Whamcloud - gitweb
LU-2158 lvfs: Remove functions from lvfs_linux.c
[fs/lustre-release.git] / lustre / include / obd.h
index da354e2..9b51c8f 100644 (file)
@@ -27,7 +27,7 @@
  * Copyright (c) 2007, 2010, Oracle and/or its affiliates. All rights reserved.
  * Use is subject to license terms.
  *
- * Copyright (c) 2011, 2012, Whamcloud, Inc.
+ * Copyright (c) 2011, 2012, Intel Corporation.
  */
 /*
  * This file is part of Lustre, http://www.lustre.org/
@@ -63,7 +63,6 @@
 #include <lu_ref.h>
 #include <lustre_lib.h>
 #include <lustre_export.h>
-#include <lustre_quota.h>
 #include <lustre_fld.h>
 #include <lustre_capa.h>
 
 
 #define MAX_OBD_DEVICES 8192
 
-/* this is really local to the OSC */
-struct loi_oap_pages {
-        cfs_list_t              lop_pending;
-        cfs_list_t              lop_urgent;
-        cfs_list_t              lop_pending_group;
-        int                     lop_num_pending;
-};
-
 struct osc_async_rc {
         int     ar_rc;
         int     ar_force_sync;
@@ -91,14 +82,6 @@ struct lov_oinfo {                 /* per-stripe data structure */
         int loi_ost_idx;           /* OST stripe index in lov_tgt_desc->tgts */
         int loi_ost_gen;           /* generation of this loi_ost_idx */
 
-        /* used by the osc to keep track of what objects to build into rpcs */
-        struct loi_oap_pages loi_read_lop;
-        struct loi_oap_pages loi_write_lop;
-        cfs_list_t loi_ready_item;
-        cfs_list_t loi_hp_ready_item;
-        cfs_list_t loi_write_item;
-        cfs_list_t loi_read_item;
-
         unsigned long loi_kms_valid:1;
         __u64 loi_kms;             /* known minimum size */
         struct ost_lvb loi_lvb;
@@ -115,20 +98,11 @@ static inline void loi_kms_set(struct lov_oinfo *oinfo, __u64 kms)
 
 static inline void loi_init(struct lov_oinfo *loi)
 {
-        CFS_INIT_LIST_HEAD(&loi->loi_read_lop.lop_pending);
-        CFS_INIT_LIST_HEAD(&loi->loi_read_lop.lop_urgent);
-        CFS_INIT_LIST_HEAD(&loi->loi_read_lop.lop_pending_group);
-        CFS_INIT_LIST_HEAD(&loi->loi_write_lop.lop_pending);
-        CFS_INIT_LIST_HEAD(&loi->loi_write_lop.lop_urgent);
-        CFS_INIT_LIST_HEAD(&loi->loi_write_lop.lop_pending_group);
-        CFS_INIT_LIST_HEAD(&loi->loi_ready_item);
-        CFS_INIT_LIST_HEAD(&loi->loi_hp_ready_item);
-        CFS_INIT_LIST_HEAD(&loi->loi_write_item);
-        CFS_INIT_LIST_HEAD(&loi->loi_read_item);
 }
 
 struct lov_stripe_md {
-        cfs_spinlock_t   lsm_lock;
+       cfs_atomic_t     lsm_refc;
+       spinlock_t      lsm_lock;
         pid_t            lsm_lock_owner; /* debugging */
 
         /* maximum possible file size, might change as OSTs status changes,
@@ -176,7 +150,7 @@ struct obd_info {
            - while stats, the flags used for control delay/resend.
            - while setattr, the flags used for distinguish punch operation
          */
-        int                     oi_flags;
+       __u64                   oi_flags;
         /* Lock handle specific for every OSC lock. */
         struct lustre_handle   *oi_lockh;
         /* lsm data specific for every OSC. */
@@ -270,7 +244,7 @@ struct obd_type {
         char *typ_name;
         int  typ_refcnt;
         struct lu_device_type *typ_lu;
-        cfs_spinlock_t obd_type_lock;
+       spinlock_t obd_type_lock;
 };
 
 struct brw_page {
@@ -300,10 +274,7 @@ struct obd_device_target {
         struct lu_target         *obt_lut;
 #endif
         __u64                     obt_mount_count;
-        cfs_semaphore_t           obt_quotachecking;
-        struct lustre_quota_ctxt  obt_qctxt;
-        lustre_quota_version_t    obt_qfmt;
-        cfs_rw_semaphore_t        obt_rwsem;
+       struct rw_semaphore       obt_rwsem;
         struct vfsmount          *obt_vfsmnt;
         struct file              *obt_health_check_filp;
        struct osd_properties     obt_osd_properties;
@@ -351,13 +322,13 @@ struct filter_obd {
         cfs_dentry_t        *fo_dentry_O;
         cfs_dentry_t       **fo_dentry_O_groups;
         struct filter_subdirs   *fo_dentry_O_sub;
-        cfs_mutex_t          fo_init_lock;      /* group initialization lock */
-        int                  fo_committed_group;
+       struct mutex            fo_init_lock;   /* group initialization lock*/
+       int                     fo_committed_group;
 
-        cfs_spinlock_t       fo_objidlock;      /* protect fo_lastobjid */
+       spinlock_t              fo_objidlock;   /* protect fo_lastobjid */
 
