Added Mark Maybee's changes to allow for Direct IO with read/writes. …

.github/CONTRIBUTING.md

@@ -51,7 +51,7 @@ configure option should be set. This will enable additional correctness
 checks and all the ASSERTs to help quickly catch potential issues.
 
 In addition, there are numerous utilities and debugging files which
-provide visibility in to the inner workings of ZFS.  The most useful
+provide visibility into the inner workings of ZFS.  The most useful
 of these tools are discussed in detail on the [debugging ZFS wiki
 page](https://github.com/zfsonlinux/zfs/wiki/Debugging).
 

.gitignore

@@ -63,3 +63,14 @@ cscope.*
 *.log
 venv
 
+#
+# Module leftovers
+#
+/module/avl/zavl.mod
+/module/icp/icp.mod
+/module/lua/zlua.mod
+/module/nvpair/znvpair.mod
+/module/spl/spl.mod
+/module/unicode/zunicode.mod
+/module/zcommon/zcommon.mod
+/module/zfs/zfs.mod

Makefile.am

@@ -25,11 +25,16 @@ EXTRA_DIST += META AUTHORS COPYRIGHT LICENSE NEWS NOTICE README.md
 EXTRA_DIST += CODE_OF_CONDUCT.md
 
 # Include all the extra licensing information for modules
-EXTRA_DIST += module/icp/algs/skein/THIRDPARTYLICENSE module/icp/algs/skein/THIRDPARTYLICENSE.descrip
-EXTRA_DIST += module/icp/asm-x86_64/aes/THIRDPARTYLICENSE.gladman module/icp/asm-x86_64/aes/THIRDPARTYLICENSE.gladman.descrip
-EXTRA_DIST += module/icp/asm-x86_64/aes/THIRDPARTYLICENSE.openssl module/icp/asm-x86_64/aes/THIRDPARTYLICENSE.openssl.descrip
-EXTRA_DIST += module/spl/THIRDPARTYLICENSE.gplv2 module/spl/THIRDPARTYLICENSE.gplv2.descrip
-EXTRA_DIST += module/zfs/THIRDPARTYLICENSE.cityhash module/zfs/THIRDPARTYLICENSE.cityhash.descrip
+EXTRA_DIST += module/icp/algs/skein/THIRDPARTYLICENSE
+EXTRA_DIST += module/icp/algs/skein/THIRDPARTYLICENSE.descrip
+EXTRA_DIST += module/icp/asm-x86_64/aes/THIRDPARTYLICENSE.gladman
+EXTRA_DIST += module/icp/asm-x86_64/aes/THIRDPARTYLICENSE.gladman.descrip
+EXTRA_DIST += module/icp/asm-x86_64/aes/THIRDPARTYLICENSE.openssl
+EXTRA_DIST += module/icp/asm-x86_64/aes/THIRDPARTYLICENSE.openssl.descrip
+EXTRA_DIST += module/spl/THIRDPARTYLICENSE.gplv2
+EXTRA_DIST += module/spl/THIRDPARTYLICENSE.gplv2.descrip
+EXTRA_DIST += module/zfs/THIRDPARTYLICENSE.cityhash
+EXTRA_DIST += module/zfs/THIRDPARTYLICENSE.cityhash.descrip
 
 @CODE_COVERAGE_RULES@
 
@@ -39,6 +44,7 @@ gitrev:
 
 BUILT_SOURCES = gitrev
 
+# Double-colon rules are allowed; there are multiple independent definitions.
 distclean-local::
 	-$(RM) -R autom4te*.cache
 	-find . \( -name SCCS -o -name BitKeeper -o -name .svn -o -name CVS \

