1 files changed, 80 insertions, 0 deletions
diff --git a/include/sys/vdev_indirect_births.h b/include/sys/vdev_indirect_births.h
new file mode 100644
index 000000000..987b14485
--- /dev/null
+++ b/include/sys/vdev_indirect_births.h
@@ -0,0 +1,80 @@
+/*
+ * CDDL HEADER START
+ *
+ * This file and its contents are supplied under the terms of the
+ * Common Development and Distribution License ("CDDL"), version 1.0.
+ * You may only use this file in accordance with the terms of version
+ * 1.0 of the CDDL.
+ *
+ * A full copy of the text of the CDDL should have accompanied this
+ * source.  A copy of the CDDL is also available via the Internet at
+ * http://www.illumos.org/license/CDDL.
+ *
+ * CDDL HEADER END
+ */
+
+/*
+ * Copyright (c) 2015 by Delphix. All rights reserved.
+ */
+
+#ifndef	_SYS_VDEV_INDIRECT_BIRTHS_H
+#define	_SYS_VDEV_INDIRECT_BIRTHS_H
+
+#include <sys/dmu.h>
+#include <sys/spa.h>
+
+#ifdef	__cplusplus
+extern "C" {
+#endif
+
+typedef struct vdev_indirect_birth_entry_phys {
+	uint64_t vibe_offset;
+	uint64_t vibe_phys_birth_txg;
+} vdev_indirect_birth_entry_phys_t;
+
+typedef struct vdev_indirect_birth_phys {
+	uint64_t	vib_count; /* count of v_i_b_entry_phys_t's */
+} vdev_indirect_birth_phys_t;
+
+typedef struct vdev_indirect_births {
+	uint64_t	vib_object;
+
+	/*
+	 * Each entry indicates that everything up to but not including
+	 * vibe_offset was copied in vibe_phys_birth_txg. Entries are sorted
+	 * by increasing phys_birth, and also by increasing offset. See
+	 * vdev_indirect_births_physbirth for usage.
+	 */
+	vdev_indirect_birth_entry_phys_t *vib_entries;
+
+	objset_t	*vib_objset;
+
+	dmu_buf_t	*vib_dbuf;
+	vdev_indirect_birth_phys_t	*vib_phys;
+} vdev_indirect_births_t;
+
+extern vdev_indirect_births_t *vdev_indirect_births_open(objset_t *os,
+    uint64_t object);
+extern void vdev_indirect_births_close(vdev_indirect_births_t *vib);
+extern boolean_t vdev_indirect_births_is_open(vdev_indirect_births_t *vib);
+extern uint64_t vdev_indirect_births_alloc(objset_t *os, dmu_tx_t *tx);
+extern void vdev_indirect_births_free(objset_t *os, uint64_t object,
+    dmu_tx_t *tx);
+
+extern uint64_t vdev_indirect_births_count(vdev_indirect_births_t *vib);
+extern uint64_t vdev_indirect_births_object(vdev_indirect_births_t *vib);
+
+extern void vdev_indirect_births_add_entry(vdev_indirect_births_t *vib,
+    uint64_t offset, uint64_t txg, dmu_tx_t *tx);
+
+extern uint64_t vdev_indirect_births_physbirth(vdev_indirect_births_t *vib,
+    uint64_t offset, uint64_t asize);
+
+extern uint64_t vdev_indirect_births_last_entry_txg(
+    vdev_indirect_births_t *vib);
+
+#ifdef	__cplusplus
+}
+#endif
+
+#endif	/* _SYS_VDEV_INDIRECT_BIRTHS_H */