-        unsigned long        fo_destroys_in_progress;
-        cfs_mutex_t          fo_create_locks[FILTER_SUBDIR_COUNT];
+       unsigned long           fo_destroys_in_progress;
+       struct mutex            fo_create_locks[FILTER_SUBDIR_COUNT];
 
         cfs_list_t fo_export_list;
         int                  fo_subdir_count;
@@ -368,7 +339,7 @@ struct filter_obd {
         int                  fo_tot_granted_clients;
 
         obd_size             fo_readcache_max_filesize;
-        cfs_spinlock_t       fo_flags_lock;
+       spinlock_t              fo_flags_lock;
         unsigned int         fo_read_cache:1,   /**< enable read-only cache */
                              fo_writethrough_cache:1,/**< read cache writes */
                              fo_mds_ost_sync:1, /**< MDS-OST orphan recovery*/
@@ -381,33 +352,28 @@ struct filter_obd {
         __u64               *fo_last_objids; /* last created objid for groups,
                                               * protected by fo_objidlock */
 
-        cfs_mutex_t          fo_alloc_lock;
+       struct mutex            fo_alloc_lock;
 
         cfs_atomic_t         fo_r_in_flight;
         cfs_atomic_t         fo_w_in_flight;
 
-        /*
-         * per-filter pool of kiobuf's allocated by filter_common_setup() and
-         * torn down by filter_cleanup(). Contains OST_NUM_THREADS elements of
-         * which ->fo_iobuf_count were allocated.
-         *
-         * This pool contains kiobuf used by
-         * filter_{prep,commit}rw_{read,write}() and is shared by all OST
-         * threads.
-         *
-         * Locking: none, each OST thread uses only one element, determined by
-         * its "ordinal number", ->t_id.
-         */
-        struct filter_iobuf    **fo_iobuf_pool;
-        int                      fo_iobuf_count;
-
-        cfs_list_t               fo_llog_list;
-        cfs_spinlock_t           fo_llog_list_lock;
+       /*
+        * per-filter pool of kiobuf's allocated by filter_common_setup() and
+        * torn down by filter_cleanup().
+        *
+        * This pool contains kiobuf used by
+        * filter_{prep,commit}rw_{read,write}() and is shared by all OST
+        * threads.
+        *
+        * Locking: protected by internal lock of cfs_hash, pool can be
+        * found from this hash table by t_id of ptlrpc_thread.
+        */
+       struct cfs_hash         *fo_iobuf_hash;
+
+       cfs_list_t              fo_llog_list;
+       spinlock_t              fo_llog_list_lock;
 
         struct brw_stats         fo_filter_stats;
-        struct lustre_quota_ctxt fo_quota_ctxt;
-        cfs_spinlock_t           fo_quotacheck_lock;
-        cfs_atomic_t             fo_quotachecking;
 
         int                      fo_fmd_max_num; /* per exp filter_mod_data */
         int                      fo_fmd_max_age; /* jiffies to fmd expiry */
@@ -416,7 +382,7 @@ struct filter_obd {
 
 
         /* sptlrpc stuff */
-        cfs_rwlock_t             fo_sptlrpc_lock;
+       rwlock_t                fo_sptlrpc_lock;
         struct sptlrpc_rule_set  fo_sptlrpc_rset;
 
         /* capability related */
@@ -437,6 +403,7 @@ struct timeout_item {
 };
 
 #define OSC_MAX_RIF_DEFAULT       8
+#define MDS_OSC_MAX_RIF_DEFAULT   50
 #define OSC_MAX_RIF_MAX         256
 #define OSC_MAX_DIRTY_DEFAULT  (OSC_MAX_RIF_DEFAULT * 4)
 #define OSC_MAX_DIRTY_MB_MAX   2048     /* arbitrary, but < MAX_LONG bytes */
@@ -456,7 +423,7 @@ enum {
 struct mdc_rpc_lock;
 struct obd_import;
 struct client_obd {
-        cfs_rw_semaphore_t       cl_sem;
+       struct rw_semaphore  cl_sem;
         struct obd_uuid          cl_target_uuid;
         struct obd_import       *cl_import; /* ptlrpc connection state */
         int                      cl_conn_count;
@@ -479,10 +446,22 @@ struct client_obd {
         long                     cl_dirty_transit; /* dirty synchronous */
         long                     cl_avail_grant;   /* bytes of credit for ost */
         long                     cl_lost_grant;    /* lost credits (trunc) */
-        cfs_list_t               cl_cache_waiters; /* waiting for cache/grant */
-        cfs_time_t               cl_next_shrink_grant;   /* jiffies */
-        cfs_list_t               cl_grant_shrink_list;  /* Timeout event list */
-        int                      cl_grant_shrink_interval; /* seconds */
+
+       /* since we allocate grant by blocks, we don't know how many grant will
+        * be used to add a page into cache. As a solution, we reserve maximum
+        * grant before trying to dirty a page and unreserve the rest.
+        * See osc_{reserve|unreserve}_grant for details. */
+       long                 cl_reserved_grant;
+       cfs_list_t           cl_cache_waiters; /* waiting for cache/grant */
+       cfs_time_t           cl_next_shrink_grant;   /* jiffies */
+       cfs_list_t           cl_grant_shrink_list;  /* Timeout event list */
+       int                  cl_grant_shrink_interval; /* seconds */
+
+       /* A chunk is an optimal size used by osc_extent to determine
+        * the extent size. A chunk is max(CFS_PAGE_SIZE, OST block size) */
+       int                  cl_chunkbits;
+       int                  cl_chunk;
+       int                  cl_extent_tax; /* extent overhead, by bytes */
 
