diff --git a/Makefile.am b/Makefile.am
index 098357902916..acfd83beccc8 100644
--- a/Makefile.am
+++ b/Makefile.am
@@ -167,7 +167,7 @@ vcscheck:
 
 PHONY += zstdcheck
 zstdcheck:
-	@$(MAKE) -C module/zstd checksymbols
+	@$(MAKE) -C module check-zstd-symbols
 
 PHONY += lint
 lint: cppcheck paxcheck
diff --git a/configure.ac b/configure.ac
index 380b97d62460..5240a4959105 100644
--- a/configure.ac
+++ b/configure.ac
@@ -171,17 +171,6 @@ AC_CONFIG_FILES([
 	man/Makefile
 	module/Kbuild
 	module/Makefile
-	module/avl/Makefile
-	module/icp/Makefile
-	module/lua/Makefile
-	module/nvpair/Makefile
-	module/os/linux/spl/Makefile
-	module/os/linux/zfs/Makefile
-	module/spl/Makefile
-	module/unicode/Makefile
-	module/zcommon/Makefile
-	module/zfs/Makefile
-	module/zstd/Makefile
 	rpm/Makefile
 	rpm/generic/Makefile
 	rpm/generic/zfs-dkms.spec
diff --git a/etc/init.d/zfs-zed.in b/etc/init.d/zfs-zed.in
index 47f742259b27..e9cf8867403c 100755
--- a/etc/init.d/zfs-zed.in
+++ b/etc/init.d/zfs-zed.in
@@ -69,8 +69,7 @@ do_stop()
 	then
 		# No pools imported, it is/should be safe/possible to
 		# unload modules.
-		zfs_action "Unloading modules" rmmod zfs zunicode \
-		    zavl zcommon znvpair zlua spl
+		zfs_action "Unloading modules" rmmod zfs spl
 		return "$?"
 	fi
 }
diff --git a/include/os/freebsd/spl/sys/ccompile.h b/include/os/freebsd/spl/sys/ccompile.h
index 23e637983475..a46a3a18be14 100644
--- a/include/os/freebsd/spl/sys/ccompile.h
+++ b/include/os/freebsd/spl/sys/ccompile.h
@@ -42,9 +42,6 @@ extern "C" {
 #endif
 
 #define	EXPORT_SYMBOL(x)
-#define	MODULE_AUTHOR(s)
-#define	MODULE_DESCRIPTION(s)
-#define	MODULE_LICENSE(s)
 #define	module_param(a, b, c)
 #define	module_param_call(a, b, c, d, e)
 #define	module_param_named(a, b, c, d)
diff --git a/include/os/freebsd/spl/sys/mod_os.h b/include/os/freebsd/spl/sys/mod_os.h
index 293bd7d2b983..3a9ebbfc3bc4 100644
--- a/include/os/freebsd/spl/sys/mod_os.h
+++ b/include/os/freebsd/spl/sys/mod_os.h
@@ -31,11 +31,6 @@
 
 #include <sys/sysctl.h>
 
-#define	ZFS_MODULE_DESCRIPTION(s)
-#define	ZFS_MODULE_AUTHOR(s)
-#define	ZFS_MODULE_LICENSE(s)
-#define	ZFS_MODULE_VERSION(s)
-
 #define	EXPORT_SYMBOL(x)
 #define	module_param(a, b, c)
 #define	MODULE_PARM_DESC(a, b)
diff --git a/include/os/linux/kernel/linux/mod_compat.h b/include/os/linux/kernel/linux/mod_compat.h
index a90bdf7cf2d2..78603e54f54c 100644
--- a/include/os/linux/kernel/linux/mod_compat.h
+++ b/include/os/linux/kernel/linux/mod_compat.h
@@ -160,11 +160,4 @@ enum scope_prefix_types {
 
 #define	ZFS_MODULE_PARAM_ARGS	const char *buf, zfs_kernel_param_t *kp
 
-#define	ZFS_MODULE_DESCRIPTION(s) MODULE_DESCRIPTION(s)
-#define	ZFS_MODULE_AUTHOR(s) MODULE_AUTHOR(s)
-#define	ZFS_MODULE_LICENSE(s) MODULE_LICENSE(s)
-#define	ZFS_MODULE_VERSION(s) MODULE_VERSION(s)
-
-#define	module_init_early(fn) module_init(fn)
-
 #endif	/* _MOD_COMPAT_H */
diff --git a/include/sys/mod.h b/include/sys/mod.h
index a5a73ed0ee00..aba211423773 100644
--- a/include/sys/mod.h
+++ b/include/sys/mod.h
@@ -30,11 +30,6 @@
  * Exported symbols
  */
 #define	EXPORT_SYMBOL(x)
-
-#define	ZFS_MODULE_DESCRIPTION(s)
-#define	ZFS_MODULE_AUTHOR(s)
-#define	ZFS_MODULE_LICENSE(s)
-#define	ZFS_MODULE_VERSION(s)
 #endif
 
 #endif /* SYS_MOD_H */
diff --git a/module/Kbuild.in b/module/Kbuild.in
index 1507965c5750..4307c3da05f5 100644
--- a/module/Kbuild.in
+++ b/module/Kbuild.in
@@ -1,20 +1,6 @@
 # When integrated in to a monolithic kernel the spl module must appear
 # first.  This ensures its module initialization function is run before
 # any of the other module initialization functions which depend on it.
-ZFS_MODULES += spl/
-ZFS_MODULES += avl/
-ZFS_MODULES += icp/
-ZFS_MODULES += lua/
-ZFS_MODULES += nvpair/
-ZFS_MODULES += unicode/
-ZFS_MODULES += zcommon/
-ZFS_MODULES += zfs/
-ZFS_MODULES += zstd/
-
-# The rest is only relevant when run by kbuild
-ifneq ($(KERNELRELEASE),)
-
-obj-$(CONFIG_ZFS) := $(ZFS_MODULES)
 
 ZFS_MODULE_CFLAGS += -std=gnu99 -Wno-declaration-after-statement
 ZFS_MODULE_CFLAGS += -Wmissing-prototypes
@@ -22,10 +8,16 @@ ZFS_MODULE_CFLAGS += @KERNEL_DEBUG_CFLAGS@  @NO_FORMAT_ZERO_LENGTH@
 
 ifneq ($(KBUILD_EXTMOD),)
 zfs_include = @abs_top_srcdir@/include
+icp_include = @abs_srcdir@/icp/include
+zstd_include = @abs_srcdir@/zstd/include
 ZFS_MODULE_CFLAGS += -include @abs_top_builddir@/zfs_config.h
 ZFS_MODULE_CFLAGS += -I@abs_top_builddir@/include
+src = @abs_srcdir@
+obj = @abs_builddir@
 else
 zfs_include = $(srctree)/include/zfs
+icp_include = $(srctree)/$(src)/icp/include
+zstd_include = $(srctree)/$(src)/zstd/include
 ZFS_MODULE_CFLAGS += -include $(zfs_include)/zfs_config.h
 endif
 
