Update core ZFS code from build 121 to build 141.

[zfs.git] / module / zfs / include / sys / vdev_impl.h

diff --git a/module/zfs/include/sys/vdev_impl.h b/module/zfs/include/sys/vdev_impl.h
index 2378043..2b886bc 100644 (file)
--- a/module/zfs/include/sys/vdev_impl.h
+++ b/module/zfs/include/sys/vdev_impl.h
@@ -19,8 +19,7 @@
  * CDDL HEADER END
  */
 /*
- * Copyright 2009 Sun Microsystems, Inc.  All rights reserved.
- * Use is subject to license terms.
+ * Copyright (c) 2005, 2010, Oracle and/or its affiliates. All rights reserved.
  */
 
 #ifndef _SYS_VDEV_IMPL_H
@@ -62,6 +61,8 @@ typedef uint64_t vdev_asize_func_t(vdev_t *vd, uint64_t psize);
 typedef int    vdev_io_start_func_t(zio_t *zio);
 typedef void   vdev_io_done_func_t(zio_t *zio);
 typedef void   vdev_state_change_func_t(vdev_t *vd, int, int);
+typedef void   vdev_hold_func_t(vdev_t *vd);
+typedef void   vdev_rele_func_t(vdev_t *vd);
 
 typedef struct vdev_ops {
        vdev_open_func_t                *vdev_op_open;
@@ -70,6 +71,8 @@ typedef struct vdev_ops {
        vdev_io_start_func_t            *vdev_op_io_start;
        vdev_io_done_func_t             *vdev_op_io_done;
        vdev_state_change_func_t        *vdev_op_state_change;
+       vdev_hold_func_t                *vdev_op_hold;
+       vdev_rele_func_t                *vdev_op_rele;
        char                            vdev_op_type[16];
        boolean_t                       vdev_op_leaf;
 } vdev_ops_t;
@@ -112,6 +115,7 @@ struct vdev {
        uint64_t        vdev_id;        /* child number in vdev parent  */
        uint64_t        vdev_guid;      /* unique ID for this vdev      */
        uint64_t        vdev_guid_sum;  /* self guid + all child guids  */
+       uint64_t        vdev_orig_guid; /* orig. guid prior to remove   */
        uint64_t        vdev_asize;     /* allocatable device capacity  */
        uint64_t        vdev_min_asize; /* min acceptable asize         */
        uint64_t        vdev_ashift;    /* block alignment shift        */
@@ -120,6 +124,8 @@ struct vdev {
        vdev_ops_t      *vdev_ops;      /* vdev operations              */
        spa_t           *vdev_spa;      /* spa for this vdev            */
        void            *vdev_tsd;      /* type-specific data           */
+       vnode_t         *vdev_name_vp;  /* vnode for pathname           */
+       vnode_t         *vdev_devid_vp; /* vnode for devid              */
        vdev_t          *vdev_top;      /* top-level vdev               */
        vdev_t          *vdev_parent;   /* parent vdev                  */
        vdev_t          **vdev_child;   /* array of children            */
@@ -127,8 +133,10 @@ struct vdev {
        space_map_t     vdev_dtl[DTL_TYPES]; /* in-core dirty time logs */
        vdev_stat_t     vdev_stat;      /* virtual device statistics    */
        boolean_t       vdev_expanding; /* expand the vdev?             */
+       boolean_t       vdev_reopening; /* reopen in progress?          */
        int             vdev_open_error; /* error on last open          */
        kthread_t       *vdev_open_thread; /* thread opening children   */
+       uint64_t        vdev_crtxg;     /* txg when top-level was added */
 
        /*
         * Top-level vdev state.
@@ -143,10 +151,12 @@ struct vdev {
        txg_node_t      vdev_txg_node;  /* per-txg dirty vdev linkage   */
        boolean_t       vdev_remove_wanted; /* async remove wanted?     */
        boolean_t       vdev_probe_wanted; /* async probe wanted?       */
+       uint64_t        vdev_removing;  /* device is being removed?     */
        list_node_t     vdev_config_dirty_node; /* config dirty list    */
        list_node_t     vdev_state_dirty_node; /* state dirty list      */
        uint64_t        vdev_deflate_ratio; /* deflation ratio (x512)   */
        uint64_t        vdev_islog;     /* is an intent log device      */
+       uint64_t        vdev_ishole;    /* is a hole in the namespace   */
 