         /* keep track of objects that have lois that contain pages which
          * have been queued for async brw.  this lock also protects the
@@ -501,7 +480,10 @@ struct client_obd {
          * Exact type of ->cl_loi_list_lock is defined in arch/obd.h together
          * with client_obd_list_{un,}lock() and
          * client_obd_list_lock_{init,done}() functions.
-         */
+        *
+        * NB by Jinshan: though field names are still _loi_, but actually
+        * osc_object{}s are in the list.
+        */
         client_obd_lock_t        cl_loi_list_lock;
         cfs_list_t               cl_loi_ready_list;
         cfs_list_t               cl_loi_hp_ready_list;
@@ -510,9 +492,9 @@ struct client_obd {
         int                      cl_r_in_flight;
         int                      cl_w_in_flight;
         /* just a sum of the loi/lop pending numbers to be exported by /proc */
-        int                      cl_pending_w_pages;
-        int                      cl_pending_r_pages;
-        int                      cl_max_pages_per_rpc;
+       cfs_atomic_t             cl_pending_w_pages;
+       cfs_atomic_t             cl_pending_r_pages;
+       int                      cl_max_pages_per_rpc;
         int                      cl_max_rpcs_in_flight;
         struct obd_histogram     cl_read_rpc_hist;
         struct obd_histogram     cl_write_rpc_hist;
@@ -521,16 +503,25 @@ struct client_obd {
         struct obd_histogram     cl_read_offset_hist;
         struct obd_histogram     cl_write_offset_hist;
 
+       /* lru for osc caching pages */
+       struct cl_client_cache  *cl_cache;
+       cfs_list_t               cl_lru_osc; /* member of cl_cache->ccc_lru */
+       cfs_atomic_t            *cl_lru_left;
+       cfs_atomic_t             cl_lru_busy;
+       cfs_atomic_t             cl_lru_shrinkers;
+       cfs_atomic_t             cl_lru_in_list;
+       cfs_list_t               cl_lru_list; /* lru page list */
+       client_obd_lock_t        cl_lru_list_lock; /* page list protector */
+
         /* number of in flight destroy rpcs is limited to max_rpcs_in_flight */
         cfs_atomic_t             cl_destroy_in_flight;
         cfs_waitq_t              cl_destroy_waitq;
 
         struct mdc_rpc_lock     *cl_rpc_lock;
         struct mdc_rpc_lock     *cl_close_lock;
-        struct osc_creator       cl_oscc;
 
         /* mgc datastruct */
-        cfs_semaphore_t          cl_mgc_sem;
+       struct semaphore         cl_mgc_sem;
         struct vfsmount         *cl_mgc_vfsmnt;
         struct dentry           *cl_mgc_configs_dir;
         cfs_atomic_t             cl_mgc_refcount;
@@ -546,8 +537,12 @@ struct client_obd {
         /* also protected by the poorly named _loi_list_lock lock above */
         struct osc_async_rc      cl_ar;
 
-        /* used by quotacheck */
-        int                      cl_qchk_stat; /* quotacheck stat of the peer */
+       /* used by quotacheck when the servers are older than 2.4 */
+       int                      cl_qchk_stat; /* quotacheck stat of the peer */
+#define CL_NOT_QUOTACHECKED 1   /* client->cl_qchk_stat init value */
+#if LUSTRE_VERSION_CODE >= OBD_OCD_VERSION(2, 7, 50, 0)
+#warning "please consider removing quotacheck compatibility code"
+#endif
 
         /* sequence manager */
         struct lu_client_seq    *cl_seq;
@@ -556,87 +551,11 @@ struct client_obd {
 
         /* ptlrpc work for writeback in ptlrpcd context */
         void                    *cl_writeback_work;
+       /* hash tables for osc_quota_info */
+       cfs_hash_t              *cl_quota_hash[MAXQUOTAS];
 };
 #define obd2cli_tgt(obd) ((char *)(obd)->u.cli.cl_target_uuid.uuid)
 
