Retire legacy test infrastructure

* Removed zpios kmod, utility, headers and man page.

* Removed unused scripts zpios-profile/*, zpios-test/*,
  zpool-config/*, smb.sh, zpios-sanity.sh, zpios-survey.sh,
  zpios.sh, and zpool-create.sh.

* Removed zfs-script-config.sh.in.  When building 'make' generates
  a common.sh with in-tree path information from the common.sh.in
  template.  This file and sourced by the test scripts and used
  for in-tree testing, it is not included in the packages.  When
  building packages 'make install' uses the same template to
  create a new common.sh which is appropriate for the packaging.

* Removed unused functions/variables from scripts/common.sh.in.
  Only minimal path information and configuration environment
  variables remain.

* Removed unused scripts from scripts/ directory.

* Remaining shell scripts in the scripts directory updated to
  cleanly pass shellcheck and added to checked scripts.

* Renamed tests/test-runner/cmd/ to tests/test-runner/bin/ to
  match install location name.

* Removed last traces of the --enable-debug-dmu-tx configure
  options which was retired some time ago.

Reviewed-by: Giuseppe Di Natale <dinatale2@llnl.gov>
Signed-off-by: Brian Behlendorf <behlendorf1@llnl.gov>
Closes #6509

.gitignore

@@ -39,8 +39,6 @@ Makefile.in
 /zfs_config.h.in
 /zfs.release
 /stamp-h1
-/.script-config
-/zfs-script-config.sh
 /aclocal.m4
 /autom4te.cache
 

COPYRIGHT

@@ -10,10 +10,6 @@ and attributed properly.  These exceptions include, but are not limited
 to, the vdev_disk.c and zvol.c implementation which are licensed under
 the CDDL.
 
-The zpios test code is originally derived from the Lustre pios test code
-which is licensed under the GPLv2.  As such the heavily modified zpios
-kernel test code also remains licensed under the GPLv2.
-
 The latest stable and development versions of this port can be downloaded
 from the official ZFS on Linux site located at:
 

Makefile.am

@@ -29,9 +29,8 @@ distclean-local::
 		-o -name .pc -o -name .hg -o -name .git \) -prune -o \
 		\( -name '*.orig' -o -name '*.rej' -o -name '*~' \
 		-o -name '*.bak' -o -name '#*#' -o -name '.*.orig' \
-		-o -name '.*.rej' -o -name '.script-config' -o -size 0 \
-		-o -name '*%' -o -name '.*.cmd' -o -name 'core' \
-		-o -name 'Makefile' -o -name 'Module.symvers' \
+		-o -name '.*.rej' -o -size 0 -o -name '*%' -o -name '.*.cmd' \
+		-o -name 'core' -o -name 'Makefile' -o -name 'Module.symvers' \
 		-o -name '*.order' -o -name '*.markers' \) \
 		-type f -print | xargs $(RM)
 
@@ -52,11 +51,8 @@ cstyle:
 
 shellcheck:
 	@if type shellcheck > /dev/null 2>&1; then \
-		shellcheck --exclude=SC1090 --format=gcc scripts/paxcheck.sh \
-			scripts/zloop.sh \
-			scripts/zfs-tests.sh \
-			scripts/zfs.sh \
-			scripts/commitcheck.sh \
+		shellcheck --exclude=SC1090 --format=gcc \
+			$$(find scripts/*.sh -type f) \
 			$$(find cmd/zed/zed.d/*.sh -type f) \
 			$$(find cmd/zpool/zpool.d/* -executable); \
 	fi

cmd/Makefile.am

@@ -1,3 +1,3 @@
-SUBDIRS  = zfs zpool zdb zhack zinject zstreamdump ztest zpios
+SUBDIRS  = zfs zpool zdb zhack zinject zstreamdump ztest
 SUBDIRS += mount_zfs fsck_zfs zvol_id vdev_id arcstat dbufstat zed
 SUBDIRS += arc_summary raidz_test zgenhostid