@@ -41,7 +33,404 @@ ifneq ($(KBUILD_EXTMOD),)
 @CONFIG_QAT_TRUE@KBUILD_EXTRA_SYMBOLS += @QAT_SYMBOLS@
 endif
 
-subdir-asflags-y := $(ZFS_MODULE_CFLAGS) $(ZFS_MODULE_CPPFLAGS)
-subdir-ccflags-y := $(ZFS_MODULE_CFLAGS) $(ZFS_MODULE_CPPFLAGS)
+asflags-y := $(ZFS_MODULE_CFLAGS) $(ZFS_MODULE_CPPFLAGS)
+ccflags-y := $(ZFS_MODULE_CFLAGS) $(ZFS_MODULE_CPPFLAGS)
+
+# Suppress unused-value warnings in sparc64 architecture headers
+ccflags-$(CONFIG_SPARC64) += -Wno-unused-value
+
+
+obj-$(CONFIG_ZFS) := spl.o zfs.o
+
+SPL_OBJS := \
+	spl-atomic.o \
+	spl-condvar.o \
+	spl-cred.o \
+	spl-err.o \
+	spl-generic.o \
+	spl-kmem-cache.o \
+	spl-kmem.o \
+	spl-kstat.o \
+	spl-proc.o \
+	spl-procfs-list.o \
+	spl-taskq.o \
+	spl-thread.o \
+	spl-trace.o \
+	spl-tsd.o \
+	spl-vmem.o \
+	spl-xdr.o \
+	spl-zlib.o
+
+spl-objs += $(addprefix os/linux/spl/,$(SPL_OBJS))
+
+zfs-objs += avl/avl.o
+
+ICP_OBJS := \
+	algs/aes/aes_impl.o \
+	algs/aes/aes_impl_generic.o \
+	algs/aes/aes_modes.o \
+	algs/edonr/edonr.o \
+	algs/modes/cbc.o \
+	algs/modes/ccm.o \
+	algs/modes/ctr.o \
+	algs/modes/ecb.o \
+	algs/modes/gcm.o \
+	algs/modes/gcm_generic.o \
+	algs/modes/modes.o \
+	algs/sha2/sha2.o \
+	algs/skein/skein.o \
+	algs/skein/skein_block.o \
+	algs/skein/skein_iv.o \
+	api/kcf_cipher.o \
+	api/kcf_ctxops.o \
+	api/kcf_mac.o \
+	core/kcf_callprov.o \
+	core/kcf_mech_tabs.o \
+	core/kcf_prov_lib.o \
+	core/kcf_prov_tabs.o \
+	core/kcf_sched.o \
+	illumos-crypto.o \
+	io/aes.o \
+	io/sha2_mod.o \
+	io/skein_mod.o \
+	spi/kcf_spi.o
+
+ICP_OBJS_X86_64 := \
+	asm-x86_64/aes/aes_aesni.o \
+	asm-x86_64/aes/aes_amd64.o \
+	asm-x86_64/aes/aeskey.o \
+	asm-x86_64/modes/aesni-gcm-x86_64.o \
+	asm-x86_64/modes/gcm_pclmulqdq.o \
+	asm-x86_64/modes/ghash-x86_64.o \
+	asm-x86_64/sha2/sha256_impl.o \
+	asm-x86_64/sha2/sha512_impl.o
+
+ICP_OBJS_X86 := \
+	algs/aes/aes_impl_aesni.o \
+	algs/aes/aes_impl_x86-64.o \
+	algs/modes/gcm_pclmulqdq.o
+
+zfs-objs             += $(addprefix icp/,$(ICP_OBJS))
+zfs-$(CONFIG_X86)    += $(addprefix icp/,$(ICP_OBJS_X86))
+zfs-$(CONFIG_X86_64) += $(addprefix icp/,$(ICP_OBJS_X86_64))
+
+$(addprefix $(obj)/icp/,$(ICP_OBJS) $(ICP_OBJS_X86) $(ICP_OBJS_X86_64)) : asflags-y += -I$(icp_include)
+$(addprefix $(obj)/icp/,$(ICP_OBJS) $(ICP_OBJS_X86) $(ICP_OBJS_X86_64)) : ccflags-y += -I$(icp_include)
+
+# Suppress objtool "can't find jump dest instruction at" warnings.  They
+# are caused by the constants which are defined in the text section of the
+# assembly file using .byte instructions (e.g. bswap_mask).  The objtool
+# utility tries to interpret them as opcodes and obviously fails doing so.
+OBJECT_FILES_NON_STANDARD_aesni-gcm-x86_64.o := y
+OBJECT_FILES_NON_STANDARD_ghash-x86_64.o := y
+# Suppress objtool "unsupported stack pointer realignment" warnings. We are
+# not using a DRAP register while aligning the stack to a 64 byte boundary.
+# See #6950 for the reasoning.
+OBJECT_FILES_NON_STANDARD_sha256_impl.o := y
+OBJECT_FILES_NON_STANDARD_sha512_impl.o := y
+
+
+LUA_OBJS := \
+	lapi.o \
+	lauxlib.o \
+	lbaselib.o \
+	lcode.o \
+	lcompat.o \
+	lcorolib.o \
+	lctype.o \
+	ldebug.o \
+	ldo.o \
+	lfunc.o \
+	lgc.o \
+	llex.o \
+	lmem.o \
+	lobject.o \
+	lopcodes.o \
+	lparser.o \
+	lstate.o \
+	lstring.o \
+	lstrlib.o \
+	ltable.o \
+	ltablib.o \
+	ltm.o \
+	lvm.o \
+	lzio.o \
+	setjmp/setjmp.o
+
+zfs-objs += $(addprefix lua/,$(LUA_OBJS))
+
+
+NVPAIR_OBJS := \
+	fnvpair.o \
+	nvpair.o \
+	nvpair_alloc_fixed.o \
+	nvpair_alloc_spl.o
+
+zfs-objs += $(addprefix nvpair/,$(NVPAIR_OBJS))
+
+
+UNICODE_OBJS := \
+	u8_textprep.o \
+	uconv.o
+
+zfs-objs += $(addprefix unicode/,$(UNICODE_OBJS))
+
+
+ZCOMMON_OBJS := \
+	cityhash.o \
+	zfeature_common.o \
+	zfs_comutil.o \
+	zfs_deleg.o \
+	zfs_fletcher.o \
+	zfs_fletcher_superscalar.o \
+	zfs_fletcher_superscalar4.o \
+	zfs_namecheck.o \
+	zfs_prop.o \
+	zpool_prop.o \
+	zprop_common.o
+
+ZCOMMON_OBJS_X86 := \
+	zfs_fletcher_avx512.o \
+	zfs_fletcher_intel.o \
+	zfs_fletcher_sse.o
+
+ZCOMMON_OBJS_ARM64 := \
+	zfs_fletcher_aarch64_neon.o
+
+zfs-objs            += $(addprefix zcommon/,$(ZCOMMON_OBJS))
+zfs-$(CONFIG_X86)   += $(addprefix zcommon/,$(ZCOMMON_OBJS_X86))
+zfs-$(CONFIG_ARM64) += $(addprefix zcommon/,$(ZCOMMON_OBJS_ARM64))
+
+
+# Zstd uses -O3 by default, so we should follow
+ZFS_ZSTD_FLAGS := -O3
+
+# -fno-tree-vectorize gets set for gcc in zstd/common/compiler.h
+# Set it for other compilers, too.
+ZFS_ZSTD_FLAGS += -fno-tree-vectorize
+
+# SSE register return with SSE disabled if -march=znverX is passed
+ZFS_ZSTD_FLAGS += -U__BMI__
+
+# Quiet warnings about frame size due to unused code in unmodified zstd lib
+ZFS_ZSTD_FLAGS += -Wframe-larger-than=20480
+
+ZSTD_OBJS := \
+	zfs_zstd.o \
+	zstd_sparc.o
+
+ZSTD_UPSTREAM_OBJS := \
+	lib/common/entropy_common.o \
+	lib/common/error_private.o \
+	lib/common/fse_decompress.o \
+	lib/common/pool.o \
+	lib/common/zstd_common.o \
+	lib/compress/fse_compress.o \
+	lib/compress/hist.o \
+	lib/compress/huf_compress.o \
+	lib/compress/zstd_compress.o \
+	lib/compress/zstd_compress_literals.o \
+	lib/compress/zstd_compress_sequences.o \
+	lib/compress/zstd_compress_superblock.o \
+	lib/compress/zstd_double_fast.o \
+	lib/compress/zstd_fast.o \
+	lib/compress/zstd_lazy.o \
+	lib/compress/zstd_ldm.o \
+	lib/compress/zstd_opt.o \
+	lib/decompress/huf_decompress.o \
+	lib/decompress/zstd_ddict.o \
+	lib/decompress/zstd_decompress.o \
+	lib/decompress/zstd_decompress_block.o
+
+zfs-objs += $(addprefix zstd/,$(ZSTD_OBJS) $(ZSTD_UPSTREAM_OBJS))
+
+# Disable aarch64 neon SIMD instructions for kernel mode
+$(addprefix $(obj)/zstd/,$(ZSTD_OBJS) $(ZSTD_UPSTREAM_OBJS)) : ccflags-y += -I$(zstd_include) $(ZFS_ZSTD_FLAGS)
+$(addprefix $(obj)/zstd/,$(ZSTD_OBJS) $(ZSTD_UPSTREAM_OBJS)) : asflags-y += -I$(zstd_include)
+$(addprefix $(obj)/zstd/,$(ZSTD_UPSTREAM_OBJS)) : ccflags-y += -include $(zstd_include)/aarch64_compat.h -include $(zstd_include)/zstd_compat_wrapper.h -Wp,-w
+$(obj)/zstd/zfs_zstd.o : ccflags-y += -include $(zstd_include)/zstd_compat_wrapper.h
+
+
+ZFS_OBJS := \
+	abd.o \
+	aggsum.o \
+	arc.o \
+	blkptr.o \
+	bplist.o \
+	bpobj.o \
+	bptree.o \
+	bqueue.o \
+	btree.o \
+	dataset_kstats.o \
+	dbuf.o \
+	dbuf_stats.o \
+	ddt.o \
+	ddt_zap.o \
+	dmu.o \
+	dmu_diff.o \
+	dmu_object.o \
+	dmu_objset.o \
+	dmu_recv.o \
+	dmu_redact.o \
+	dmu_send.o \
+	dmu_traverse.o \
+	dmu_tx.o \
+	dmu_zfetch.o \
+	dnode.o \
+	dnode_sync.o \
+	dsl_bookmark.o \
+	dsl_crypt.o \
+	dsl_dataset.o \
+	dsl_deadlist.o \
+	dsl_deleg.o \
+	dsl_destroy.o \
+	dsl_dir.o \
+	dsl_pool.o \
+	dsl_prop.o \
+	dsl_scan.o \
+	dsl_synctask.o \
+	dsl_userhold.o \
+	edonr_zfs.o \
+	fm.o \
+	gzip.o \
+	hkdf.o \
+	lz4.o \
+	lz4_zfs.o \
+	lzjb.o \
+	metaslab.o \
+	mmp.o \
+	multilist.o \
+	objlist.o \
+	pathname.o \
+	range_tree.o \
+	refcount.o \
+	rrwlock.o \
+	sa.o \
+	sha256.o \
+	skein_zfs.o \
+	spa.o \
+	spa_boot.o \
+	spa_checkpoint.o \
+	spa_config.o \
+	spa_errlog.o \
+	spa_history.o \
+	spa_log_spacemap.o \
+	spa_misc.o \
+	spa_stats.o \
+	space_map.o \
+	space_reftree.o \
+	txg.o \
+	uberblock.o \
+	unique.o \
+	vdev.o \
+	vdev_cache.o \
+	vdev_draid.o \
+	vdev_draid_rand.o \
+	vdev_indirect.o \
+	vdev_indirect_births.o \
+	vdev_indirect_mapping.o \
+	vdev_initialize.o \
+	vdev_label.o \
+	vdev_mirror.o \
+	vdev_missing.o \
+	vdev_queue.o \
+	vdev_raidz.o \
+	vdev_raidz_math.o \
+	vdev_raidz_math_scalar.o \
+	vdev_rebuild.o \
+	vdev_removal.o \
+	vdev_root.o \
+	vdev_trim.o \
+	zap.o \
+	zap_leaf.o \
+	zap_micro.o \
+	zcp.o \
+	zcp_get.o \
+	zcp_global.o \
+	zcp_iter.o \
+	zcp_set.o \
+	zcp_synctask.o \
+	zfeature.o \
+	zfs_byteswap.o \
+	zfs_fm.o \
+	zfs_fuid.o \
+	zfs_ioctl.o \
+	zfs_log.o \
+	zfs_onexit.o \
+	zfs_quota.o \
+	zfs_ratelimit.o \
+	zfs_replay.o \
+	zfs_rlock.o \
+	zfs_sa.o \
+	zfs_vnops.o \
+	zil.o \
+	zio.o \
+	zio_checksum.o \
+	zio_compress.o \
+	zio_inject.o \
+	zle.o \
+	zrlock.o \
+	zthr.o \
+	zvol.o
+
+ZFS_OBJS_OS := \
+	abd_os.o \
+	arc_os.o \
+	mmp_os.o \
+	policy.o \
+	qat.o \
+	qat_compress.o \
+	qat_crypt.o \
+	spa_misc_os.o \
+	trace.o \
+	vdev_disk.o \
+	vdev_file.o \
+	zfs_acl.o \
+	zfs_ctldir.o \
+	zfs_debug.o \
+	zfs_dir.o \
+	zfs_file_os.o \
+	zfs_ioctl_os.o \
+	zfs_racct.o \
+	zfs_sysfs.o \
+	zfs_uio.o \
+	zfs_vfsops.o \
+	zfs_vnops_os.o \
+	zfs_znode.o \
+	zio_crypt.o \
+	zpl_ctldir.o \
+	zpl_export.o \
+	zpl_file.o \
+	zpl_inode.o \
+	zpl_super.o \
+	zpl_xattr.o \
+	zvol_os.o
+
+ZFS_OBJS_X86 := \
+	vdev_raidz_math_avx2.o \
+	vdev_raidz_math_avx512bw.o \
+	vdev_raidz_math_avx512f.o \
+	vdev_raidz_math_sse2.o \
+	vdev_raidz_math_ssse3.o
+
+ZFS_OBJS_ARM64 := \
+	vdev_raidz_math_aarch64_neon.o \
+	vdev_raidz_math_aarch64_neonx2.o
+
+ZFS_OBJS_PPC_PPC64 := \
+	vdev_raidz_math_powerpc_altivec.o
+
+zfs-objs            += $(addprefix zfs/,$(ZFS_OBJS)) $(addprefix os/linux/zfs/,$(ZFS_OBJS_OS))
+zfs-$(CONFIG_X86)   += $(addprefix zfs/,$(ZFS_OBJS_X86))
+zfs-$(CONFIG_ARM64) += $(addprefix zfs/,$(ZFS_OBJS_ARM64))
+zfs-$(CONFIG_PPC)   += $(addprefix zfs/,$(ZFS_OBJS_PPC_PPC64))
+zfs-$(CONFIG_PPC64) += $(addprefix zfs/,$(ZFS_OBJS_PPC_PPC64))
+
+# Suppress incorrect warnings from versions of objtool which are not
+# aware of x86 EVEX prefix instructions used for AVX512.
+OBJECT_FILES_NON_STANDARD_vdev_raidz_math_avx512bw.o := y
+OBJECT_FILES_NON_STANDARD_vdev_raidz_math_avx512f.o := y
 