-#define CL_NOT_QUOTACHECKED 1   /* client->cl_qchk_stat init value */
-
-struct mgs_obd {
-        struct obd_device_target         mgs_obt;
-        struct ptlrpc_service           *mgs_service;
-        struct vfsmount                 *mgs_vfsmnt;
-        struct super_block              *mgs_sb;
-        struct dentry                   *mgs_configs_dir;
-        cfs_list_t                       mgs_fs_db_list;
-        cfs_mutex_t                      mgs_mutex;
-        cfs_proc_dir_entry_t            *mgs_proc_live;
-        cfs_time_t                       mgs_start_time;
-};
-
-struct mds_obd {
-        /* NB this field MUST be first */
-        struct obd_device_target         mds_obt;
-        struct ptlrpc_service           *mds_service;
-        struct ptlrpc_service           *mds_setattr_service;
-        struct ptlrpc_service           *mds_readpage_service;
-        int                              mds_max_mdsize;
-        int                              mds_max_cookiesize;
-        __u64                            mds_io_epoch;
-        unsigned long                    mds_atime_diff;
-        struct ll_fid                    mds_rootfid;
-        cfs_dentry_t                    *mds_pending_dir;
-        cfs_dentry_t                    *mds_logs_dir;
-        cfs_dentry_t                    *mds_objects_dir;
-        struct llog_handle              *mds_cfg_llh;
-        struct obd_device               *mds_lov_obd;
-        struct obd_uuid                  mds_lov_uuid;
-        char                            *mds_profile;
-        struct obd_export               *mds_lov_exp;
-        struct lov_desc                  mds_lov_desc;
-        __u32                            mds_id;
-
-        /* mark pages dirty for write. */
-        cfs_bitmap_t                    *mds_lov_page_dirty;
-        /* array for store pages with obd_id */
-        void                           **mds_lov_page_array;
-        /* file for store objid */
-        struct file                     *mds_lov_objid_filp;
-        __u32                            mds_lov_objid_count;
-        __u32                            mds_lov_objid_max_index;
-        __u32                            mds_lov_objid_lastpage;
-        __u32                            mds_lov_objid_lastidx;
-
-
-        struct lustre_quota_info         mds_quota_info;
-        cfs_rw_semaphore_t               mds_qonoff_sem;
-        unsigned long                    mds_fl_user_xattr:1,
-                                         mds_fl_acl:1,
-                                         mds_evict_ost_nids:1,
-                                         mds_fl_cfglog:1,
-                                         mds_fl_synced:1,
-                                         mds_quota:1,
-                                         mds_fl_target:1; /* mds have one or
-                                                           * more targets */
-
-        struct upcall_cache             *mds_identity_cache;
-
-        /* for capability keys update */
-        struct lustre_capa_key          *mds_capa_keys;
-        cfs_rw_semaphore_t               mds_notify_lock;
-};
-
-/* lov objid */
-extern __u32 mds_max_ost_index;
-
-#define MDS_LOV_ALLOC_SIZE (CFS_PAGE_SIZE)
-
-#define OBJID_PER_PAGE() (MDS_LOV_ALLOC_SIZE / sizeof(obd_id))
-
-#define MDS_LOV_OBJID_PAGES_COUNT (mds_max_ost_index/OBJID_PER_PAGE())
-
-extern int mds_lov_init_objids(struct obd_device *obd);
-extern void mds_lov_destroy_objids(struct obd_device *obd);
-
 struct obd_id_info {
         __u32   idx;
         obd_id  *data;
@@ -645,24 +564,25 @@ struct obd_id_info {
 /* */
 
 struct echo_obd {
-        struct obd_device_target eo_obt;
-        struct obdo              eo_oa;
-        cfs_spinlock_t           eo_lock;
-        __u64                    eo_lastino;
-        struct lustre_handle     eo_nl_lock;
-        cfs_atomic_t             eo_prep;
+       struct obd_device_target eo_obt;
+       struct obdo             eo_oa;
+       spinlock_t               eo_lock;
+       __u64                    eo_lastino;
+       struct lustre_handle    eo_nl_lock;
+       cfs_atomic_t            eo_prep;
 };
 
 struct ost_obd {
-        struct ptlrpc_service *ost_service;
-        struct ptlrpc_service *ost_create_service;
-        struct ptlrpc_service *ost_io_service;
-        cfs_mutex_t            ost_health_mutex;
+       struct ptlrpc_service   *ost_service;
+       struct ptlrpc_service   *ost_create_service;
+       struct ptlrpc_service   *ost_io_service;
+       struct ptlrpc_service   *ost_seq_service;
+       struct mutex            ost_health_mutex;
 };
 
 struct echo_client_obd {
-        struct obd_export   *ec_exp;   /* the local connection to osc/lov */
-        cfs_spinlock_t       ec_lock;
+       struct obd_export       *ec_exp;   /* the local connection to osc/lov */
+       spinlock_t              ec_lock;
         cfs_list_t           ec_objects;
         cfs_list_t           ec_locks;
         int                  ec_nstripes;
@@ -694,7 +614,7 @@ struct ost_pool {
                                                    lov_obd->lov_tgts */
         unsigned int        op_count;      /* number of OSTs in the array */
         unsigned int        op_size;       /* allocated size of lp_array */
-        cfs_rw_semaphore_t  op_rw_sem;     /* to protect ost_pool use */
+       struct rw_semaphore op_rw_sem;     /* to protect ost_pool use */
 };
 
 /* Round-robin allocator data */
@@ -716,7 +636,7 @@ struct lov_statfs_data {
 /* Stripe placement optimization */
 struct lov_qos {
         cfs_list_t          lq_oss_list; /* list of OSSs that targets use */
-        cfs_rw_semaphore_t  lq_rw_sem;
+       struct rw_semaphore lq_rw_sem;
         __u32               lq_active_oss_count;
         unsigned int        lq_prio_free;   /* priority for free space */
         unsigned int        lq_threshold_rr;/* priority for rr */
@@ -751,7 +671,6 @@ struct lov_tgt_desc {
 #define pool_tgt_count(_p)  _p->pool_obds.op_count
 #define pool_tgt_array(_p)  _p->pool_obds.op_array
 #define pool_tgt_rw_sem(_p) _p->pool_obds.op_rw_sem
-#define pool_tgt(_p, _i)    _p->pool_lov->lov_tgts[_p->pool_obds.op_array[_i]]
 