cmd/arc_summary/Makefile.am

@@ -1,11 +1,17 @@
 EXTRA_DIST = arc_summary2 arc_summary3
 
+transform = $(program_transform_name)
+
 if USING_PYTHON_2
 dist_bin_SCRIPTS = arc_summary2
 install-exec-hook:
-	mv $(DESTDIR)$(bindir)/arc_summary2 $(DESTDIR)$(bindir)/arc_summary
+	before=$$(echo arc_summary2 | sed '$(transform)'); \
+	after=$$(echo arc_summary | sed '$(transform)'); \
+	mv "$(DESTDIR)$(bindir)/$$before" "$(DESTDIR)$(bindir)/$$after"
 else
 dist_bin_SCRIPTS = arc_summary3
 install-exec-hook:
-	mv $(DESTDIR)$(bindir)/arc_summary3 $(DESTDIR)$(bindir)/arc_summary
+	before=$$(echo arc_summary3 | sed '$(transform)'); \
+	after=$$(echo arc_summary | sed '$(transform)'); \
+	mv "$(DESTDIR)$(bindir)/$$before" "$(DESTDIR)$(bindir)/$$after"
 endif

cmd/arc_summary/arc_summary3

@@ -43,7 +43,7 @@ import subprocess
 import sys
 import time
 
-DECRIPTION = 'Print ARC and other statistics for ZFS on Linux'
+DESCRIPTION = 'Print ARC and other statistics for ZFS on Linux'
 INDENT = ' '*8
 LINE_LENGTH = 72
 PROC_PATH = '/proc/spl/kstat/zfs/'
@@ -65,7 +65,7 @@ SECTION_PATHS = {'arc': 'arcstats',
                  'zfetch': 'zfetchstats',
                  'zil': 'zil'}
 
-parser = argparse.ArgumentParser(description=DECRIPTION)
+parser = argparse.ArgumentParser(description=DESCRIPTION)
 parser.add_argument('-a', '--alternate', action='store_true', default=False,
                     help='use alternate formatting for tunables and SPL',
                     dest='alt')
@@ -284,7 +284,7 @@ def get_spl_tunables(PATH):
 
 
 def get_descriptions(request):
-    """Get the decriptions of the Solaris Porting Layer (SPL) or the
+    """Get the descriptions of the Solaris Porting Layer (SPL) or the
     tunables, return with minimal formatting.
     """
 
@@ -708,7 +708,7 @@ def section_l2arc(kstats_dict):
 
 def section_spl(*_):
     """Print the SPL parameters, if requested with alternative format
-    and/or decriptions. This does not use kstats.
+    and/or descriptions. This does not use kstats.
     """
 
     spls = get_spl_tunables(SPL_PATH)
@@ -725,7 +725,7 @@ def section_spl(*_):
             try:
                 print(INDENT+'#', descriptions[key])
             except KeyError:
-                print(INDENT+'# (No decription found)')  # paranoid
+                print(INDENT+'# (No description found)')  # paranoid
 
         print(format_raw_line(key, value))
 
@@ -734,7 +734,7 @@ def section_spl(*_):
 
 def section_tunables(*_):
     """Print the tunables, if requested with alternative format and/or
-    decriptions. This does not use kstasts.
+    descriptions. This does not use kstasts.
     """
 
     tunables = get_spl_tunables(TUNABLES_PATH)
@@ -751,7 +751,7 @@ def section_tunables(*_):
             try:
                 print(INDENT+'#', descriptions[key])
             except KeyError:
-                print(INDENT+'# (No decription found)')  # paranoid
+                print(INDENT+'# (No description found)')  # paranoid
 
         print(format_raw_line(key, value))
 

cmd/arcstat/Makefile.am

@@ -1,7 +1,7 @@
 dist_bin_SCRIPTS = arcstat
 
 #
-# The arcstat script is compatibile with both Python 2.6 and 3.4.
+# The arcstat script is compatible with both Python 2.6 and 3.4.
 # As such the python 3 shebang can be replaced at install time when
 # targeting a python 2 system.  This allows us to maintain a single
 # version of the source.

cmd/dbufstat/Makefile.am

@@ -1,7 +1,7 @@
 dist_bin_SCRIPTS = dbufstat
 
 #
-# The dbufstat script is compatibile with both Python 2.6 and 3.4.
+# The dbufstat script is compatible with both Python 2.6 and 3.4.
 # As such the python 3 shebang can be replaced at install time when
 # targeting a python 2 system.  This allows us to maintain a single
 # version of the source.