+ifeq ($(CONFIG_ALTIVEC),y)
+$(obj)/zfs/vdev_raidz_math_powerpc_altivec.o : c_flags += -maltivec
 endif
diff --git a/module/Makefile.in b/module/Makefile.in
index 762f9394dd20..ea83ba127d46 100644
--- a/module/Makefile.in
+++ b/module/Makefile.in
@@ -3,8 +3,6 @@ include Kbuild
 INSTALL_MOD_DIR ?= extra
 INSTALL_MOD_PATH ?= $(DESTDIR)
 
-SUBDIR_TARGETS = icp lua zstd
-
 all: modules
 distclean maintainer-clean: clean
 install: modules_install
@@ -51,7 +49,8 @@ endif
 FMAKE = env -u MAKEFLAGS make $(FMAKEFLAGS)
 
 modules-Linux:
-	list='$(SUBDIR_TARGETS)'; for td in $$list; do $(MAKE) -C $$td; done
+	mkdir -p $(sort $(dir $(spl-objs) $(spl-)))
+	mkdir -p $(sort $(dir $(zfs-objs) $(zfs-)))
 	$(MAKE) -C @LINUX_OBJ@ $(if @KERNEL_CC@,CC=@KERNEL_CC@) \
 		$(if @KERNEL_LD@,LD=@KERNEL_LD@) $(if @KERNEL_LLVM@,LLVM=@KERNEL_LLVM@) \
 		M="$$PWD" @KERNEL_MAKE@ CONFIG_ZFS=m modules
@@ -77,16 +76,20 @@ clean-FreeBSD:
 
 clean: clean-@ac_system@
 
-modules_install-Linux:
+.PHONY: modules_uninstall-Linux-legacy
+modules_uninstall-Linux-legacy:
+	$(RM) -r $(addprefix $(KMODDIR)/$(INSTALL_MOD_DIR)/,spl/ avl/ icp/ lua/ nvpair/ unicode/ zcommon/ zfs/ zstd/)
+
+KMODDIR := $(INSTALL_MOD_PATH)/lib/modules/@LINUX_VERSION@
+modules_install-Linux: modules_uninstall-Linux-legacy
 	@# Install the kernel modules
 	$(MAKE) -C @LINUX_OBJ@ M="$$PWD" modules_install \
 		INSTALL_MOD_PATH=$(INSTALL_MOD_PATH) \
 		INSTALL_MOD_DIR=$(INSTALL_MOD_DIR) \
 		KERNELRELEASE=@LINUX_VERSION@
 	@# Remove extraneous build products when packaging
-	kmoddir=$(INSTALL_MOD_PATH)/lib/modules/@LINUX_VERSION@; \
 	if [ -n "$(DESTDIR)" ]; then \
-		find $$kmoddir -name 'modules.*' -delete; \
+		find $(KMODDIR) -name 'modules.*' -delete; \
 	fi
 	@# Debian ships tiny fake System.map files that are
 	@# syntactically valid but just say
@@ -107,12 +110,9 @@ modules_install-FreeBSD:
 
 modules_install: modules_install-@ac_system@
 
-modules_uninstall-Linux:
+modules_uninstall-Linux: modules_uninstall-Linux-legacy
 	@# Uninstall the kernel modules
-	kmoddir=$(INSTALL_MOD_PATH)/lib/modules/@LINUX_VERSION@; \
-	for objdir in $(ZFS_MODULES); do \
-		$(RM) -R $$kmoddir/$(INSTALL_MOD_DIR)/$$objdir; \
-	done
+	$(RM) $(addprefix $(KMODDIR)/$(INSTALL_MOD_DIR)/,zfs.ko spl.ko)
 
 modules_uninstall-FreeBSD:
 	@false
@@ -134,7 +134,7 @@ cppcheck-Linux:
 		-I @top_srcdir@/include/os/linux/spl \
 		-I @top_srcdir@/include/os/linux/zfs \
 		-I @top_srcdir@/include \
-		avl icp lua nvpair spl unicode zcommon zfs zstd os/linux
+		avl icp lua nvpair unicode zcommon zfs zstd os/linux
 
 cppcheck-FreeBSD:
 	@true
@@ -142,9 +142,11 @@ cppcheck-FreeBSD:
 cppcheck: cppcheck-@ac_system@
 
 distdir:
-	(cd @srcdir@ && find $(ZFS_MODULES) os -name '*.[chS]') | \
-	while read path; do \
-		mkdir -p $$distdir/$${path%/*}; \
-		cp @srcdir@/$$path $$distdir/$$path; \
-	done; \
+	cd @srcdir@ && find . -name '*.[chS]' -exec sh -c 'for f; do mkdir -p $$distdir/$${f%/*}; cp @srcdir@/$$f $$distdir/$$f; done' _ {} +
 	cp @srcdir@/Makefile.bsd $$distdir/Makefile.bsd
+
+gen-zstd-symbols:
+	for obj in $(addprefix zstd/,$(ZSTD_UPSTREAM_OBJS)); do echo; echo "/* $${obj#zstd/}: */"; @OBJDUMP@ -t $$obj | awk '$$2 == "g" && !/ zfs_/ {print "#define\t" $$6 " zfs_" $$6}' | sort; done >> zstd/include/zstd_compat_wrapper.h
+
+check-zstd-symbols:
+	@OBJDUMP@ -t $(addprefix zstd/,$(ZSTD_UPSTREAM_OBJS)) | awk '/file format/ {print}  $$2 == "g" && !/ zfs_/ {++ret; print}  END {exit ret}'
diff --git a/module/avl/Makefile.in b/module/avl/Makefile.in
deleted file mode 100644
index 991d5f95b8c0..000000000000
--- a/module/avl/Makefile.in
+++ /dev/null
@@ -1,10 +0,0 @@
-ifneq ($(KBUILD_EXTMOD),)
-src = @abs_srcdir@
-obj = @abs_builddir@
-endif
-
-MODULE := zavl
-
-obj-$(CONFIG_ZFS) := $(MODULE).o
-
-$(MODULE)-objs += avl.o
diff --git a/module/avl/avl.c b/module/avl/avl.c
index 3891a2d62880..69cb8bf6815b 100644
--- a/module/avl/avl.c
+++ b/module/avl/avl.c
@@ -1044,28 +1044,6 @@ avl_destroy_nodes(avl_tree_t *tree, void **cookie)
 	return (AVL_NODE2DATA(node, off));
 }
 
-#if defined(_KERNEL)
-
-static int __init
-avl_init(void)
-{
-	return (0);
-}
-
-static void __exit
-avl_fini(void)
-{
-}
-
-module_init(avl_init);
-module_exit(avl_fini);
-#endif
-
-ZFS_MODULE_DESCRIPTION("Generic AVL tree implementation");
-ZFS_MODULE_AUTHOR(ZFS_META_AUTHOR);
-ZFS_MODULE_LICENSE(ZFS_META_LICENSE);
-ZFS_MODULE_VERSION(ZFS_META_VERSION "-" ZFS_META_RELEASE);
-
 EXPORT_SYMBOL(avl_create);
 EXPORT_SYMBOL(avl_find);
 EXPORT_SYMBOL(avl_insert);
diff --git a/module/icp/Makefile.in b/module/icp/Makefile.in
deleted file mode 100644
index 72c9ab12adb7..000000000000
--- a/module/icp/Makefile.in
+++ /dev/null
@@ -1,90 +0,0 @@
-ifneq ($(KBUILD_EXTMOD),)
-src = @abs_srcdir@
-obj = @abs_builddir@
-icp_include = $(src)/include
-else
-icp_include = $(srctree)/$(src)/include
-endif
-
-MODULE := icp
-
-obj-$(CONFIG_ZFS) := $(MODULE).o
-
-asflags-y := -I$(icp_include)
-ccflags-y := -I$(icp_include)
-
-$(MODULE)-objs += illumos-crypto.o
-$(MODULE)-objs += api/kcf_cipher.o
-$(MODULE)-objs += api/kcf_mac.o
-$(MODULE)-objs += api/kcf_ctxops.o
-$(MODULE)-objs += core/kcf_callprov.o
-$(MODULE)-objs += core/kcf_prov_tabs.o
-$(MODULE)-objs += core/kcf_sched.o
-$(MODULE)-objs += core/kcf_mech_tabs.o
-$(MODULE)-objs += core/kcf_prov_lib.o
-$(MODULE)-objs += spi/kcf_spi.o
-$(MODULE)-objs += io/aes.o
-$(MODULE)-objs += io/sha2_mod.o
-$(MODULE)-objs += io/skein_mod.o
-$(MODULE)-objs += algs/modes/cbc.o
-$(MODULE)-objs += algs/modes/ccm.o
-$(MODULE)-objs += algs/modes/ctr.o
-$(MODULE)-objs += algs/modes/ecb.o
-$(MODULE)-objs += algs/modes/gcm_generic.o
-$(MODULE)-objs += algs/modes/gcm.o
-$(MODULE)-objs += algs/modes/modes.o
-$(MODULE)-objs += algs/aes/aes_impl_generic.o
-$(MODULE)-objs += algs/aes/aes_impl.o
-$(MODULE)-objs += algs/aes/aes_modes.o
-$(MODULE)-objs += algs/edonr/edonr.o
-$(MODULE)-objs += algs/sha2/sha2.o
-$(MODULE)-objs += algs/skein/skein.o
-$(MODULE)-objs += algs/skein/skein_block.o
-$(MODULE)-objs += algs/skein/skein_iv.o
-
-$(MODULE)-$(CONFIG_X86_64) += asm-x86_64/aes/aeskey.o
-$(MODULE)-$(CONFIG_X86_64) += asm-x86_64/aes/aes_amd64.o
-$(MODULE)-$(CONFIG_X86_64) += asm-x86_64/aes/aes_aesni.o
-$(MODULE)-$(CONFIG_X86_64) += asm-x86_64/modes/gcm_pclmulqdq.o
-$(MODULE)-$(CONFIG_X86_64) += asm-x86_64/modes/aesni-gcm-x86_64.o
-$(MODULE)-$(CONFIG_X86_64) += asm-x86_64/modes/ghash-x86_64.o
-$(MODULE)-$(CONFIG_X86_64) += asm-x86_64/sha2/sha256_impl.o
-$(MODULE)-$(CONFIG_X86_64) += asm-x86_64/sha2/sha512_impl.o
-
-$(MODULE)-$(CONFIG_X86) += algs/modes/gcm_pclmulqdq.o
-$(MODULE)-$(CONFIG_X86) += algs/aes/aes_impl_aesni.o
-$(MODULE)-$(CONFIG_X86) += algs/aes/aes_impl_x86-64.o
-
-# Suppress objtool "can't find jump dest instruction at" warnings.  They
-# are caused by the constants which are defined in the text section of the
-# assembly file using .byte instructions (e.g. bswap_mask).  The objtool
-# utility tries to interpret them as opcodes and obviously fails doing so.
-OBJECT_FILES_NON_STANDARD_aesni-gcm-x86_64.o := y
-OBJECT_FILES_NON_STANDARD_ghash-x86_64.o := y
-# Suppress objtool "unsupported stack pointer realignment" warnings. We are
-# not using a DRAP register while aligning the stack to a 64 byte boundary.
-# See #6950 for the reasoning.
-OBJECT_FILES_NON_STANDARD_sha256_impl.o := y
-OBJECT_FILES_NON_STANDARD_sha512_impl.o := y
-
-ICP_DIRS = \
-	api \
-	core \
-	spi \
-	io \
-	os \
-	algs \
-	algs/aes \
-	algs/edonr \
-	algs/modes \
-	algs/sha2 \
-	algs/skein \
-	asm-x86_64 \
-	asm-x86_64/aes \
-	asm-x86_64/modes \
-	asm-x86_64/sha2 \
-	asm-i386 \
-	asm-generic
-
-all:
-	mkdir -p $(ICP_DIRS)
diff --git a/module/icp/illumos-crypto.c b/module/icp/illumos-crypto.c
index f68f6bc765a2..d17b90e7200a 100644
--- a/module/icp/illumos-crypto.c
+++ b/module/icp/illumos-crypto.c
@@ -104,7 +104,7 @@
  * ZFS Makefiles.
  */
 
