Rebase master to b108

module/zfs/include/sys/arc.h

@@ -19,7 +19,7 @@
  * CDDL HEADER END
  */
 /*
- * Copyright 2008 Sun Microsystems, Inc.  All rights reserved.
+ * Copyright 2009 Sun Microsystems, Inc.  All rights reserved.
  * Use is subject to license terms.
  */
 
@@ -68,8 +68,19 @@ typedef enum arc_buf_contents {
 #define	ARC_CACHED	(1 << 4)	/* I/O was already in cache */
 #define	ARC_L2CACHE	(1 << 5)	/* cache in L2ARC */
 
-void arc_space_consume(uint64_t space);
-void arc_space_return(uint64_t space);
+/*
+ * The following breakdows of arc_size exist for kstat only.
+ */
+typedef enum arc_space_type {
+	ARC_SPACE_DATA,
+	ARC_SPACE_HDRS,
+	ARC_SPACE_L2HDRS,
+	ARC_SPACE_OTHER,
+	ARC_SPACE_NUMTYPES
+} arc_space_type_t;
+
+void arc_space_consume(uint64_t space, arc_space_type_t type);
+void arc_space_return(uint64_t space, arc_space_type_t type);
 void *arc_data_buf_alloc(uint64_t space);
 void arc_data_buf_free(void *buf, uint64_t space);
 arc_buf_t *arc_buf_alloc(spa_t *spa, int size, void *tag,

module/zfs/include/sys/dmu_objset.h

@@ -26,8 +26,6 @@
 #ifndef	_SYS_DMU_OBJSET_H
 #define	_SYS_DMU_OBJSET_H
 
-#pragma ident	"%Z%%M%	%I%	%E% SMI"
-
 #include <sys/spa.h>
 #include <sys/arc.h>
 #include <sys/txg.h>
@@ -118,6 +116,7 @@ int dmu_objset_find(char *name, int func(char *, void *), void *arg,
     int flags);
 int dmu_objset_find_spa(spa_t *spa, const char *name,
     int func(spa_t *, uint64_t, const char *, void *), void *arg, int flags);
+int dmu_objset_prefetch(char *name, void *arg);
 void dmu_objset_byteswap(void *buf, size_t size);
 int dmu_objset_evict_dbufs(objset_t *os);
 

module/zfs/include/sys/dnode.h

@@ -19,7 +19,7 @@
  * CDDL HEADER END
  */
 /*
- * Copyright 2008 Sun Microsystems, Inc.  All rights reserved.
+ * Copyright 2009 Sun Microsystems, Inc.  All rights reserved.
  * Use is subject to license terms.
  */
 
@@ -160,6 +160,7 @@ typedef struct dnode {
 	uint16_t dn_datablkszsec;	/* in 512b sectors */
 	uint32_t dn_datablksz;		/* in bytes */
 	uint64_t dn_maxblkid;
+	uint8_t dn_next_nblkptr[TXG_SIZE];
 	uint8_t dn_next_nlevels[TXG_SIZE];
 	uint8_t dn_next_indblkshift[TXG_SIZE];
 	uint16_t dn_next_bonuslen[TXG_SIZE];

module/zfs/include/sys/spa.h

@@ -19,7 +19,7 @@
  * CDDL HEADER END
  */
 /*
- * Copyright 2008 Sun Microsystems, Inc.  All rights reserved.
+ * Copyright 2009 Sun Microsystems, Inc.  All rights reserved.
  * Use is subject to license terms.
  */
 
@@ -532,6 +532,7 @@ extern void spa_boot_init();
 extern int spa_prop_set(spa_t *spa, nvlist_t *nvp);
 extern int spa_prop_get(spa_t *spa, nvlist_t **nvp);
 extern void spa_prop_clear_bootfs(spa_t *spa, uint64_t obj, dmu_tx_t *tx);
+extern void spa_configfile_set(spa_t *, nvlist_t *, boolean_t);
 