 struct pool_desc {
         char                  pool_name[LOV_MAXPOOLNAME + 1]; /* name of pool */
@@ -761,8 +680,8 @@ struct pool_desc {
         cfs_hlist_node_t      pool_hash;              /* access by poolname */
         cfs_list_t            pool_list;              /* serial access */
         cfs_proc_dir_entry_t *pool_proc_entry;        /* file in /proc */
-        struct lov_obd       *pool_lov;               /* lov obd to which this
-                                                         pool belong */
+       struct obd_device    *pool_lobd;              /* obd of the lov/lod to which
+                                                      * this pool belongs */
 };
 
 struct lov_obd {
@@ -770,9 +689,8 @@ struct lov_obd {
         struct lov_tgt_desc   **lov_tgts;              /* sparse array */
         struct ost_pool         lov_packed;            /* all OSTs in a packed
                                                           array */
-        cfs_mutex_t             lov_lock;
+       struct mutex            lov_lock;
         struct obd_connect_data lov_ocd;
-        struct lov_qos          lov_qos;               /* qos info per lov */
         cfs_atomic_t            lov_refcount;
         __u32                   lov_tgt_count;         /* how many OBD's */
         __u32                   lov_active_tgt_count;  /* how many active */
@@ -784,14 +702,17 @@ struct lov_obd {
         cfs_list_t              lov_pool_list; /* used for sequential access */
         cfs_proc_dir_entry_t   *lov_pool_proc_entry;
         enum lustre_sec_part    lov_sp_me;
+
+       /* Cached LRU pages from upper layer */
+       void                   *lov_cache;
 };
 
 struct lmv_tgt_desc {
-        struct obd_uuid         ltd_uuid;
-        struct obd_export      *ltd_exp;
-        int                     ltd_active; /* is this target up for requests */
-        int                     ltd_idx;
-        cfs_mutex_t             ltd_fid_mutex;
+       struct obd_uuid         ltd_uuid;
+       struct obd_export       *ltd_exp;
+       int                     ltd_idx;
+       struct mutex            ltd_fid_mutex;
+       unsigned long           ltd_active:1; /* target up for requests */
 };
 
 enum placement_policy {
@@ -804,32 +725,30 @@ enum placement_policy {
 typedef enum placement_policy placement_policy_t;
 
 struct lmv_obd {
-        int                     refcount;
-        struct lu_client_fld    lmv_fld;
-        cfs_spinlock_t          lmv_lock;
-        placement_policy_t      lmv_placement;
-        struct lmv_desc         desc;
-        struct obd_uuid         cluuid;
-        struct obd_export       *exp;
-
-        int                     connected;
-        int                     max_easize;
-        int                     max_def_easize;
-        int                     max_cookiesize;
-        int                     server_timeout;
-        cfs_mutex_t             init_mutex;
-
-        struct lmv_tgt_desc     *tgts;
-        int                     tgts_size;
-
-        struct obd_connect_data *datas;
-        int                     datas_size;
-
-        struct obd_connect_data conn_data;
+       int                     refcount;
+       struct lu_client_fld    lmv_fld;
+       spinlock_t              lmv_lock;
+       placement_policy_t      lmv_placement;
+       struct lmv_desc         desc;
+       struct obd_uuid         cluuid;
+       struct obd_export       *exp;
+
+       struct mutex            init_mutex;
+       int                     connected;
+       int                     max_easize;
+       int                     max_def_easize;
+       int                     max_cookiesize;
+       int                     server_timeout;
+
+       int                     tgts_size; /* size of tgts array */
+       struct lmv_tgt_desc     **tgts;
+
+       struct obd_connect_data conn_data;
 };
 
 struct niobuf_local {
-        __u64 offset;
+       __u64 lnb_file_offset;
+       __u32 lnb_page_offset;
         __u32 len;
         __u32 flags;
         cfs_page_t    *page;
@@ -843,11 +762,14 @@ struct niobuf_local {
 
 #define LUSTRE_CMM_NAME         "cmm"
 #define LUSTRE_MDD_NAME         "mdd"
-#define LUSTRE_OSD_NAME         "osd-ldiskfs"
+#define LUSTRE_OSD_LDISKFS_NAME        "osd-ldiskfs"
+#define LUSTRE_OSD_ZFS_NAME     "osd-zfs"
 #define LUSTRE_VVP_NAME         "vvp"
 #define LUSTRE_LMV_NAME         "lmv"
 #define LUSTRE_CMM_MDC_NAME     "cmm-mdc"
 #define LUSTRE_SLP_NAME         "slp"
+#define LUSTRE_LOD_NAME                "lod"
+#define LUSTRE_OSP_NAME                "osp"
 
 /* obd device type names */
  /* FIXME all the references to LUSTRE_MDS_NAME should be swapped with LUSTRE_MDT_NAME */
@@ -864,6 +786,7 @@ struct niobuf_local {
 #define LUSTRE_CACHEOBD_NAME    "cobd"
 #define LUSTRE_ECHO_NAME        "obdecho"
 #define LUSTRE_ECHO_CLIENT_NAME "echo_client"
+#define LUSTRE_QMT_NAME         "qmt"
 
 /* Constant obd names (post-rename) */
 #define LUSTRE_MDS_OBDNAME "MDS"
@@ -871,9 +794,102 @@ struct niobuf_local {
 #define LUSTRE_MGS_OBDNAME "MGS"
 #define LUSTRE_MGC_OBDNAME "MGC"
 