-void __exit
+void
 icp_fini(void)
 {
 	skein_mod_fini();
@@ -139,10 +139,7 @@ icp_init(void)
 	return (0);
 }
 
-#if defined(_KERNEL)
+#if defined(_KERNEL) && defined(__FreeBSD__)
 module_exit(icp_fini);
 module_init(icp_init);
-MODULE_AUTHOR(ZFS_META_AUTHOR);
-MODULE_LICENSE(ZFS_META_LICENSE);
-MODULE_VERSION(ZFS_META_VERSION "-" ZFS_META_RELEASE);
 #endif
diff --git a/module/lua/Makefile.in b/module/lua/Makefile.in
deleted file mode 100644
index 0a74c17e64e8..000000000000
--- a/module/lua/Makefile.in
+++ /dev/null
@@ -1,39 +0,0 @@
-ifneq ($(KBUILD_EXTMOD),)
-src = @abs_srcdir@
-obj = @abs_builddir@
-endif
-
-MODULE := zlua
-
-obj-$(CONFIG_ZFS) := $(MODULE).o
-
-ccflags-y := -DLUA_USE_LONGLONG
-
-$(MODULE)-objs += lapi.o
-$(MODULE)-objs += lauxlib.o
-$(MODULE)-objs += lbaselib.o
-$(MODULE)-objs += lcode.o
-$(MODULE)-objs += lcompat.o
-$(MODULE)-objs += lcorolib.o
-$(MODULE)-objs += lctype.o
-$(MODULE)-objs += ldebug.o
-$(MODULE)-objs += ldo.o
-$(MODULE)-objs += lfunc.o
-$(MODULE)-objs += lgc.o
-$(MODULE)-objs += llex.o
-$(MODULE)-objs += lmem.o
-$(MODULE)-objs += lobject.o
-$(MODULE)-objs += lopcodes.o
-$(MODULE)-objs += lparser.o
-$(MODULE)-objs += lstate.o
-$(MODULE)-objs += lstring.o
-$(MODULE)-objs += lstrlib.o
-$(MODULE)-objs += ltable.o
-$(MODULE)-objs += ltablib.o
-$(MODULE)-objs += ltm.o
-$(MODULE)-objs += lvm.o
-$(MODULE)-objs += lzio.o
-$(MODULE)-objs += setjmp/setjmp.o
-
-all:
-	mkdir -p setjmp
diff --git a/module/lua/lapi.c b/module/lua/lapi.c
index 72b0037aa9a9..726e5c2ad4bb 100644
--- a/module/lua/lapi.c
+++ b/module/lua/lapi.c
@@ -1278,29 +1278,6 @@ LUA_API void lua_upvaluejoin (lua_State *L, int fidx1, int n1,
   luaC_objbarrier(L, f1, *up2);
 }
 
-#if defined(_KERNEL)
-
-static int __init
-lua_init(void)
-{
-        return (0);
-}
-
-static void __exit
-lua_fini(void)
-{
-}
-
-module_init(lua_init);
-module_exit(lua_fini);
-
-#endif
-
-ZFS_MODULE_DESCRIPTION("Lua Interpreter for ZFS");
-ZFS_MODULE_AUTHOR("Lua.org");
-ZFS_MODULE_LICENSE("Dual MIT/GPL");
-ZFS_MODULE_VERSION(ZFS_META_VERSION "-" ZFS_META_RELEASE);
-
 EXPORT_SYMBOL(lua_absindex);
 EXPORT_SYMBOL(lua_atpanic);
 EXPORT_SYMBOL(lua_checkstack);
diff --git a/module/nvpair/Makefile.in b/module/nvpair/Makefile.in
deleted file mode 100644
index d8145236674b..000000000000
--- a/module/nvpair/Makefile.in
+++ /dev/null
@@ -1,13 +0,0 @@
-ifneq ($(KBUILD_EXTMOD),)
-src = @abs_srcdir@
-obj = @abs_builddir@
-endif
-
-MODULE := znvpair
-
-obj-$(CONFIG_ZFS) := $(MODULE).o
-
-$(MODULE)-objs += nvpair.o
-$(MODULE)-objs += fnvpair.o
-$(MODULE)-objs += nvpair_alloc_spl.o
-$(MODULE)-objs += nvpair_alloc_fixed.o
diff --git a/module/nvpair/nvpair.c b/module/nvpair/nvpair.c
index a5222dac7849..a442990dade0 100644
--- a/module/nvpair/nvpair.c
+++ b/module/nvpair/nvpair.c
@@ -3678,27 +3678,6 @@ nvs_xdr(nvstream_t *nvs, nvlist_t *nvl, char *buf, size_t *buflen)
 	return (err);
 }
 
-#if defined(_KERNEL)
-static int __init
-nvpair_init(void)
-{
-	return (0);
-}
-
-static void __exit
-nvpair_fini(void)
-{
-}
-
-module_init(nvpair_init);
-module_exit(nvpair_fini);
-#endif
-
-ZFS_MODULE_DESCRIPTION("Generic name/value pair implementation");
-ZFS_MODULE_AUTHOR(ZFS_META_AUTHOR);
-ZFS_MODULE_LICENSE(ZFS_META_LICENSE);
-ZFS_MODULE_VERSION(ZFS_META_VERSION "-" ZFS_META_RELEASE);
-
 EXPORT_SYMBOL(nv_alloc_init);
 EXPORT_SYMBOL(nv_alloc_reset);
 EXPORT_SYMBOL(nv_alloc_fini);
diff --git a/module/os/linux/spl/Makefile.in b/module/os/linux/spl/Makefile.in
deleted file mode 100644
index b2325f91b4a7..000000000000
--- a/module/os/linux/spl/Makefile.in
+++ /dev/null
@@ -1,17 +0,0 @@
-$(MODULE)-objs += ../os/linux/spl/spl-atomic.o
-$(MODULE)-objs += ../os/linux/spl/spl-condvar.o
-$(MODULE)-objs += ../os/linux/spl/spl-cred.o
-$(MODULE)-objs += ../os/linux/spl/spl-err.o
-$(MODULE)-objs += ../os/linux/spl/spl-generic.o
-$(MODULE)-objs += ../os/linux/spl/spl-kmem.o
-$(MODULE)-objs += ../os/linux/spl/spl-kmem-cache.o
-$(MODULE)-objs += ../os/linux/spl/spl-kstat.o
-$(MODULE)-objs += ../os/linux/spl/spl-proc.o
-$(MODULE)-objs += ../os/linux/spl/spl-procfs-list.o
-$(MODULE)-objs += ../os/linux/spl/spl-taskq.o
-$(MODULE)-objs += ../os/linux/spl/spl-thread.o
-$(MODULE)-objs += ../os/linux/spl/spl-trace.o
-$(MODULE)-objs += ../os/linux/spl/spl-tsd.o
-$(MODULE)-objs += ../os/linux/spl/spl-vmem.o
-$(MODULE)-objs += ../os/linux/spl/spl-xdr.o
-$(MODULE)-objs += ../os/linux/spl/spl-zlib.o
diff --git a/module/os/linux/spl/spl-generic.c b/module/os/linux/spl/spl-generic.c
index cc9a973fef62..143f34598588 100644
--- a/module/os/linux/spl/spl-generic.c
+++ b/module/os/linux/spl/spl-generic.c
@@ -828,7 +828,7 @@ spl_fini(void)
 module_init(spl_init);
 module_exit(spl_fini);
 
-ZFS_MODULE_DESCRIPTION("Solaris Porting Layer");
-ZFS_MODULE_AUTHOR(ZFS_META_AUTHOR);
-ZFS_MODULE_LICENSE("GPL");
-ZFS_MODULE_VERSION(ZFS_META_VERSION "-" ZFS_META_RELEASE);
+MODULE_DESCRIPTION("Solaris Porting Layer");
+MODULE_AUTHOR(ZFS_META_AUTHOR);
+MODULE_LICENSE("GPL");
+MODULE_VERSION(ZFS_META_VERSION "-" ZFS_META_RELEASE);
diff --git a/module/os/linux/zfs/Makefile.in b/module/os/linux/zfs/Makefile.in
deleted file mode 100644
index fa990776db83..000000000000
--- a/module/os/linux/zfs/Makefile.in
+++ /dev/null
@@ -1,38 +0,0 @@
-#
-# Linux specific sources included from module/zfs/Makefile.in
-#
-
-# Suppress unused-value warnings in sparc64 architecture headers
-ccflags-$(CONFIG_SPARC64) += -Wno-unused-value
-
-$(MODULE)-objs += ../os/linux/zfs/abd_os.o
-$(MODULE)-objs += ../os/linux/zfs/arc_os.o
-$(MODULE)-objs += ../os/linux/zfs/mmp_os.o
-$(MODULE)-objs += ../os/linux/zfs/policy.o
-$(MODULE)-objs += ../os/linux/zfs/trace.o
-$(MODULE)-objs += ../os/linux/zfs/qat.o
-$(MODULE)-objs += ../os/linux/zfs/qat_compress.o
-$(MODULE)-objs += ../os/linux/zfs/qat_crypt.o
-$(MODULE)-objs += ../os/linux/zfs/spa_misc_os.o
-$(MODULE)-objs += ../os/linux/zfs/vdev_disk.o
-$(MODULE)-objs += ../os/linux/zfs/vdev_file.o
-$(MODULE)-objs += ../os/linux/zfs/zfs_acl.o
-$(MODULE)-objs += ../os/linux/zfs/zfs_ctldir.o
-$(MODULE)-objs += ../os/linux/zfs/zfs_debug.o
-$(MODULE)-objs += ../os/linux/zfs/zfs_dir.o
-$(MODULE)-objs += ../os/linux/zfs/zfs_file_os.o
-$(MODULE)-objs += ../os/linux/zfs/zfs_ioctl_os.o
-$(MODULE)-objs += ../os/linux/zfs/zfs_racct.o
-$(MODULE)-objs += ../os/linux/zfs/zfs_sysfs.o
-$(MODULE)-objs += ../os/linux/zfs/zfs_uio.o
-$(MODULE)-objs += ../os/linux/zfs/zfs_vfsops.o
-$(MODULE)-objs += ../os/linux/zfs/zfs_vnops_os.o
-$(MODULE)-objs += ../os/linux/zfs/zfs_znode.o
-$(MODULE)-objs += ../os/linux/zfs/zio_crypt.o
-$(MODULE)-objs += ../os/linux/zfs/zpl_ctldir.o
-$(MODULE)-objs += ../os/linux/zfs/zpl_export.o
-$(MODULE)-objs += ../os/linux/zfs/zpl_file.o
-$(MODULE)-objs += ../os/linux/zfs/zpl_inode.o
-$(MODULE)-objs += ../os/linux/zfs/zpl_super.o
-$(MODULE)-objs += ../os/linux/zfs/zpl_xattr.o
-$(MODULE)-objs += ../os/linux/zfs/zvol_os.o
diff --git a/module/os/linux/zfs/zfs_ioctl_os.c b/module/os/linux/zfs/zfs_ioctl_os.c
index fee3fe540b90..c65702e1a053 100644
--- a/module/os/linux/zfs/zfs_ioctl_os.c
+++ b/module/os/linux/zfs/zfs_ioctl_os.c
@@ -58,6 +58,8 @@
 #include <sys/zvol.h>
 #include <sys/fm/util.h>
 #include <sys/dsl_crypt.h>
+#include <sys/crypto/icp.h>
+#include <sys/zstd/zstd.h>
 