cmd/fsck_zfs/fsck.zfs

@@ -1,6 +1,6 @@
 #!/bin/sh
 #
-# fsck.zfs: A fsck helper to accomidate distributions that expect
+# fsck.zfs: A fsck helper to accommodate distributions that expect
 # to be able to execute a fsck on all filesystem types.  Currently
 # this script does nothing but it could be extended to act as a
 # compatibility wrapper for 'zpool scrub'.

cmd/vdev_id/vdev_id

@@ -102,7 +102,7 @@ Usage: vdev_id [-h]
        vdev_id <-d device> [-c config_file] [-p phys_per_port]
                [-g sas_direct|sas_switch|scsi] [-m]
 
-  -c    specify name of alernate config file [default=$CONFIG]
+  -c    specify name of an alternative config file [default=$CONFIG]
   -d    specify basename of device (i.e. sda)
   -e    Create enclose device symlinks only (/dev/by-enclosure)
   -g    Storage network topology [default="$TOPOLOGY"]

cmd/zdb/zdb.c

@@ -5391,7 +5391,7 @@ zdb_set_skip_mmp(char *target)
  * the name of the target pool.
  *
  * Note that the checkpointed state's pool name will be the name of
- * the original pool with the above suffix appened to it. In addition,
+ * the original pool with the above suffix appended to it. In addition,
  * if the target is not a pool name (e.g. a path to a dataset) then
  * the new_path parameter is populated with the updated path to
  * reflect the fact that we are looking into the checkpointed state.

cmd/zed/agents/fmd_api.c

@@ -25,7 +25,7 @@
  */
 
 /*
- * This file imlements the minimal FMD module API required to support the
+ * This file implements the minimal FMD module API required to support the
  * fault logic modules in ZED. This support includes module registration,
  * memory allocation, module property accessors, basic case management,
  * one-shot timers and SERD engines.

cmd/zed/agents/fmd_serd.c

@@ -281,7 +281,7 @@ fmd_serd_eng_empty(fmd_serd_eng_t *sgp)
 void
 fmd_serd_eng_reset(fmd_serd_eng_t *sgp)
 {
-	serd_log_msg("  SERD Engine: reseting %s", sgp->sg_name);
+	serd_log_msg("  SERD Engine: resetting %s", sgp->sg_name);
 
 	while (sgp->sg_count != 0)
 		fmd_serd_eng_discard(sgp, list_head(&sgp->sg_list));

cmd/zed/agents/zfs_mod.c

@@ -157,7 +157,7 @@ zfs_unavail_pool(zpool_handle_t *zhp, void *data)
  * 1. physical match with no fs, no partition
  *	tag it top, partition disk
  *
- * 2. physical match again, see partion and tag
+ * 2. physical match again, see partition and tag
  *
  */
 
@@ -674,7 +674,7 @@ zfs_deliver_add(nvlist_t *nvl, boolean_t is_lofi)
 	    devid, devpath ? devpath : "NULL", is_slice);
 
 	/*
-	 * Iterate over all vdevs looking for a match in the folllowing order:
+	 * Iterate over all vdevs looking for a match in the following order:
 	 * 1. ZPOOL_CONFIG_DEVID (identifies the unique disk)
 	 * 2. ZPOOL_CONFIG_PHYS_PATH (identifies disk physical location).
 	 *
@@ -892,7 +892,7 @@ zfs_enum_pools(void *arg)
  *
  * sent messages from zevents or udev monitor
  *
- * For now, each agent has it's own libzfs instance
+ * For now, each agent has its own libzfs instance
  */
 int
 zfs_slm_init()

cmd/zed/zed.d/statechange-led.sh

@@ -20,7 +20,7 @@
 #
 # Exit codes:
 #   0: enclosure led successfully set
-#   1: enclosure leds not not available
+#   1: enclosure leds not available
 #   2: enclosure leds administratively disabled
 #   3: The led sysfs path passed from ZFS does not exist
 #   4: $ZPOOL not set
@@ -68,7 +68,7 @@ check_and_set_led()
 	# timeout.
 	for _ in $(seq 1 5); do
 		# We want to check the current state first, since writing to the
-		# 'fault' entry always always causes a SES command, even if the
+		# 'fault' entry always causes a SES command, even if the
 		# current state is already what you want.
 		current=$(cat "${file}")
 