 /* asynchronous event notification */
 extern void spa_event_notify(spa_t *spa, vdev_t *vdev, const char *name);

module/zfs/include/sys/zfs_znode.h

@@ -19,7 +19,7 @@
  * CDDL HEADER END
  */
 /*
- * Copyright 2008 Sun Microsystems, Inc.  All rights reserved.
+ * Copyright 2009 Sun Microsystems, Inc.  All rights reserved.
  * Use is subject to license terms.
  */
 
@@ -182,7 +182,6 @@ typedef struct znode {
 	vnode_t		*z_vnode;
 	uint64_t	z_id;		/* object ID for this znode */
 	kmutex_t	z_lock;		/* znode modification lock */
-	krwlock_t	z_map_lock;	/* page map lock */
 	krwlock_t	z_parent_lock;	/* parent lock for directories */
 	krwlock_t	z_name_lock;	/* "master" lock for dirent locks */
 	zfs_dirlock_t	*z_dirlocks;	/* directory entry lock list */

module/zfs/include/sys/zio.h

@@ -20,7 +20,7 @@
  */
 
 /*
- * Copyright 2008 Sun Microsystems, Inc.  All rights reserved.
+ * Copyright 2009 Sun Microsystems, Inc.  All rights reserved.
  * Use is subject to license terms.
  */
 
@@ -265,6 +265,13 @@ typedef int zio_pipe_stage_t(zio_t *zio);
 #define	ZIO_REEXECUTE_NOW	0x01
 #define	ZIO_REEXECUTE_SUSPEND	0x02
 
+typedef struct zio_link {
+	zio_t		*zl_parent;
+	zio_t		*zl_child;
+	list_node_t	zl_parent_node;
+	list_node_t	zl_child_node;
+} zio_link_t;
+
 struct zio {
 	/* Core information about this I/O */
 	zbookmark_t	io_bookmark;
@@ -275,14 +282,14 @@ struct zio {
 	uint8_t		io_priority;
 	uint8_t		io_reexecute;
 	uint8_t		io_async_root;
+	uint8_t		io_state[ZIO_WAIT_TYPES];
 	uint64_t	io_txg;
 	spa_t		*io_spa;
 	blkptr_t	*io_bp;
 	blkptr_t	io_bp_copy;
-	zio_t		*io_parent;
-	zio_t		*io_child;
-	zio_t		*io_sibling_prev;
-	zio_t		*io_sibling_next;
+	list_t		io_parent_list;
+	list_t		io_child_list;
+	zio_link_t	*io_walk_link;
 	zio_t		*io_logical;
 	zio_transform_t *io_transform_stack;
 
@@ -305,8 +312,6 @@ struct zio {
 	avl_node_t	io_offset_node;
 	avl_node_t	io_deadline_node;
 	avl_tree_t	*io_vdev_tree;
-	zio_t		*io_delegate_list;
-	zio_t		*io_delegate_next;
 
 	/* Internal pipeline state */
 	int		io_flags;
@@ -329,7 +334,7 @@ struct zio {
 	uint64_t	io_ena;
 };
 
-extern zio_t *zio_null(zio_t *pio, spa_t *spa,
+extern zio_t *zio_null(zio_t *pio, spa_t *spa, vdev_t *vd,
     zio_done_func_t *done, void *private, int flags);
 
 extern zio_t *zio_root(spa_t *spa,
@@ -379,6 +384,11 @@ extern void zio_nowait(zio_t *zio);
 extern void zio_execute(zio_t *zio);
 extern void zio_interrupt(zio_t *zio);
 
+extern zio_t *zio_walk_parents(zio_t *cio);
+extern zio_t *zio_walk_children(zio_t *pio);
+extern zio_t *zio_unique_parent(zio_t *cio);
+extern void zio_add_child(zio_t *pio, zio_t *cio);
+
 extern void *zio_buf_alloc(size_t size);
 extern void zio_buf_free(void *buf, size_t size);
 extern void *zio_data_buf_alloc(size_t size);