 #include <sys/zfs_ioctl_impl.h>
 
@@ -233,8 +235,8 @@ zfsdev_detach(void)
 #define	ZFS_DEBUG_STR	""
 #endif
 
-static int __init
-openzfs_init(void)
+static int
+openzfs_init_os(void)
 {
 	int error;
 
@@ -259,8 +261,8 @@ openzfs_init(void)
 	return (0);
 }
 
-static void __exit
-openzfs_fini(void)
+static void
+openzfs_fini_os(void)
 {
 	zfs_sysfs_fini();
 	zfs_kmod_fini();
@@ -269,12 +271,59 @@ openzfs_fini(void)
 	    ZFS_META_VERSION, ZFS_META_RELEASE, ZFS_DEBUG_STR);
 }
 
+
+extern int __init zcommon_init(void);
+extern void zcommon_fini(void);
+
+static int __init
+openzfs_init(void)
+{
+	int err;
+	if ((err = zcommon_init()) != 0)
+		goto zcommon_failed;
+	if ((err = icp_init()) != 0)
+		goto icp_failed;
+	if ((err = zstd_init()) != 0)
+		goto zstd_failed;
+	if ((err = openzfs_init_os()) != 0)
+		goto openzfs_os_failed;
+	return (0);
+
+openzfs_os_failed:
+	zstd_fini();
+zstd_failed:
+	icp_fini();
+icp_failed:
+	zcommon_fini();
+zcommon_failed:
+	return (err);
+}
+
+static void __exit
+openzfs_fini(void)
+{
+	openzfs_fini_os();
+	zstd_fini();
+	icp_fini();
+	zcommon_fini();
+}
+
 #if defined(_KERNEL)
 module_init(openzfs_init);
 module_exit(openzfs_fini);
 #endif
 
-ZFS_MODULE_DESCRIPTION("ZFS");
-ZFS_MODULE_AUTHOR(ZFS_META_AUTHOR);
-ZFS_MODULE_LICENSE(ZFS_META_LICENSE);
-ZFS_MODULE_VERSION(ZFS_META_VERSION "-" ZFS_META_RELEASE);
+MODULE_ALIAS("zavl");
+MODULE_ALIAS("icp");
+MODULE_ALIAS("zlua");
+MODULE_ALIAS("znvpair");
+MODULE_ALIAS("zunicode");
+MODULE_ALIAS("zcommon");
+MODULE_ALIAS("zzstd");
+MODULE_DESCRIPTION("ZFS");
+MODULE_AUTHOR(ZFS_META_AUTHOR);
+MODULE_LICENSE("Lua: MIT");
+MODULE_LICENSE("zstd: Dual BSD/GPL");
+MODULE_LICENSE("Dual BSD/GPL");
+MODULE_LICENSE(ZFS_META_LICENSE);
+MODULE_VERSION(ZFS_META_VERSION "-" ZFS_META_RELEASE);
diff --git a/module/spl/Makefile.in b/module/spl/Makefile.in
deleted file mode 100644
index cedbfe92b58a..000000000000
--- a/module/spl/Makefile.in
+++ /dev/null
@@ -1,13 +0,0 @@
-ifneq ($(KBUILD_EXTMOD),)
-src = @abs_srcdir@
-obj = @abs_builddir@
-mfdir = $(obj)
-else
-mfdir = $(srctree)/$(src)
-endif
-
-MODULE := spl
-
-obj-$(CONFIG_ZFS) := $(MODULE).o
-
-include $(mfdir)/../os/linux/spl/Makefile
diff --git a/module/unicode/Makefile.in b/module/unicode/Makefile.in
deleted file mode 100644
index 59c07c4555b7..000000000000
--- a/module/unicode/Makefile.in
+++ /dev/null
@@ -1,11 +0,0 @@
-ifneq ($(KBUILD_EXTMOD),)
-src = @abs_srcdir@
-obj = @abs_builddir@
-endif
-
-MODULE := zunicode
-
-obj-$(CONFIG_ZFS) := $(MODULE).o
-
-$(MODULE)-objs += u8_textprep.o
-$(MODULE)-objs += uconv.o
diff --git a/module/unicode/u8_textprep.c b/module/unicode/u8_textprep.c
index b6b07b2453af..37d648b2172d 100644
--- a/module/unicode/u8_textprep.c
+++ b/module/unicode/u8_textprep.c
@@ -2129,27 +2129,6 @@ u8_textprep_str(char *inarray, size_t *inlen, char *outarray, size_t *outlen,
 	return (ret_val);
 }
 
-#if defined(_KERNEL)
-static int __init
-unicode_init(void)
-{
-	return (0);
-}
-
-static void __exit
-unicode_fini(void)
-{
-}
-
-module_init(unicode_init);
-module_exit(unicode_fini);
-#endif
-
-ZFS_MODULE_DESCRIPTION("Unicode implementation");
-ZFS_MODULE_AUTHOR(ZFS_META_AUTHOR);
-ZFS_MODULE_LICENSE(ZFS_META_LICENSE);
-ZFS_MODULE_VERSION(ZFS_META_VERSION "-" ZFS_META_RELEASE);
-
 EXPORT_SYMBOL(u8_validate);
 EXPORT_SYMBOL(u8_strcmp);
 EXPORT_SYMBOL(u8_textprep_str);
diff --git a/module/zcommon/Makefile.in b/module/zcommon/Makefile.in
deleted file mode 100644
index ebc538440445..000000000000
--- a/module/zcommon/Makefile.in
+++ /dev/null
@@ -1,28 +0,0 @@
-ifneq ($(KBUILD_EXTMOD),)
-src = @abs_srcdir@
-obj = @abs_builddir@
-endif
-
-MODULE := zcommon
-
-obj-$(CONFIG_ZFS) := $(MODULE).o
-
-# Suppress unused-value warnings in sparc64 architecture headers
-ccflags-$(CONFIG_SPARC64) += -Wno-unused-value
-
-$(MODULE)-objs += cityhash.o
-$(MODULE)-objs += zfeature_common.o
-$(MODULE)-objs += zfs_comutil.o
-$(MODULE)-objs += zfs_deleg.o
-$(MODULE)-objs += zfs_fletcher.o
-$(MODULE)-objs += zfs_fletcher_superscalar.o
-$(MODULE)-objs += zfs_fletcher_superscalar4.o
-$(MODULE)-objs += zfs_namecheck.o
-$(MODULE)-objs += zfs_prop.o
-$(MODULE)-objs += zpool_prop.o
-$(MODULE)-objs += zprop_common.o
-
-$(MODULE)-$(CONFIG_X86) += zfs_fletcher_intel.o
-$(MODULE)-$(CONFIG_X86) += zfs_fletcher_sse.o
-$(MODULE)-$(CONFIG_X86) += zfs_fletcher_avx512.o
-$(MODULE)-$(CONFIG_ARM64) += zfs_fletcher_aarch64_neon.o
diff --git a/module/zcommon/zfs_prop.c b/module/zcommon/zfs_prop.c
index 8b3e774d99ec..500d80a33b6b 100644
--- a/module/zcommon/zfs_prop.c
+++ b/module/zcommon/zfs_prop.c
@@ -1006,7 +1006,10 @@ uint8_t **zfs_kfpu_fpregs;
 EXPORT_SYMBOL(zfs_kfpu_fpregs);
 #endif /* defined(HAVE_KERNEL_FPU_INTERNAL) */
 
-static int __init
+extern int __init zcommon_init(void);
+extern void zcommon_fini(void);
+
+int __init
 zcommon_init(void)
 {
 	int error = kfpu_init();
@@ -1018,22 +1021,19 @@ zcommon_init(void)
 	return (0);
 }
 
-static void __exit
+void
 zcommon_fini(void)
 {
 	fletcher_4_fini();
 	kfpu_fini();
 }
 
+#ifdef __FreeBSD__
 module_init_early(zcommon_init);
 module_exit(zcommon_fini);
-
 #endif
 
-ZFS_MODULE_DESCRIPTION("Generic ZFS support");
-ZFS_MODULE_AUTHOR(ZFS_META_AUTHOR);
-ZFS_MODULE_LICENSE(ZFS_META_LICENSE);
-ZFS_MODULE_VERSION(ZFS_META_VERSION "-" ZFS_META_RELEASE);
+#endif
 
