X-Git-Url: https://git.camperquake.de/gitweb.cgi?a=blobdiff_plain;ds=sidebyside;f=module%2Fzfs%2Finclude%2Fsys%2Fvdev_impl.h;h=161bd21f05a6eea1e7fd8ff04d307ab1692fac06;hb=572e285762521df27fe5b026f409ba1a21abb7ac;hp=65234934188b1c4fd7c4510fd63fa72f11fb45a2;hpb=fb5f0bc83330c8a0236c4d34a23723ac1974971a;p=zfs.git diff --git a/module/zfs/include/sys/vdev_impl.h b/module/zfs/include/sys/vdev_impl.h index 6523493..161bd21 100644 --- a/module/zfs/include/sys/vdev_impl.h +++ b/module/zfs/include/sys/vdev_impl.h @@ -19,8 +19,7 @@ * CDDL HEADER END */ /* - * Copyright 2008 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; @@ -112,19 +115,28 @@ 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 */ uint64_t vdev_state; /* see VDEV_STATE_* #defines */ uint64_t vdev_prevstate; /* used when reopening a 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 */ uint64_t vdev_children; /* number of children */ 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. @@ -139,10 +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. @@ -155,16 +169,20 @@ struct vdev { uint64_t vdev_faulted; /* persistent faulted state */ uint64_t vdev_degraded; /* persistent degraded state */ uint64_t vdev_removed; /* persistent removed state */ + uint64_t vdev_resilvering; /* persistent resilvering state */ uint64_t vdev_nparity; /* number of parity devices for raidz */ char *vdev_path; /* vdev path (if any) */ char *vdev_devid; /* vdev devid (if any) */ char *vdev_physpath; /* vdev device path (if any) */ + char *vdev_fru; /* physical FRU location */ uint64_t vdev_not_present; /* not present during import */ uint64_t vdev_unspare; /* unspare when resilvering done */ hrtime_t vdev_last_try; /* last reopen time */ 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 */ @@ -175,6 +193,7 @@ 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 @@ -188,8 +207,11 @@ struct vdev { kmutex_t vdev_probe_lock; /* protects vdev_probe_zio */ }; -#define VDEV_SKIP_SIZE (8 << 10) -#define VDEV_BOOT_HEADER_SIZE (8 << 10) +#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 #define VDEV_PHYS_SIZE (112 << 10) #define VDEV_UBERBLOCK_RING (128 << 10) @@ -201,26 +223,14 @@ struct vdev { offsetof(vdev_label_t, vl_uberblock[(n) << VDEV_UBERBLOCK_SHIFT(vd)]) #define VDEV_UBERBLOCK_SIZE(vd) (1ULL << VDEV_UBERBLOCK_SHIFT(vd)) -/* ZFS boot block */ -#define VDEV_BOOT_MAGIC 0x2f5b007b10cULL -#define VDEV_BOOT_VERSION 1 /* version number */ - -typedef struct vdev_boot_header { - uint64_t vb_magic; /* VDEV_BOOT_MAGIC */ - uint64_t vb_version; /* VDEV_BOOT_VERSION */ - uint64_t vb_offset; /* start offset (bytes) */ - uint64_t vb_size; /* size (bytes) */ - char vb_pad[VDEV_BOOT_HEADER_SIZE - 4 * sizeof (uint64_t)]; -} vdev_boot_header_t; - 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 { - char vl_pad[VDEV_SKIP_SIZE]; /* 8K */ - vdev_boot_header_t vl_boot_header; /* 8K */ + char vl_pad1[VDEV_PAD_SIZE]; /* 8K */ + char vl_pad2[VDEV_PAD_SIZE]; /* 8K */ vdev_phys_t vl_vdev_phys; /* 112K */ char vl_uberblock[VDEV_UBERBLOCK_RING]; /* 128K */ } vdev_label_t; /* 256K total */ @@ -249,10 +259,14 @@ typedef struct vdev_label { #define VDEV_ALLOC_ADD 1 #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); @@ -269,6 +283,8 @@ extern void vdev_remove_parent(vdev_t *cvd); /* * vdev sync load and sync */ +extern void vdev_load_log_state(vdev_t *nvd, vdev_t *ovd); +extern boolean_t vdev_log_state_valid(vdev_t *vd); 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); @@ -284,13 +300,15 @@ 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; /* * Common size functions */ extern uint64_t vdev_default_asize(vdev_t *vd, uint64_t psize); -extern uint64_t vdev_get_rsize(vdev_t *vd); +extern uint64_t vdev_get_min_asize(vdev_t *vd); +extern void vdev_set_min_asize(vdev_t *vd); /* * zdb uses this tunable, so it must be declared here to make lint happy.