1 files changed, 71 insertions, 0 deletions
diff --git a/module/zfs/include/sys/metaslab.h b/module/zfs/include/sys/metaslab.h
new file mode 100644
index 000000000..1c9d89e8f
--- /dev/null
+++ b/module/zfs/include/sys/metaslab.h
@@ -0,0 +1,71 @@
+/*
+ * 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 2008 Sun Microsystems, Inc.  All rights reserved.
+ * Use is subject to license terms.
+ */
+
+#ifndef _SYS_METASLAB_H
+#define	_SYS_METASLAB_H
+
+#include <sys/spa.h>
+#include <sys/space_map.h>
+#include <sys/txg.h>
+#include <sys/zio.h>
+#include <sys/avl.h>
+
+#ifdef	__cplusplus
+extern "C" {
+#endif
+
+typedef struct metaslab_class metaslab_class_t;
+typedef struct metaslab_group metaslab_group_t;
+
+extern metaslab_t *metaslab_init(metaslab_group_t *mg, space_map_obj_t *smo,
+    uint64_t start, uint64_t size, uint64_t txg);
+extern void metaslab_fini(metaslab_t *msp);
+extern void metaslab_sync(metaslab_t *msp, uint64_t txg);
+extern void metaslab_sync_done(metaslab_t *msp, uint64_t txg);
+
+#define	METASLAB_HINTBP_FAVOR	0x0
+#define	METASLAB_HINTBP_AVOID	0x1
+#define	METASLAB_GANG_HEADER	0x2
+
+extern int metaslab_alloc(spa_t *spa, metaslab_class_t *mc, uint64_t psize,
+    blkptr_t *bp, int ncopies, uint64_t txg, blkptr_t *hintbp, int flags);
+extern void metaslab_free(spa_t *spa, const blkptr_t *bp, uint64_t txg,
+    boolean_t now);
+extern int metaslab_claim(spa_t *spa, const blkptr_t *bp, uint64_t txg);
+
+extern metaslab_class_t *metaslab_class_create(void);
+extern void metaslab_class_destroy(metaslab_class_t *mc);
+extern void metaslab_class_add(metaslab_class_t *mc, metaslab_group_t *mg);
+extern void metaslab_class_remove(metaslab_class_t *mc, metaslab_group_t *mg);
+
+extern metaslab_group_t *metaslab_group_create(metaslab_class_t *mc,
+    vdev_t *vd);
+extern void metaslab_group_destroy(metaslab_group_t *mg);
+
+#ifdef	__cplusplus
+}
+#endif
+
+#endif	/* _SYS_METASLAB_H */