 /* zfs dataset property functions */
 EXPORT_SYMBOL(zfs_userquota_prop_prefixes);
diff --git a/module/zfs/Makefile.in b/module/zfs/Makefile.in
deleted file mode 100644
index 30dc91a7eb59..000000000000
--- a/module/zfs/Makefile.in
+++ /dev/null
@@ -1,158 +0,0 @@
-ifneq ($(KBUILD_EXTMOD),)
-src = @abs_srcdir@
-obj = @abs_builddir@
-mfdir = $(obj)
-else
-mfdir = $(srctree)/$(src)
-endif
-
-MODULE := zfs
-
-obj-$(CONFIG_ZFS) := $(MODULE).o
-
-# Suppress unused-value warnings in sparc64 architecture headers
-ccflags-$(CONFIG_SPARC64) += -Wno-unused-value
-
-$(MODULE)-objs += abd.o
-$(MODULE)-objs += aggsum.o
-$(MODULE)-objs += arc.o
-$(MODULE)-objs += blkptr.o
-$(MODULE)-objs += bplist.o
-$(MODULE)-objs += bpobj.o
-$(MODULE)-objs += bptree.o
-$(MODULE)-objs += btree.o
-$(MODULE)-objs += bqueue.o
-$(MODULE)-objs += dataset_kstats.o
-$(MODULE)-objs += dbuf.o
-$(MODULE)-objs += dbuf_stats.o
-$(MODULE)-objs += ddt.o
-$(MODULE)-objs += ddt_zap.o
-$(MODULE)-objs += dmu.o
-$(MODULE)-objs += dmu_diff.o
-$(MODULE)-objs += dmu_object.o
-$(MODULE)-objs += dmu_objset.o
-$(MODULE)-objs += dmu_recv.o
-$(MODULE)-objs += dmu_redact.o
-$(MODULE)-objs += dmu_send.o
-$(MODULE)-objs += dmu_traverse.o
-$(MODULE)-objs += dmu_tx.o
-$(MODULE)-objs += dmu_zfetch.o
-$(MODULE)-objs += dnode.o
-$(MODULE)-objs += dnode_sync.o
-$(MODULE)-objs += dsl_bookmark.o
-$(MODULE)-objs += dsl_crypt.o
-$(MODULE)-objs += dsl_dataset.o
-$(MODULE)-objs += dsl_deadlist.o
-$(MODULE)-objs += dsl_deleg.o
-$(MODULE)-objs += dsl_destroy.o
-$(MODULE)-objs += dsl_dir.o
-$(MODULE)-objs += dsl_pool.o
-$(MODULE)-objs += dsl_prop.o
-$(MODULE)-objs += dsl_scan.o
-$(MODULE)-objs += dsl_synctask.o
-$(MODULE)-objs += dsl_userhold.o
-$(MODULE)-objs += edonr_zfs.o
-$(MODULE)-objs += fm.o
-$(MODULE)-objs += gzip.o
-$(MODULE)-objs += hkdf.o
-$(MODULE)-objs += lz4.o
-$(MODULE)-objs += lz4_zfs.o
-$(MODULE)-objs += lzjb.o
-$(MODULE)-objs += metaslab.o
-$(MODULE)-objs += mmp.o
-$(MODULE)-objs += multilist.o
-$(MODULE)-objs += objlist.o
-$(MODULE)-objs += pathname.o
-$(MODULE)-objs += range_tree.o
-$(MODULE)-objs += refcount.o
-$(MODULE)-objs += rrwlock.o
-$(MODULE)-objs += sa.o
-$(MODULE)-objs += sha256.o
-$(MODULE)-objs += skein_zfs.o
-$(MODULE)-objs += spa.o
-$(MODULE)-objs += spa_boot.o
-$(MODULE)-objs += spa_checkpoint.o
-$(MODULE)-objs += spa_config.o
-$(MODULE)-objs += spa_errlog.o
-$(MODULE)-objs += spa_history.o
-$(MODULE)-objs += spa_log_spacemap.o
-$(MODULE)-objs += spa_misc.o
-$(MODULE)-objs += spa_stats.o
-$(MODULE)-objs += space_map.o
-$(MODULE)-objs += space_reftree.o
-$(MODULE)-objs += txg.o
-$(MODULE)-objs += uberblock.o
-$(MODULE)-objs += unique.o
-$(MODULE)-objs += vdev.o
-$(MODULE)-objs += vdev_cache.o
-$(MODULE)-objs += vdev_draid.o
-$(MODULE)-objs += vdev_draid_rand.o
-$(MODULE)-objs += vdev_indirect.o
-$(MODULE)-objs += vdev_indirect_births.o
-$(MODULE)-objs += vdev_indirect_mapping.o
-$(MODULE)-objs += vdev_initialize.o
-$(MODULE)-objs += vdev_label.o
-$(MODULE)-objs += vdev_mirror.o
-$(MODULE)-objs += vdev_missing.o
-$(MODULE)-objs += vdev_queue.o
-$(MODULE)-objs += vdev_raidz.o
-$(MODULE)-objs += vdev_raidz_math.o
-$(MODULE)-objs += vdev_raidz_math_scalar.o
-$(MODULE)-objs += vdev_rebuild.o
-$(MODULE)-objs += vdev_removal.o
-$(MODULE)-objs += vdev_root.o
-$(MODULE)-objs += vdev_trim.o
-$(MODULE)-objs += zap.o
-$(MODULE)-objs += zap_leaf.o
-$(MODULE)-objs += zap_micro.o
-$(MODULE)-objs += zcp.o
-$(MODULE)-objs += zcp_get.o
-$(MODULE)-objs += zcp_global.o
-$(MODULE)-objs += zcp_iter.o
-$(MODULE)-objs += zcp_set.o
-$(MODULE)-objs += zcp_synctask.o
-$(MODULE)-objs += zfeature.o
-$(MODULE)-objs += zfs_byteswap.o
-$(MODULE)-objs += zfs_fm.o
-$(MODULE)-objs += zfs_fuid.o
-$(MODULE)-objs += zfs_ioctl.o
-$(MODULE)-objs += zfs_log.o
-$(MODULE)-objs += zfs_onexit.o
-$(MODULE)-objs += zfs_quota.o
-$(MODULE)-objs += zfs_ratelimit.o
-$(MODULE)-objs += zfs_replay.o
-$(MODULE)-objs += zfs_rlock.o
-$(MODULE)-objs += zfs_sa.o
-$(MODULE)-objs += zfs_vnops.o
-$(MODULE)-objs += zil.o
-$(MODULE)-objs += zio.o
-$(MODULE)-objs += zio_checksum.o
-$(MODULE)-objs += zio_compress.o
-$(MODULE)-objs += zio_inject.o
-$(MODULE)-objs += zle.o
-$(MODULE)-objs += zrlock.o
-$(MODULE)-objs += zthr.o
-$(MODULE)-objs += zvol.o
-
-# Suppress incorrect warnings from versions of objtool which are not
-# aware of x86 EVEX prefix instructions used for AVX512.
-OBJECT_FILES_NON_STANDARD_vdev_raidz_math_avx512bw.o := y
-OBJECT_FILES_NON_STANDARD_vdev_raidz_math_avx512f.o := y
-
-$(MODULE)-$(CONFIG_X86) += vdev_raidz_math_sse2.o
-$(MODULE)-$(CONFIG_X86) += vdev_raidz_math_ssse3.o
-$(MODULE)-$(CONFIG_X86) += vdev_raidz_math_avx2.o
-$(MODULE)-$(CONFIG_X86) += vdev_raidz_math_avx512f.o
-$(MODULE)-$(CONFIG_X86) += vdev_raidz_math_avx512bw.o
-
-$(MODULE)-$(CONFIG_ARM64) += vdev_raidz_math_aarch64_neon.o
-$(MODULE)-$(CONFIG_ARM64) += vdev_raidz_math_aarch64_neonx2.o
-
-$(MODULE)-$(CONFIG_PPC) += vdev_raidz_math_powerpc_altivec.o
-$(MODULE)-$(CONFIG_PPC64) += vdev_raidz_math_powerpc_altivec.o
-
-ifeq ($(CONFIG_ALTIVEC),y)
-$(obj)/vdev_raidz_math_powerpc_altivec.o: c_flags += -maltivec
-endif
-
-include $(mfdir)/../os/linux/zfs/Makefile
diff --git a/module/zstd/Makefile.in b/module/zstd/Makefile.in
deleted file mode 100644
index 80096c3e379d..000000000000
--- a/module/zstd/Makefile.in
+++ /dev/null
@@ -1,69 +0,0 @@
-ifneq ($(KBUILD_EXTMOD),)
-src = @abs_srcdir@
-obj = @abs_builddir@
-zstd_include = $(src)/include
-else
-zstd_include = $(srctree)/$(src)/include
-endif
-
-MODULE := zzstd
-
-obj-$(CONFIG_ZFS) := $(MODULE).o
-
-asflags-y := -I$(zstd_include)
-ccflags-y := -I$(zstd_include)
-
-# Zstd uses -O3 by default, so we should follow
-ccflags-y += -O3
-
-# -fno-tree-vectorize gets set for gcc in zstd/common/compiler.h
-# Set it for other compilers, too.
-common_flags := -fno-tree-vectorize
-
-# SSE register return with SSE disabled if -march=znverX is passed
-common_flags += -U__BMI__
-
-# Quiet warnings about frame size due to unused code in unmodified zstd lib
-common_flags += -Wframe-larger-than=20480
-
-ccflags-y += $(common_flags)
-
-vanilla-objs := lib/common/entropy_common.o \
-		lib/common/error_private.o \
-		lib/common/fse_decompress.o \
-		lib/common/pool.o \
-		lib/common/zstd_common.o \
-		lib/compress/fse_compress.o \
-		lib/compress/hist.o \
-		lib/compress/huf_compress.o \
-		lib/compress/zstd_compress_literals.o \
-		lib/compress/zstd_compress_sequences.o \
-		lib/compress/zstd_compress_superblock.o \
-		lib/compress/zstd_compress.o \
-		lib/compress/zstd_double_fast.o \
-		lib/compress/zstd_fast.o \
-		lib/compress/zstd_lazy.o \
-		lib/compress/zstd_ldm.o \
-		lib/compress/zstd_opt.o \
-		lib/decompress/huf_decompress.o \
-		lib/decompress/zstd_ddict.o \
-		lib/decompress/zstd_decompress.o \
-		lib/decompress/zstd_decompress_block.o
-
-# Disable aarch64 neon SIMD instructions for kernel mode
-$(addprefix $(obj)/,$(vanilla-objs)) : ccflags-y += -include $(zstd_include)/aarch64_compat.h -include $(zstd_include)/zstd_compat_wrapper.h -Wp,-w $(common_flags)
-
-$(obj)/zfs_zstd.o: ccflags-y += -include $(zstd_include)/zstd_compat_wrapper.h $(common_flags)
-
-$(MODULE)-objs += zfs_zstd.o
-$(MODULE)-objs += zstd_sparc.o
-$(MODULE)-objs += $(vanilla-objs)
-
-all:
-	mkdir -p lib/common lib/compress lib/decompress
-
-gensymbols:
-	for obj in $(vanilla-objs); do echo; echo "/* $$obj: */"; @OBJDUMP@ -t $$obj | awk '$$2 == "g" && !/ zfs_/ {print "#define\t" $$6 " zfs_" $$6}' | sort; done >> include/zstd_compat_wrapper.h
-
-checksymbols:
-	@OBJDUMP@ -t $(vanilla-objs) | awk '/file format/ {print}  $$2 == "g" && !/ zfs_/ {++ret; print}  END {exit ret}'
diff --git a/module/zstd/README.md b/module/zstd/README.md
index 26d618b61b6e..7ad00e0bd804 100644
--- a/module/zstd/README.md
+++ b/module/zstd/README.md
@@ -9,7 +9,7 @@ library, besides upgrading to a newer ZSTD release.
 
 Tree structure:
 
-* `zfs_zstd.c` is the actual `zzstd` kernel module.
+* `zfs_zstd.c` are the actual `zfs` kernel module hooks.
 * `lib/` contains the unmodified version of the `Zstandard` library
 * `zstd-in.c` is our template file for generating the single-file library
 * `include/`: This directory contains supplemental includes for platform
@@ -25,16 +25,7 @@ To update ZSTD the following steps need to be taken:
 `grep include [path to zstd]/contrib/single_file_libs/zstd-in.c  | awk '{ print $2 }'`
 3. Remove debug.c, threading.c, and zstdmt_compress.c.
 4. Update Makefiles with resulting file lists.
-
-~~~
-
-Note: if the zstd library for zfs is updated to a newer version,
-the macro list in include/zstd_compat_wrapper.h usually needs to be updated.
-this can be done with some hand crafting of the output of the following
-script (on the object file generated from the "single-file library" script in zstd's
-contrib/single_file_libs):
-`nm zstd.o | awk '{print "#define "$3 " zfs_" $3}' > macrotable`
-
+5. Follow symbol renaming notes in `include/zstd_compat_wrapper.h`
 
 ## Altering ZSTD and breaking changes
 
diff --git a/module/zstd/include/zstd_compat_wrapper.h b/module/zstd/include/zstd_compat_wrapper.h
index de428175c7df..2c4baad27d4e 100644
--- a/module/zstd/include/zstd_compat_wrapper.h
+++ b/module/zstd/include/zstd_compat_wrapper.h
@@ -38,7 +38,7 @@
  * This will cause a symbol collision with the older in-kernel zstd library.
  *
  * On update, truncate this file at the scissor line, rebuild the module,
- * and make gensymbols.
+ * and make gen-zstd-symbols.
  */
 
 #define	MEM_MODULE
diff --git a/module/zstd/zfs_zstd.c b/module/zstd/zfs_zstd.c
index 5ae164663988..04e52ae3cec6 100644
--- a/module/zstd/zfs_zstd.c
+++ b/module/zstd/zfs_zstd.c
@@ -702,7 +702,7 @@ zstd_meminit(void)
 }
 