        /*
         * Leaf vdev state.
@@ -170,6 +180,8 @@ struct vdev {
        boolean_t       vdev_nowritecache; /* true if flushwritecache failed */
        boolean_t       vdev_checkremove; /* temporary online test      */
        boolean_t       vdev_forcefault; /* force online fault          */
+       boolean_t       vdev_splitting; /* split or repair in progress  */
+       boolean_t       vdev_delayed_close; /* delayed device close?    */
        uint8_t         vdev_tmpoffline; /* device taken offline temporarily? */
        uint8_t         vdev_detached;  /* device detached?             */
        uint8_t         vdev_cant_read; /* vdev is failing all reads    */
@@ -180,6 +192,7 @@ struct vdev {
        vdev_cache_t    vdev_cache;     /* physical block cache         */
        spa_aux_vdev_t  *vdev_aux;      /* for l2cache vdevs            */
        zio_t           *vdev_probe_zio; /* root of current probe       */
+       vdev_aux_t      vdev_label_aux; /* on-disk aux state            */
 
        /*
         * For DTrace to work in userland (libzpool) context, these fields must
@@ -193,6 +206,8 @@ struct vdev {
        kmutex_t        vdev_probe_lock; /* protects vdev_probe_zio     */
 };
 
+#define        VDEV_RAIDZ_MAXPARITY    3
+
 #define        VDEV_PAD_SIZE           (8 << 10)
 /* 2 padding areas (vl_pad1 and vl_pad2) to skip */
 #define        VDEV_SKIP_SIZE          VDEV_PAD_SIZE * 2
@@ -208,8 +223,8 @@ struct vdev {
 #define        VDEV_UBERBLOCK_SIZE(vd)         (1ULL << VDEV_UBERBLOCK_SHIFT(vd))
 
 typedef struct vdev_phys {
-       char            vp_nvlist[VDEV_PHYS_SIZE - sizeof (zio_block_tail_t)];
-       zio_block_tail_t vp_zbt;
+       char            vp_nvlist[VDEV_PHYS_SIZE - sizeof (zio_eck_t)];
+       zio_eck_t       vp_zbt;
 } vdev_phys_t;
 
 typedef struct vdev_label {
@@ -244,10 +259,13 @@ typedef struct vdev_label {
 #define        VDEV_ALLOC_SPARE        2
 #define        VDEV_ALLOC_L2CACHE      3
 #define        VDEV_ALLOC_ROOTPOOL     4
+#define        VDEV_ALLOC_SPLIT        5
 
 /*
  * Allocate or free a vdev
  */
+extern vdev_t *vdev_alloc_common(spa_t *spa, uint_t id, uint64_t guid,
+    vdev_ops_t *ops);
 extern int vdev_alloc(spa_t *spa, vdev_t **vdp, nvlist_t *config,
     vdev_t *parent, uint_t id, int alloctype);
 extern void vdev_free(vdev_t *vd);
@@ -264,7 +282,7 @@ extern void vdev_remove_parent(vdev_t *cvd);
 /*
  * vdev sync load and sync
  */
-extern void vdev_load_log_state(vdev_t *vd, nvlist_t *nv);
+extern void vdev_load_log_state(vdev_t *nvd, vdev_t *ovd);
 extern void vdev_load(vdev_t *vd);
 extern void vdev_sync(vdev_t *vd, uint64_t txg);
 extern void vdev_sync_done(vdev_t *vd, uint64_t txg);
@@ -280,6 +298,7 @@ extern vdev_ops_t vdev_raidz_ops;
 extern vdev_ops_t vdev_disk_ops;
 extern vdev_ops_t vdev_file_ops;
 extern vdev_ops_t vdev_missing_ops;
+extern vdev_ops_t vdev_hole_ops;
 extern vdev_ops_t vdev_spare_ops;
 
 /*