+static inline int is_osp_on_mdt(char *name)
+{
+       char   *ptr;
+
+       ptr = strrchr(name, '-');
+       if (ptr == NULL) {
+               CERROR("%s is not a obdname\n", name);
+               return 0;
+       }
+
+       /* 1.8 OSC/OSP name on MDT is fsname-OSTxxxx-osc */
+       if (strncmp(ptr + 1, "osc", 3) == 0)
+               return 1;
+
+       if (strncmp(ptr + 1, "MDT", 3) != 0)
+               return 0;
+
+       while (*(--ptr) != '-' && ptr != name);
+
+       if (ptr == name)
+               return 0;
+
+       if (strncmp(ptr + 1, LUSTRE_OSP_NAME, strlen(LUSTRE_OSP_NAME)) != 0 &&
+           strncmp(ptr + 1, LUSTRE_OSC_NAME, strlen(LUSTRE_OSC_NAME)) != 0)
+               return 0;
+
+       return 1;
+}
+
 /* Don't conflict with on-wire flags OBD_BRW_WRITE, etc */
 #define N_LOCAL_TEMP_PAGE 0x10000000
 
+/* Currently the connection osp is only for connecting MDT0, the
+ * name would either be
+ * fsname-MDT0000-osp-OSTxxxx or fsname-MDT0000-osp-MDT0000 */
+static inline int is_osp_for_connection(char *name)
+{
+       char    *ptr;
+       int     osp_on_mdt0 = 0;
+       char    *endptr;
+
+       ptr = strrchr(name, '-');
+       if (ptr == NULL) {
+               CERROR("%s is not a obdname\n", name);
+               return 0;
+       }
+
+       if (strncmp(ptr + 1, "OST", 3) != 0 && strncmp(ptr + 1, "MDT", 3) != 0)
+               return 0;
+
+       if (strncmp(ptr + 1, "MDT", 3) == 0) {
+               int index;
+
+#ifdef __KERNEL__
+               index = simple_strtoul(ptr + 4, &endptr, 16);
+#else
+               index = strtoul(ptr + 4, &endptr, 16);
+#endif
+               if (index != 0)
+                       return 0;
+               osp_on_mdt0 = 1;
+       }
+
+       /* match the "-osp" */
+       if (ptr - name < strlen(LUSTRE_OSP_NAME) + 1)
+               return 0;
+
+       ptr -= (strlen(LUSTRE_OSP_NAME) + 1);
+       if (*ptr != '-')
+               return 0;
+
+       if (strncmp(ptr + 1, LUSTRE_OSP_NAME, strlen(LUSTRE_OSP_NAME)) != 0)
+               return 0;
+
+       if (osp_on_mdt0) {
+               int index = 0;
+               while (*(--ptr) != '-' && ptr != name);
+
+               if (ptr == name) {
+                       CERROR("%s is not a valid osp name\n", name);
+                       return 0;
+               }
+
+               if (strncmp(ptr + 1, "MDT", 3) != 0)
+                       return 0;
+#ifdef __KERNEL__
+               index = simple_strtoul(ptr + 4, &endptr, 16);
+#else
+               index = strtoul(ptr + 4, &endptr, 16);
+#endif
+               if (index != 0)
+                       return 0;
+       }
+       return 1;
+}
+
 struct obd_trans_info {
         __u64                    oti_transno;
         __u64                    oti_xid;
@@ -886,6 +902,8 @@ struct obd_trans_info {
         struct llog_cookie       oti_onecookie;
         struct llog_cookie      *oti_logcookies;
         int                      oti_numcookies;
+       /** synchronous write is needed */
+       long                     oti_sync_write:1;
 
         /* initial thread handling transaction */
         struct ptlrpc_thread *   oti_thread;
@@ -974,8 +992,6 @@ enum obd_notify_event {
         OBD_NOTIFY_SYNC,
         /* Configuration event */
         OBD_NOTIFY_CONFIG,
-        /* Trigger quota recovery */
-        OBD_NOTIFY_QUOTA,
         /* Administratively deactivate/activate event */
         OBD_NOTIFY_DEACTIVATE,
         OBD_NOTIFY_ACTIVATE
@@ -1000,10 +1016,10 @@ struct obd_notify_upcall {
 };
 
 struct target_recovery_data {
-        svc_handler_t     trd_recovery_handler;
-        pid_t             trd_processing_task;
-        cfs_completion_t  trd_starting;
-        cfs_completion_t  trd_finishing;
+       svc_handler_t           trd_recovery_handler;
+       pid_t                   trd_processing_task;
+       struct completion       trd_starting;
+       struct completion       trd_finishing;
 };
 
 /**
@@ -1042,10 +1058,10 @@ struct obd_llog_group {
         int                olg_seq;
         struct llog_ctxt  *olg_ctxts[LLOG_MAX_CTXTS];
         cfs_waitq_t        olg_waitq;
-        cfs_spinlock_t     olg_lock;
-        struct obd_export *olg_exp;
-        int                olg_initializing;
-        cfs_mutex_t        olg_cat_processing;
+       spinlock_t         olg_lock;
+       struct obd_export *olg_exp;
+       int                olg_initializing;
+       struct mutex       olg_cat_processing;
 };
 