 /* Release object from pool and free memory */
-static void __exit
+static void
 release_pool(struct zstd_pool *pool)
 {
 	mutex_destroy(&pool->barrier);
@@ -712,7 +712,7 @@ release_pool(struct zstd_pool *pool)
 }
 
 /* Release memory pool objects */
-static void __exit
+static void
 zstd_mempool_deinit(void)
 {
 	for (int i = 0; i < ZSTD_POOL_MAX; i++) {
@@ -758,7 +758,7 @@ zstd_init(void)
 	return (0);
 }
 
-extern void __exit
+extern void
 zstd_fini(void)
 {
 	/* Deinitialize kstat */
@@ -776,12 +776,10 @@ zstd_fini(void)
 }
 
 #if defined(_KERNEL)
+#ifdef __FreeBSD__
 module_init(zstd_init);
 module_exit(zstd_fini);
-
-ZFS_MODULE_DESCRIPTION("ZSTD Compression for ZFS");
-ZFS_MODULE_LICENSE("Dual BSD/GPL");
-ZFS_MODULE_VERSION(ZSTD_VERSION_STRING "a");
+#endif
 
 EXPORT_SYMBOL(zfs_zstd_compress);
 EXPORT_SYMBOL(zfs_zstd_decompress_level);
diff --git a/rpm/generic/zfs-kmod.spec.in b/rpm/generic/zfs-kmod.spec.in
index 53b1e1385159..4ed719b8fe14 100644
--- a/rpm/generic/zfs-kmod.spec.in
+++ b/rpm/generic/zfs-kmod.spec.in
@@ -162,7 +162,7 @@ for kernel_version in %{?kernel_versions}; do
     cd ..
 done
 # find-debuginfo.sh only considers executables
-chmod u+x ${RPM_BUILD_ROOT}%{kmodinstdir_prefix}/*/extra/*/*/*
+chmod u+x ${RPM_BUILD_ROOT}%{kmodinstdir_prefix}/*/extra/*/*
 %{?akmod_install}
 
 
diff --git a/rpm/redhat/zfs-kmod.spec.in b/rpm/redhat/zfs-kmod.spec.in
index 7b74fdc51f43..2cb0623aa06f 100644
--- a/rpm/redhat/zfs-kmod.spec.in
+++ b/rpm/redhat/zfs-kmod.spec.in
@@ -82,7 +82,7 @@ make install \
 %{__rm} -f %{buildroot}/lib/modules/%{kverrel}/modules.*
 
 # find-debuginfo.sh only considers executables
-%{__chmod} u+x  %{buildroot}/lib/modules/%{kverrel}/extra/*/*/*
+%{__chmod} u+x  %{buildroot}/lib/modules/%{kverrel}/extra/*/*
 
 %clean
 rm -rf $RPM_BUILD_ROOT
diff --git a/scripts/Makefile.am b/scripts/Makefile.am
index e2772cf1d605..fffeb6b212d5 100644
--- a/scripts/Makefile.am
+++ b/scripts/Makefile.am
@@ -54,16 +54,9 @@ export INSTALL_MOUNT_HELPER_DIR=@mounthelperdir@
 export INSTALL_SYSCONF_DIR=@sysconfdir@
 export INSTALL_PYTHON_DIR=@pythonsitedir@
 
-export KMOD_SPL=@abs_top_builddir@/module/spl/spl.ko
-export KMOD_ZAVL=@abs_top_builddir@/module/avl/zavl.ko
-export KMOD_ZNVPAIR=@abs_top_builddir@/module/nvpair/znvpair.ko
-export KMOD_ZUNICODE=@abs_top_builddir@/module/unicode/zunicode.ko
-export KMOD_ZCOMMON=@abs_top_builddir@/module/zcommon/zcommon.ko
-export KMOD_ZLUA=@abs_top_builddir@/module/lua/zlua.ko
-export KMOD_ICP=@abs_top_builddir@/module/icp/icp.ko
-export KMOD_ZFS=@abs_top_builddir@/module/zfs/zfs.ko
+export KMOD_SPL=@abs_top_builddir@/module/spl.ko
+export KMOD_ZFS=@abs_top_builddir@/module/zfs.ko
 export KMOD_FREEBSD=@abs_top_builddir@/module/openzfs.ko
-export KMOD_ZZSTD=@abs_top_builddir@/module/zstd/zzstd.ko
 endef
 
 export EXTRA_ENVIRONMENT
diff --git a/scripts/dkms.mkconf b/scripts/dkms.mkconf
index 4090efa087f7..0bd383420435 100755
--- a/scripts/dkms.mkconf
+++ b/scripts/dkms.mkconf
@@ -77,38 +77,10 @@ STRIP[0]="\$(
   && echo -n no
 )"
 STRIP[1]="\${STRIP[0]}"
-STRIP[2]="\${STRIP[0]}"
-STRIP[3]="\${STRIP[0]}"
-STRIP[4]="\${STRIP[0]}"
-STRIP[5]="\${STRIP[0]}"
-STRIP[6]="\${STRIP[0]}"
-STRIP[7]="\${STRIP[0]}"
-STRIP[8]="\${STRIP[0]}"
-BUILT_MODULE_NAME[0]="zavl"
-BUILT_MODULE_LOCATION[0]="module/avl/"
-DEST_MODULE_LOCATION[0]="/extra/avl/avl"
-BUILT_MODULE_NAME[1]="znvpair"
-BUILT_MODULE_LOCATION[1]="module/nvpair/"
-DEST_MODULE_LOCATION[1]="/extra/nvpair/znvpair"
-BUILT_MODULE_NAME[2]="zunicode"
-BUILT_MODULE_LOCATION[2]="module/unicode/"
-DEST_MODULE_LOCATION[2]="/extra/unicode/zunicode"
-BUILT_MODULE_NAME[3]="zcommon"
-BUILT_MODULE_LOCATION[3]="module/zcommon/"
-DEST_MODULE_LOCATION[3]="/extra/zcommon/zcommon"
-BUILT_MODULE_NAME[4]="zfs"
-BUILT_MODULE_LOCATION[4]="module/zfs/"
-DEST_MODULE_LOCATION[4]="/extra/zfs/zfs"
-BUILT_MODULE_NAME[5]="icp"
-BUILT_MODULE_LOCATION[5]="module/icp/"
-DEST_MODULE_LOCATION[5]="/extra/icp/icp"
-BUILT_MODULE_NAME[6]="zlua"
-BUILT_MODULE_LOCATION[6]="module/lua/"
-DEST_MODULE_LOCATION[6]="/extra/lua/zlua"
-BUILT_MODULE_NAME[7]="spl"
-BUILT_MODULE_LOCATION[7]="module/spl/"
-DEST_MODULE_LOCATION[7]="/extra/spl/spl"
-BUILT_MODULE_NAME[8]="zzstd"
-BUILT_MODULE_LOCATION[8]="module/zstd/"
-DEST_MODULE_LOCATION[8]="/extra/zstd/zzstd"
+BUILT_MODULE_NAME[0]="zfs"
+BUILT_MODULE_LOCATION[0]="module/"
+DEST_MODULE_LOCATION[0]="/extra"
+BUILT_MODULE_NAME[1]="spl"
+BUILT_MODULE_LOCATION[1]="module/"
+DEST_MODULE_LOCATION[1]="/extra"
 EOF
diff --git a/scripts/zfs.sh b/scripts/zfs.sh
index edce2cbd4c64..9ead0316d9ee 100755
--- a/scripts/zfs.sh
+++ b/scripts/zfs.sh
@@ -3,7 +3,7 @@
 # A simple script to load/unload the ZFS module stack.
 #
 
-BASE_DIR=$(dirname "$0")
+BASE_DIR=${0%/*}
 SCRIPT_COMMON=common.sh
 if [ -f "${BASE_DIR}/${SCRIPT_COMMON}" ]; then
 	. "${BASE_DIR}/${SCRIPT_COMMON}"
@@ -11,7 +11,6 @@ else
 	echo "Missing helper script ${SCRIPT_COMMON}" && exit 1
 fi
 
-PROG=zfs.sh
 VERBOSE="no"
 UNLOAD="no"
 LOAD="yes"
@@ -19,44 +18,35 @@ STACK_TRACER="no"
 
 ZED_PIDFILE=${ZED_PIDFILE:-/var/run/zed.pid}
 LDMOD=${LDMOD:-/sbin/modprobe}
+DELMOD=${DELMOD:-/sbin/modprobe -r}
 
 KMOD_ZLIB_DEFLATE=${KMOD_ZLIB_DEFLATE:-zlib_deflate}
 KMOD_ZLIB_INFLATE=${KMOD_ZLIB_INFLATE:-zlib_inflate}
 KMOD_SPL=${KMOD_SPL:-spl}
-KMOD_ZAVL=${KMOD_ZAVL:-zavl}
-KMOD_ZNVPAIR=${KMOD_ZNVPAIR:-znvpair}
-KMOD_ZUNICODE=${KMOD_ZUNICODE:-zunicode}
-KMOD_ZCOMMON=${KMOD_ZCOMMON:-zcommon}
-KMOD_ZLUA=${KMOD_ZLUA:-zlua}
-KMOD_ICP=${KMOD_ICP:-icp}
 KMOD_ZFS=${KMOD_ZFS:-zfs}
 KMOD_FREEBSD=${KMOD_FREEBSD:-openzfs}
-KMOD_ZZSTD=${KMOD_ZZSTD:-zzstd}
 
 
 usage() {
-cat << EOF
+	cat << EOF
 USAGE:
-$0 [hvudS] [module-options]
+$0 [hvudS]
 
 DESCRIPTION:
 	Load/unload the ZFS module stack.
 
 OPTIONS:
-	-h      Show this message
-	-v      Verbose
+	-h	Show this message
+	-v	Verbose
 	-r	Reload modules
-	-u      Unload modules
-	-S      Enable kernel stack tracer
+	-u	Unload modules
+	-S	Enable kernel stack tracer
 EOF
+	exit 1
 }
 
 while getopts 'hvruS' OPTION; do
 	case $OPTION in
-	h)
-		usage
-		exit 1
-		;;
 	v)
 		VERBOSE="yes"
 		;;
@@ -71,18 +61,17 @@ while getopts 'hvruS' OPTION; do
 	S)
 		STACK_TRACER="yes"
 		;;
-	?)
-		usage
-		exit
-		;;
 	*)
+		usage
 		;;
 	esac
 done
+shift $(( OPTIND - 1 ))
+[ $# -eq 0 ] || usage
 
 kill_zed() {
 	if [ -f "$ZED_PIDFILE" ]; then
-		PID=$(cat "$ZED_PIDFILE")
+		read -r PID <"$ZED_PIDFILE"
 		kill "$PID"
 	fi
 }
@@ -91,8 +80,7 @@ check_modules_linux() {
 	LOADED_MODULES=""
 	MISSING_MODULES=""
 
-	for KMOD in $KMOD_SPL $KMOD_ZAVL $KMOD_ZNVPAIR $KMOD_ZUNICODE $KMOD_ZCOMMON \
-	    $KMOD_ZLUA $KMOD_ZZSTD $KMOD_ICP $KMOD_ZFS; do
+	for KMOD in $KMOD_SPL $KMOD_ZFS; do
 		NAME="${KMOD##*/}"
 		NAME="${NAME%.ko}"
 