cmd/zfs/zfs_main.c

@@ -8061,7 +8061,7 @@ zfs_do_change_key(int argc, char **argv)
  * 4) zfs project [-p id] [-r] [-s] <file|directory ...>
  *    Set project ID and/or inherit flag on the file(s) or directories.
  *    -p: Set the project ID as the given id.
- *    -r: Set on subdirectorie recursively. If not specify "-p" option,
+ *    -r: Set on subdirectories recursively. If not specify "-p" option,
  *	  it will use top-level directory's project ID as the given id,
  *	  then set both project ID and inherit flag on all descendants
  *	  of the top-level directory.

cmd/zinject/translate.c

@@ -176,7 +176,7 @@ object_from_path(const char *dataset, uint64_t object, zinject_record_t *record)
 }
 
 /*
- * Intialize the range based on the type, level, and range given.
+ * Initialize the range based on the type, level, and range given.
  */
 static int
 initialize_range(err_type_t type, int level, char *range,
@@ -310,7 +310,7 @@ translate_record(err_type_t type, const char *object, const char *range,
 	ziprintf("raw object: %llu\n", record->zi_object);
 
 	/*
-	 * For the given object, intialize the range in bytes
+	 * For the given object, initialize the range in bytes
 	 */
 	if (initialize_range(type, level, (char *)range, record) != 0)
 		goto err;

cmd/zpool/zpool_vdev.c

@@ -438,7 +438,7 @@ check_disk(const char *path, blkid_cache cache, int force,
 	}
 
 	/*
-	 * Expected to fail for non-EFI labled disks.  Just check the device
+	 * Expected to fail for non-EFI labeled disks.  Just check the device
 	 * as given and do not attempt to detect and scan partitions.
 	 */
 	err = efi_alloc_and_read(fd, &vtoc);
@@ -1867,7 +1867,7 @@ make_root_vdev(zpool_handle_t *zhp, nvlist_t *props, int force, int check_rep,
 	}
 
 	/*
-	 * Validate each device to make sure that its not shared with another
+	 * Validate each device to make sure that it's not shared with another
 	 * subsystem.  We do this even if 'force' is set, because there are some
 	 * uses (such as a dedicated dump device) that even '-f' cannot
 	 * override.

cmd/zstreamdump/zstreamdump.c

@@ -197,7 +197,7 @@ print_block(char *buf, int length)
 }
 
 /*
- * Print an array of bytes to stdout as hexidecimal characters. str must
+ * Print an array of bytes to stdout as hexadecimal characters. str must
  * have buf_len * 2 + 1 bytes of space.
  */
 static void

cmd/ztest/ztest.c

@@ -74,7 +74,7 @@
  *
  * To turn this into an overnight stress test, use -T to specify run time.
  *
- * You can ask more more vdevs [-v], datasets [-d], or threads [-t]
+ * You can ask more vdevs [-v], datasets [-d], or threads [-t]
  * to increase the pool capacity, fanout, and overall stress level.
  *
  * Use the -k option to set the desired frequency of kills.

config/ax_code_coverage.m4

@@ -50,7 +50,7 @@
 #   CODE_COVERAGE_LIBS is preferred for clarity; CODE_COVERAGE_LDFLAGS is
 #   deprecated. They have the same value.
 #
-#   This code was derived from Makefile.decl in GLib, originally licenced
+#   This code was derived from Makefile.decl in GLib, originally licensed
 #   under LGPLv2.1+.
 #
 # LICENSE

config/kernel-dentry-operations.m4

@@ -69,7 +69,7 @@ AC_DEFUN([ZFS_AC_KERNEL_D_SET_D_OP],
 ])
 
 dnl #
-dnl # 2.6.38 API chage
+dnl # 2.6.38 API change
 dnl # Added sb->s_d_op default dentry_operations member
 dnl #
 AC_DEFUN([ZFS_AC_KERNEL_S_D_OP],