 /* corresponds to one of the obd's */
@@ -1098,21 +1114,21 @@ struct obd_device {
         cfs_list_t              obd_unlinked_exports;
         cfs_list_t              obd_delayed_exports;
         int                     obd_num_exports;
-        cfs_spinlock_t          obd_nid_lock;
-        struct ldlm_namespace  *obd_namespace;
-        struct ptlrpc_client    obd_ldlm_client; /* XXX OST/MDS only */
-        /* a spinlock is OK for what we do now, may need a semaphore later */
-        cfs_spinlock_t          obd_dev_lock; /* protects obd bitfield above */
-        cfs_mutex_t             obd_dev_mutex;
-        __u64                   obd_last_committed;
-        struct fsfilt_operations *obd_fsops;
-        cfs_spinlock_t          obd_osfs_lock;
-        struct obd_statfs       obd_osfs;       /* locked by obd_osfs_lock */
-        __u64                   obd_osfs_age;
-        struct lvfs_run_ctxt    obd_lvfs_ctxt;
-        struct obd_llog_group   obd_olg; /* default llog group */
-        struct obd_device      *obd_observer;
-        cfs_rw_semaphore_t      obd_observer_link_sem;
+       spinlock_t              obd_nid_lock;
+       struct ldlm_namespace  *obd_namespace;
+       struct ptlrpc_client    obd_ldlm_client; /* XXX OST/MDS only */
+       /* a spinlock is OK for what we do now, may need a semaphore later */
+       spinlock_t              obd_dev_lock; /* protect OBD bitfield above */
+       struct mutex            obd_dev_mutex;
+       __u64                   obd_last_committed;
+       struct fsfilt_operations *obd_fsops;
+       spinlock_t              obd_osfs_lock;
+       struct obd_statfs       obd_osfs;       /* locked by obd_osfs_lock */
+       __u64                   obd_osfs_age;
+       struct lvfs_run_ctxt    obd_lvfs_ctxt;
+       struct obd_llog_group   obd_olg;        /* default llog group */
+       struct obd_device       *obd_observer;
+       struct rw_semaphore     obd_observer_link_sem;
         struct obd_notify_upcall obd_upcall;
         struct obd_export       *obd_self_export;
         /* list of exports in LRU order, for ping evictor, with obd_dev_lock */
@@ -1125,7 +1141,7 @@ struct obd_device {
         int                              obd_delayed_clients;
         /* this lock protects all recovery list_heads, timer and
          * obd_next_recovery_transno value */
-        cfs_spinlock_t                   obd_recovery_task_lock;
+       spinlock_t                       obd_recovery_task_lock;
         __u64                            obd_next_recovery_transno;
         int                              obd_replayed_requests;
         int                              obd_requests_queued_for_recovery;
@@ -1152,14 +1168,12 @@ struct obd_device {
         union {
                 struct obd_device_target obt;
                 struct filter_obd filter;
-                struct mds_obd mds;
                 struct client_obd cli;
                 struct ost_obd ost;
                 struct echo_client_obd echo_client;
                 struct echo_obd echo;
                 struct lov_obd lov;
                 struct lmv_obd lmv;
-                struct mgs_obd mgs;
         } u;
         /* Fields used by LProcFS */
         unsigned int           obd_cntr_base;
@@ -1179,7 +1193,7 @@ struct obd_device {
         /**
          * Ldlm pool part. Save last calculated SLV and Limit.
          */
-        cfs_rwlock_t           obd_pool_lock;
+       rwlock_t                obd_pool_lock;
         int                    obd_pool_limit;
         __u64                  obd_pool_slv;
 
@@ -1188,9 +1202,12 @@ struct obd_device {
          * debugging.
          */
         struct lu_ref          obd_reference;
+
+       int                    obd_conn_inprogress;
 };
 
 #define OBD_LLOG_FL_SENDNOW     0x0001
+#define OBD_LLOG_FL_EXIT       0x0002
 
 enum obd_cleanup_stage {
 /* Special case hack for MDS LOVs */
@@ -1227,7 +1244,6 @@ enum obd_cleanup_stage {
 #define KEY_NEXT_ID             "next_id"
 #define KEY_READ_ONLY           "read-only"
 #define KEY_REGISTER_TARGET     "register_target"
-#define KEY_REVIMP_UPD          "revimp_update"
 #define KEY_SET_FS              "set_fs"
 #define KEY_TGT_COUNT           "tgt_count"
 /*      KEY_SET_INFO in lustre_idl.h */
@@ -1235,6 +1251,9 @@ enum obd_cleanup_stage {
 #define KEY_CONNECT_FLAG        "connect_flags"
 #define KEY_SYNC_LOCK_CANCEL    "sync_lock_cancel"
 
+#define KEY_CACHE_SET          "cache_set"
+#define KEY_CACHE_LRU_SHRINK   "cache_lru_shrink"
+
 struct lu_context;
 
 /* /!\ must be coherent with include/linux/namei.h on patched kernel */
@@ -1249,6 +1268,8 @@ struct lu_context;
 #define IT_EXEC     (1 << 8)
 #define IT_PIN      (1 << 9)
 #define IT_LAYOUT   (1 << 10)
+#define IT_QUOTA_DQACQ (1 << 11)
+#define IT_QUOTA_CONN  (1 << 12)
 
 static inline int it_to_lock_mode(struct lookup_intent *it)
 {
@@ -1285,9 +1306,7 @@ struct md_op_data {
         /* iattr fields and blocks. */
         struct iattr            op_attr;
 #ifdef __KERNEL__
-#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,14)
-        unsigned int            op_attr_flags;
-#endif
+       unsigned int            op_attr_flags;
 #endif
         __u64                   op_valid;
         loff_t                  op_attr_blocks;
@@ -1317,6 +1336,12 @@ typedef int (* md_enqueue_cb_t)(struct ptlrpc_request *req,
                                 struct md_enqueue_info *minfo,
                                 int rc);
 