@@ -106,7 +94,7 @@ check_modules_linux() {
 	done
 
 	if [ -n "$LOADED_MODULES" ]; then
-		printf "Unload the kernel modules by running '%s -u':\n" "$PROG"
+		printf "Unload the kernel modules by running '%s -u':\n" "$0"
 		printf "%b" "$LOADED_MODULES"
 		exit 1
 	fi
@@ -123,10 +111,11 @@ check_modules_linux() {
 load_module_linux() {
 	KMOD=$1
 
-	FILE=$(modinfo "$KMOD" | awk '/^filename:/ {print $2}')
-	VERSION=$(modinfo "$KMOD" | awk '/^version:/ {print $2}')
+	FILE=$(modinfo "$KMOD" 2>&1 | awk 'NR == 1 && /zlib/ && /not found/ {print "(builtin)"; exit}  /^filename:/ {print $2}')
+	[ "$FILE" = "(builtin)" ] && return
 
 	if [ "$VERBOSE" = "yes" ]; then
+		VERSION=$(modinfo "$KMOD" | awk '/^version:/ {print $2}')
 		echo "Loading: $FILE ($VERSION)"
 	fi
 
@@ -151,17 +140,7 @@ load_modules_freebsd() {
 load_modules_linux() {
 	mkdir -p /etc/zfs
 
-	if modinfo "$KMOD_ZLIB_DEFLATE" >/dev/null 2>&1; then
-		modprobe "$KMOD_ZLIB_DEFLATE" >/dev/null 2>&1
-	fi
-
-	if modinfo "$KMOD_ZLIB_INFLATE">/dev/null 2>&1; then
-		modprobe "$KMOD_ZLIB_INFLATE" >/dev/null 2>&1
-	fi
-
-	for KMOD in $KMOD_SPL $KMOD_ZAVL $KMOD_ZNVPAIR \
-	    $KMOD_ZUNICODE $KMOD_ZCOMMON $KMOD_ZLUA $KMOD_ZZSTD \
-	    $KMOD_ICP $KMOD_ZFS; do
+	for KMOD in "$KMOD_ZLIB_DEFLATE" "$KMOD_ZLIB_INFLATE" $KMOD_SPL $KMOD_ZFS; do
 		load_module_linux "$KMOD" || return 1
 	done
 
@@ -172,23 +151,6 @@ load_modules_linux() {
 	return 0
 }
 
-unload_module_linux() {
-	KMOD=$1
-
-	NAME="${KMOD##*/}"
-	NAME="${NAME%.ko}"
-	FILE=$(modinfo "$KMOD" | awk '/^filename:/ {print $2}')
-	VERSION=$(modinfo "$KMOD" | awk '/^version:/ {print $2}')
-
-	if [ "$VERBOSE" = "yes" ]; then
-		echo "Unloading: $KMOD ($VERSION)"
-	fi
-
-	rmmod "$NAME" || echo "Failed to unload $NAME"
-
-	return 0
-}
-
 unload_modules_freebsd() {
 	kldunload "$KMOD_FREEBSD" || echo "Failed to unload $KMOD_FREEBSD"
 
@@ -200,33 +162,13 @@ unload_modules_freebsd() {
 }
 
 unload_modules_linux() {
-	for KMOD in $KMOD_ZFS $KMOD_ICP $KMOD_ZZSTD $KMOD_ZLUA $KMOD_ZCOMMON \
-	    $KMOD_ZUNICODE $KMOD_ZNVPAIR  $KMOD_ZAVL $KMOD_SPL; do
-		NAME="${KMOD##*/}"
-		NAME="${NAME%.ko}"
-		USE_COUNT=$(lsmod | awk '/^'"${NAME}"'/ {print $3}')
-
-		if [ "$USE_COUNT" = "0" ] ; then
-			unload_module_linux "$KMOD" || return 1
-		elif [ "$USE_COUNT" != "" ] ; then
-			echo "Module ${NAME} is still in use!"
-			return 1
-		fi
-	done
-
-	if modinfo "$KMOD_ZLIB_DEFLATE" >/dev/null 2>&1; then
-		modprobe -r "$KMOD_ZLIB_DEFLATE" >/dev/null 2>&1
-	fi
-
-	if modinfo "$KMOD_ZLIB_INFLATE">/dev/null 2>&1; then
-		modprobe -r "$KMOD_ZLIB_INFLATE" >/dev/null 2>&1
-	fi
+	NAME="${KMOD_ZFS##*/}"
+	NAME="${NAME%.ko}"
+	$DELMOD "$NAME" || return
 
 	if [ "$VERBOSE" = "yes" ]; then
 		echo "Successfully unloaded ZFS module stack"
 	fi
-
-	return 0
 }
 
 stack_clear_linux() {
@@ -245,8 +187,7 @@ stack_check_linux() {
 	STACK_LIMIT=15362
 
 	if [ -e "$STACK_MAX_SIZE" ]; then
-		STACK_SIZE=$(cat "$STACK_MAX_SIZE")
-
+		read -r STACK_SIZE <"$STACK_MAX_SIZE"
 		if [ "$STACK_SIZE" -ge "$STACK_LIMIT" ]; then
 			echo
 			echo "Warning: max stack size $STACK_SIZE bytes"
@@ -267,15 +208,15 @@ if [ "$UNLOAD" = "yes" ]; then
 	umount -t zfs -a
 	case $UNAME in
 		FreeBSD)
-	           unload_modules_freebsd
+		   unload_modules_freebsd
 		   ;;
 		Linux)
-	           stack_check_linux
-	           unload_modules_linux
+		   stack_check_linux
+		   unload_modules_linux
 		   ;;
 		*)
-	           echo "unknown system: $UNAME" >&2
-	           exit 1
+		   echo "unknown system: $UNAME" >&2
+		   exit 1
 		   ;;
 	esac
 fi
@@ -287,13 +228,13 @@ if [ "$LOAD" = "yes" ]; then
 		Linux)
 		   stack_clear_linux
 		   check_modules_linux
-		   load_modules_linux "$@"
+		   load_modules_linux
 		   udevadm trigger
 		   udevadm settle
 		   ;;
 		*)
-	           echo "unknown system: $UNAME" >&2
-	           exit 1
+		   echo "unknown system: $UNAME" >&2
+		   exit 1
 		   ;;
 	esac
 fi
diff --git a/scripts/zfs2zol-patch.sed b/scripts/zfs2zol-patch.sed
index 99824d6dd4af..2d744cd5de52 100755
--- a/scripts/zfs2zol-patch.sed
+++ b/scripts/zfs2zol-patch.sed
@@ -19,7 +19,7 @@ s:usr/src/test/zfs-tests/runfiles:tests/runfiles:g
 s:usr/src/test/zfs-tests/tests/functional:tests/zfs-tests/tests/functional:g
 s:usr/src/test/zfs-tests/tests/perf:tests/zfs-tests/tests/perf:g
 s:usr/src/test/test-runner/cmd/run.py:tests/test-runner/cmd/test-runner.py:g
-s/usr\/src\/common\/zfs\/\(.*\)\.c/module\/zcommon\/\1.c/g
+s:usr/src/common/zfs/\(.*\)\.c:module/zcommon/\1.c:g
 
 # crypto framework
 s:usr/src/common/crypto:module/icp/algs:g
diff --git a/tests/zfs-tests/include/libtest.shlib b/tests/zfs-tests/include/libtest.shlib
index 3917dc32bd81..b24ba6cb6615 100644
--- a/tests/zfs-tests/include/libtest.shlib
+++ b/tests/zfs-tests/include/libtest.shlib
@@ -3264,7 +3264,6 @@ function set_tunable_impl
 	typeset name="$1"
 	typeset value="$2"
 	typeset mdb_cmd="$3"
-	typeset module="${4:-zfs}"
 
 	eval "typeset tunable=\$$name"
 	case "$tunable" in
@@ -3283,14 +3282,13 @@ function set_tunable_impl
 
 	case "$UNAME" in
 	Linux)
-		typeset zfs_tunables="/sys/module/$module/parameters"
+		typeset zfs_tunables="/sys/module/zfs/parameters"
 		echo "$value" >"$zfs_tunables/$tunable"
 		;;
 	FreeBSD)
 		sysctl vfs.zfs.$tunable=$value
 		;;
 	SunOS)
-		[[ "$module" -eq "zfs" ]] || return 1
 		echo "${tunable}/${mdb_cmd}0t${value}" | mdb -kw
 		;;
 	esac
diff --git a/tests/zfs-tests/tests/functional/cli_root/zfs_rename/zfs_rename_014_neg.ksh b/tests/zfs-tests/tests/functional/cli_root/zfs_rename/zfs_rename_014_neg.ksh
index 1c962608d784..57bae24277e1 100755
--- a/tests/zfs-tests/tests/functional/cli_root/zfs_rename/zfs_rename_014_neg.ksh
+++ b/tests/zfs-tests/tests/functional/cli_root/zfs_rename/zfs_rename_014_neg.ksh
@@ -81,7 +81,7 @@ function nesting_cleanup
 	# before resetting it, it will be left at the modified
 	# value for the remaining tests. That's the reason
 	# we reset it again here just in case.
-	log_must set_tunable_impl MAX_DATASET_NESTING 50 Z zcommon
+	log_must set_tunable64 MAX_DATASET_NESTING 50 Z
 }
 
 log_onexit nesting_cleanup
@@ -93,13 +93,13 @@ log_must zfs create -p $TESTPOOL/$dsC16
 log_mustnot zfs rename $TESTPOOL/$dsA02 $TESTPOOL/$dsB15A
 
 # extend limit
-log_must set_tunable_impl MAX_DATASET_NESTING 64 Z zcommon
+log_must set_tunable64 MAX_DATASET_NESTING 64 Z
 
 log_mustnot zfs rename $TESTPOOL/$dsA02 $TESTPOOL/$dsB16A
 log_must zfs rename $TESTPOOL/$dsA02 $TESTPOOL/$dsB15A
 
 # bring back old limit
-log_must set_tunable_impl MAX_DATASET_NESTING 50 Z zcommon
+log_must set_tunable64 MAX_DATASET_NESTING 50 Z
 
 log_mustnot zfs rename $TESTPOOL/$dsC01 $TESTPOOL/$dsB15A47C
 log_must zfs rename $TESTPOOL/$dsB15A47A $TESTPOOL/$dsB15A47B
diff --git a/tests/zfs-tests/tests/functional/simd/simd_supported.ksh b/tests/zfs-tests/tests/functional/simd/simd_supported.ksh
index 8b45e51bc257..1c89824e02fd 100755
--- a/tests/zfs-tests/tests/functional/simd/simd_supported.ksh
+++ b/tests/zfs-tests/tests/functional/simd/simd_supported.ksh
@@ -32,7 +32,7 @@
 #
 # STRATEGY:
 #	1. Test if we are running on a Linux x86 system with SSE support
-#       2. If so, check if the zfs_fletcher_4_impl module parameter contains
+#	2. If so, check if the zfs_fletcher_4_impl module parameter contains
 #	   a sse implementation
 #	3. If not fail the test, otherwise pass it
 
@@ -44,7 +44,7 @@ fi
 
 case "$(uname -m)" in
 i?86|x86_64)
-	typeset -R modparam="/sys/module/zcommon/parameters/zfs_fletcher_4_impl"
+	typeset -R modparam="/sys/module/zfs/parameters/zfs_fletcher_4_impl"
 	if awk '/^flags/ {exit !/sse/}' /proc/cpuinfo; then
 		log_must grep -q sse "$modparam"
 		log_pass "SIMD instructions supported"