Please welcome ZFS - The last word in file systems.

ZFS file system was ported from OpenSolaris operating system. The code in under
CDDL license.

I'd like to thank all SUN developers that created this great piece of software.

Supported by:	Wheel LTD (http://www.wheel.pl/)
Supported by:	The FreeBSD Foundation (http://www.freebsdfoundation.org/)
Supported by:	Sentex (http://www.sentex.net/)

1 files changed, 89 insertions, 0 deletions

diff --git a/sys/cddl/contrib/opensolaris/uts/common/fs/zfs/sys/bplist.h b/sys/cddl/contrib/opensolaris/uts/common/fs/zfs/sys/bplist.h
new file mode 100644
index 0000000..b4c8376
--- /dev/null
+++ b/sys/cddl/contrib/opensolaris/uts/common/fs/zfs/sys/bplist.h
@@ -0,0 +1,89 @@
+/*
+ * 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 2006 Sun Microsystems, Inc.  All rights reserved.
+ * Use is subject to license terms.
+ */
+
+#ifndef	_SYS_BPLIST_H
+#define	_SYS_BPLIST_H
+
+#pragma ident	"%Z%%M%	%I%	%E% SMI"
+
+#include <sys/dmu.h>
+#include <sys/spa.h>
+#include <sys/txg.h>
+#include <sys/zfs_context.h>
+
+#ifdef	__cplusplus
+extern "C" {
+#endif
+
+typedef struct bplist_phys {
+	/*
+	 * This is the bonus buffer for the dead lists.  The object's
+	 * contents is an array of bpl_entries blkptr_t's, representing
+	 * a total of bpl_bytes physical space.
+	 */
+	uint64_t	bpl_entries;
+	uint64_t	bpl_bytes;
+	uint64_t	bpl_comp;
+	uint64_t	bpl_uncomp;
+} bplist_phys_t;
+
+#define	BPLIST_SIZE_V0	(2 * sizeof (uint64_t))
+
+typedef struct bplist_q {
+	blkptr_t	bpq_blk;
+	void		*bpq_next;
+} bplist_q_t;
+
+typedef struct bplist {
+	kmutex_t	bpl_lock;
+	objset_t	*bpl_mos;
+	uint64_t	bpl_object;
+	uint8_t		bpl_blockshift;
+	uint8_t		bpl_bpshift;
+	uint8_t		bpl_havecomp;
+	bplist_q_t	*bpl_queue;
+	bplist_phys_t	*bpl_phys;
+	dmu_buf_t	*bpl_dbuf;
+	dmu_buf_t	*bpl_cached_dbuf;
+} bplist_t;
+
+extern uint64_t bplist_create(objset_t *mos, int blocksize, dmu_tx_t *tx);
+extern void bplist_destroy(objset_t *mos, uint64_t object, dmu_tx_t *tx);
+extern int bplist_open(bplist_t *bpl, objset_t *mos, uint64_t object);
+extern void bplist_close(bplist_t *bpl);
+extern boolean_t bplist_empty(bplist_t *bpl);
+extern int bplist_iterate(bplist_t *bpl, uint64_t *itorp, blkptr_t *bp);
+extern int bplist_enqueue(bplist_t *bpl, blkptr_t *bp, dmu_tx_t *tx);
+extern void bplist_enqueue_deferred(bplist_t *bpl, blkptr_t *bp);
+extern void bplist_sync(bplist_t *bpl, dmu_tx_t *tx);
+extern void bplist_vacate(bplist_t *bpl, dmu_tx_t *tx);
+extern int bplist_space(bplist_t *bpl,
+    uint64_t *usedp, uint64_t *compp, uint64_t *uncompp);
+
+#ifdef	__cplusplus
+}
+#endif
+
+#endif /* _SYS_BPLIST_H */