_exit(ZFS_OBJ_MUTEX((zsb), (obj_num)))
 
 /*
  * Macros to encode/decode ZFS stored time values from/to struct timespec
@@ -289,15 +299,15 @@ typedef struct znode {
 /*
  * Timestamp defines
  */
-#define	ACCESSED		(AT_ATIME)
-#define	STATE_CHANGED		(AT_CTIME)
-#define	CONTENT_MODIFIED	(AT_MTIME | AT_CTIME)
+#define	ACCESSED		(ATTR_ATIME)
+#define	STATE_CHANGED		(ATTR_CTIME)
+#define	CONTENT_MODIFIED	(ATTR_MTIME | ATTR_CTIME)
 
-#define	ZFS_ACCESSTIME_STAMP(zfsvfs, zp) \
-	if ((zfsvfs)->z_atime && !((zfsvfs)->z_vfs->vfs_flag & VFS_RDONLY)) \
+#define	ZFS_ACCESSTIME_STAMP(zsb, zp) \
+	if ((zsb)->z_atime && !((zsb)->z_vfs->mnt_flags & MNT_READONLY)) \
 		zfs_tstamp_update_setup(zp, ACCESSED, NULL, NULL, B_FALSE);
 
-extern int	zfs_init_fs(zfsvfs_t *, znode_t **);
+extern int	zfs_init_fs(zfs_sb_t *, znode_t **);
 extern void	zfs_set_dataprop(objset_t *);
 extern void	zfs_create_fs(objset_t *os, cred_t *cr, nvlist_t *,
     dmu_tx_t *tx);
@@ -307,18 +317,20 @@ extern void	zfs_grow_blocksize(znode_t *, uint64_t, dmu_tx_t *);
 extern int	zfs_freesp(znode_t *, uint64_t, uint64_t, int, boolean_t);
 extern void	zfs_znode_init(void);
 extern void	zfs_znode_fini(void);
-extern int	zfs_zget(zfsvfs_t *, uint64_t, znode_t **);
+extern int	zfs_zget(zfs_sb_t *, uint64_t, znode_t **);
 extern int	zfs_rezget(znode_t *);
 extern void	zfs_zinactive(znode_t *);
 extern void	zfs_znode_delete(znode_t *, dmu_tx_t *);
-extern void	zfs_znode_free(znode_t *);
 extern void	zfs_remove_op_tables(void);
 extern int	zfs_create_op_tables(void);
-extern int	zfs_sync(vfs_t *vfsp, short flag, cred_t *cr);
+extern int	zfs_sync(zfs_sb_t *, short, cred_t *);
 extern dev_t	zfs_cmpldev(uint64_t);
 extern int	zfs_get_zplprop(objset_t *os, zfs_prop_t prop, uint64_t *value);
 extern int	zfs_get_stats(objset_t *os, nvlist_t *nv);
 extern void	zfs_znode_dmu_fini(znode_t *);
+extern int	zfs_inode_alloc(struct super_block *, struct inode **ip);
+extern void	zfs_inode_destroy(struct inode *);
+extern void	zfs_inode_update(znode_t *);
 
 extern void zfs_log_create(zilog_t *zilog, dmu_tx_t *tx, uint64_t txtype,
     znode_t *dzp, znode_t *zp, char *name, vsecattr_t *, zfs_fuid_info_t *,
@@ -339,12 +351,13 @@ extern void zfs_log_write(zilog_t *zilog, dmu_tx_t *tx, int txtype,
 extern void zfs_log_truncate(zilog_t *zilog, dmu_tx_t *tx, int txtype,
     znode_t *zp, uint64_t off, uint64_t len);
 extern void zfs_log_setattr(zilog_t *zilog, dmu_tx_t *tx, int txtype,
-    znode_t *zp, vattr_t *vap, uint_t mask_applied, zfs_fuid_info_t *fuidp);
+    znode_t *zp, struct iattr *attr, uint_t mask_applied,
+    zfs_fuid_info_t *fuidp);
 extern void zfs_log_acl(zilog_t *zilog, dmu_tx_t *tx, znode_t *zp,
     vsecattr_t *vsecp, zfs_fuid_info_t *fuidp);
 extern void zfs_xvattr_set(znode_t *zp, xvattr_t *xvap, dmu_tx_t *tx);
-extern void zfs_upgrade(zfsvfs_t *zfsvfs, dmu_tx_t *tx);
-extern int zfs_create_share_dir(zfsvfs_t *zfsvfs, dmu_tx_t *tx);
+extern void zfs_upgrade(zfs_sb_t *zsb, dmu_tx_t *tx);
+extern int zfs_create_share_dir(zfs_sb_t *zsb, dmu_tx_t *tx);
 
 #if defined(HAVE_UIO_RW)
 extern caddr_t zfs_map_page(page_t *, enum seg_rw);
diff --git a/include/sys/zpl.h b/include/sys/zpl.h
new file mode 100644
index 000000000..b6da0d271
--- /dev/null
+++ b/include/sys/zpl.h
@@ -0,0 +1,65 @@
+/*
+ * CDDL HEADER START
+ *
+ * The contents of this file are subject to the terms of the
+ * Common Development and Distribution License (the "License").
+ * You may not use this file except in compliance with the License.
+ *
+ * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
+ * or http://www.opensolaris.org/os/licensing.
+ * See the License for the specific language governing permissions
+ * and limitations under the License.
+ *
+ * When distributing Covered Code, include this CDDL HEADER in each
+ * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
+ * If applicable, add the following below this CDDL HEADER, with the
+ * fields enclosed by brackets "[]" replaced with your own identifying
+ * information: Portions Copyright [yyyy] [name of copyright owner]
+ *
+ * CDDL HEADER END
+ */
+/*
+ * Copyright (c) 2011, Lawrence Livermore National Security, LLC.
+ */
+
+#ifndef	_SYS_ZPL_H
+#define	_SYS_ZPL_H
+
+#include <sys/vfs.h>
+#include <linux/vfs_compat.h>
+#include <linux/xattr_compat.h>
+
+/* zpl_inode.c */
+extern const struct inode_operations zpl_inode_operations;
+extern const struct inode_operations zpl_dir_inode_operations;
+extern const struct inode_operations zpl_symlink_inode_operations;
+extern const struct inode_operations zpl_special_inode_operations;
+
+/* zpl_file.c */
+extern ssize_t zpl_read_common(struct inode *ip, const char *buf,
+    size_t len, loff_t pos, uio_seg_t segment, int flags, cred_t *cr);
+extern ssize_t zpl_write_common(struct inode *ip, const char *buf,
+    size_t len, loff_t pos, uio_seg_t segment, int flags, cred_t *cr);
+
+extern const struct address_space_operations zpl_address_space_operations;
+extern const struct file_operations zpl_file_operations;
+extern const struct file_operations zpl_dir_file_operations;
+
+/* zpl_super.c */
+typedef struct zpl_mount_data {
+	const char *z_osname;	/* Dataset name */
+	void *z_data;		/* Mount options string */
+	struct vfsmount *z_vfs;	/* VFS mount point */
+} zpl_mount_data_t;
+
+extern const struct super_operations zpl_super_operations;
+/* extern const struct export_operations zpl_export_operations; */
+extern struct file_system_type zpl_fs_type;
+
+/* zpl_xattr.c */
+extern ssize_t zpl_xattr_list(struct dentry *dentry, char *buf, size_t size);
+extern int zpl_xattr_security_init(struct inode *ip, struct inode *dip);
+
+extern xattr_handler_t *zpl_xattr_handlers[];
+
+#endif	/* _SYS_ZPL_H */