1 files changed, 73 insertions, 0 deletions
diff --git a/sys/cddl/contrib/opensolaris/uts/common/fs/zfs/sys/zfeature.h b/sys/cddl/contrib/opensolaris/uts/common/fs/zfs/sys/zfeature.h
new file mode 100644
index 0000000..5abde14
--- /dev/null
+++ b/sys/cddl/contrib/opensolaris/uts/common/fs/zfs/sys/zfeature.h
@@ -0,0 +1,73 @@
+/*
+ * 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) 2013 by Delphix. All rights reserved.
+ */
+
+#ifndef _SYS_ZFEATURE_H
+#define	_SYS_ZFEATURE_H
+
+#include <sys/nvpair.h>
+#include <sys/txg.h>
+#include "zfeature_common.h"
+
+#ifdef	__cplusplus
+extern "C" {
+#endif
+
+#define	VALID_FEATURE_FID(fid)	((fid) >= 0 && (fid) < SPA_FEATURES)
+#define	VALID_FEATURE_OR_NONE(fid)	((fid) == SPA_FEATURE_NONE ||	\
+    VALID_FEATURE_FID(fid))
+
+struct spa;
+struct dmu_tx;
+struct objset;
+
+extern void spa_feature_create_zap_objects(struct spa *, struct dmu_tx *);
+extern void spa_feature_enable(struct spa *, spa_feature_t,
+    struct dmu_tx *);
+extern void spa_feature_incr(struct spa *, spa_feature_t, struct dmu_tx *);
+extern void spa_feature_decr(struct spa *, spa_feature_t, struct dmu_tx *);
+extern boolean_t spa_feature_is_enabled(struct spa *, spa_feature_t);
+extern boolean_t spa_feature_is_active(struct spa *, spa_feature_t);
+extern boolean_t spa_feature_enabled_txg(spa_t *spa, spa_feature_t fid,
+    uint64_t *txg);
+extern uint64_t spa_feature_refcount(spa_t *, spa_feature_t, uint64_t);
+extern boolean_t spa_features_check(spa_t *, boolean_t, nvlist_t *, nvlist_t *);
+
+/*
+ * These functions are only exported for zhack and zdb; normal callers should
+ * use the above interfaces.
+ */
+extern int feature_get_refcount(struct spa *, zfeature_info_t *, uint64_t *);
+extern int feature_get_refcount_from_disk(spa_t *spa, zfeature_info_t *feature,
+    uint64_t *res);
+extern void feature_enable_sync(struct spa *, zfeature_info_t *,
+    struct dmu_tx *);
+extern void feature_sync(struct spa *, zfeature_info_t *, uint64_t,
+    struct dmu_tx *);
+
+#ifdef	__cplusplus
+}
+#endif
+
+#endif /* _SYS_ZFEATURE_H */