Add userobj, groupobj and project quotas

Change vnode ioctl to fcntl

XNU will deny ioctl to any vnode that is not BLK or CHR. It is
expected that fcntl() is used in this case. Change "zfs project" to
use fcntl to query projid.

Potentially there is no way to set project, without an equivalent
tool to Linux "chattr". But pool import should at least work, as
well as quota restrictions.

Author: lundman

cmd/zdb/zdb.c

@@ -2209,11 +2209,13 @@ dump_object(objset_t *os, uint64_t object, int verbosity, int *print_header,
 	}
 
 	if (verbosity >= 4) {
-		(void) printf("\tdnode flags: %s%s%s\n",
+		(void) printf("\tdnode flags: %s%s%s%s\n",
 		    (dn->dn_phys->dn_flags & DNODE_FLAG_USED_BYTES) ?
 		    "USED_BYTES " : "",
 		    (dn->dn_phys->dn_flags & DNODE_FLAG_USERUSED_ACCOUNTED) ?
 		    "USERUSED_ACCOUNTED " : "",
+		    (dn->dn_phys->dn_flags & DNODE_FLAG_USEROBJUSED_ACCOUNTED) ?
+		    "USEROBJUSED_ACCOUNTED " : "",
 		    (dn->dn_phys->dn_flags & DNODE_FLAG_SPILL_BLKPTR) ?
 		    "SPILL_BLKPTR" : "");
 		(void) printf("\tdnode maxblkid: %llu\n",
@@ -3010,16 +3012,17 @@ dump_one_dir(const char *dsname, void *arg)
 {
 	int error;
 	objset_t *os;
+	spa_feature_t f;
 
 	error = open_objset(dsname, DMU_OST_ANY, FTAG, &os);
 	if (error != 0)
 		return (0);
 
-	for (spa_feature_t f = 0; f < SPA_FEATURES; f++) {
-		if (!dmu_objset_ds(os)->ds_feature_inuse[f])
+	for (f = 0; f < SPA_FEATURES; f++) {
+		if (!dsl_dataset_feature_is_active(dmu_objset_ds(os), f))
 			continue;
 		ASSERT(spa_feature_table[f].fi_flags &
-			   ZFEATURE_FLAG_PER_DATASET);
+		    ZFEATURE_FLAG_PER_DATASET);
 		dataset_feature_count[f]++;
 	}
 

cmd/zfs/Makefile.am

@@ -13,7 +13,9 @@ zfs_SOURCES = \
 	zfs_iter.h \
 	zfs_main.c \
 	zfs_osx.m  \
-	zfs_util.h
+	zfs_util.h \
+	zfs_project.c \
+	zfs_projectutil.h
 
 zfs_LDADD = \
 	$(top_builddir)/lib/libnvpair/libnvpair.la \