+/* seq client type */
+enum lu_cli_type {
+       LUSTRE_SEQ_METADATA = 1,
+       LUSTRE_SEQ_DATA
+};
+
 struct md_enqueue_info {
         struct md_op_data       mi_data;
         struct lookup_intent    mi_it;
@@ -1365,9 +1390,10 @@ struct obd_ops {
                            void *localdata);
         int (*o_disconnect)(struct obd_export *exp);
 
-        /* Initialize/finalize fids infrastructure. */
-        int (*o_fid_init)(struct obd_export *exp);
-        int (*o_fid_fini)(struct obd_export *exp);
+       /* Initialize/finalize fids infrastructure. */
+       int (*o_fid_init)(struct obd_device *obd,
+                         struct obd_export *exp, enum lu_cli_type type);
+       int (*o_fid_fini)(struct obd_device *obd);
 
         /* Allocate new fid according to passed @hint. */
         int (*o_fid_alloc)(struct obd_export *exp, struct lu_fid *fid,
@@ -1377,8 +1403,6 @@ struct obd_ops {
          * Object with @fid is getting deleted, we may want to do something
          * about this.
          */
-        int (*o_fid_delete)(struct obd_export *exp, const struct lu_fid *fid);
-
         int (*o_statfs)(const struct lu_env *, struct obd_export *exp,
                         struct obd_statfs *osfs, __u64 max_age, __u32 flags);
         int (*o_statfs_async)(struct obd_export *exp, struct obd_info *oinfo,
@@ -1484,11 +1508,6 @@ struct obd_ops {
                             struct obd_quotactl *);
         int (*o_quotactl)(struct obd_device *, struct obd_export *,
                           struct obd_quotactl *);
-        int (*o_quota_adjust_qunit)(struct obd_export *exp,
-                                    struct quota_adjust_qunit *oqaq,
-                                    struct lustre_quota_ctxt *qctxt,
-                                    struct ptlrpc_request_set *rqset);
-
 
         int (*o_ping)(const struct lu_env *, struct obd_export *exp);
 
@@ -1562,7 +1581,7 @@ struct md_ops {
         int (*m_enqueue)(struct obd_export *, struct ldlm_enqueue_info *,
                          struct lookup_intent *, struct md_op_data *,
                          struct lustre_handle *, void *, int,
-                         struct ptlrpc_request **, int);
+                        struct ptlrpc_request **, __u64);
         int (*m_getattr)(struct obd_export *, struct md_op_data *,
                          struct ptlrpc_request **);
         int (*m_getattr_name)(struct obd_export *, struct md_op_data *,
@@ -1570,7 +1589,7 @@ struct md_ops {
         int (*m_intent_lock)(struct obd_export *, struct md_op_data *,
                              void *, int, struct lookup_intent *, int,
                              struct ptlrpc_request **,
-                             ldlm_blocking_callback, int);
+                            ldlm_blocking_callback, __u64);
         int (*m_link)(struct obd_export *, struct md_op_data *,
                       struct ptlrpc_request **);
         int (*m_rename)(struct obd_export *, struct md_op_data *,
@@ -1615,7 +1634,7 @@ struct md_ops {
                                         struct obd_client_handle *);
         int (*m_set_lock_data)(struct obd_export *, __u64 *, void *, __u64 *);
 
-        ldlm_mode_t (*m_lock_match)(struct obd_export *, int,
+       ldlm_mode_t (*m_lock_match)(struct obd_export *, __u64,
                                     const struct lu_fid *, ldlm_type_t,
                                     ldlm_policy_data_t *, ldlm_mode_t,
                                     struct lustre_handle *);
@@ -1675,45 +1694,10 @@ static inline const struct lsm_operations *lsm_op_find(int magic)
         }
 }
 
-int lvfs_check_io_health(struct obd_device *obd, struct file *file);
-
 /* Requests for obd_extent_calc() */
 #define OBD_CALC_STRIPE_START   1
 #define OBD_CALC_STRIPE_END     2
 
-static inline void obd_transno_commit_cb(struct obd_device *obd, __u64 transno,
-                                         struct obd_export *exp, int error)
-{
-        if (error) {
-                CERROR("%s: transno "LPU64" commit error: %d\n",
-                       obd->obd_name, transno, error);
-                return;
-        }
-        if (exp && transno > exp->exp_last_committed) {
-                CDEBUG(D_HA, "%s: transno "LPU64" committed\n",
-                       obd->obd_name, transno);
-                exp->exp_last_committed = transno;
-                ptlrpc_commit_replies(exp);
-        } else {
-                CDEBUG(D_INFO, "%s: transno "LPU64" committed\n",
-                       obd->obd_name, transno);
-        }
-        if (transno > obd->obd_last_committed)
-                obd->obd_last_committed = transno;
-}
-
-static inline void init_obd_quota_ops(quota_interface_t *interface,
-                                      struct obd_ops *obd_ops)
-{
-        if (!interface)
-                return;
-
-        LASSERT(obd_ops);
-        obd_ops->o_quotacheck = QUOTA_OP(interface, check);
-        obd_ops->o_quotactl = QUOTA_OP(interface, ctl);
-        obd_ops->o_quota_adjust_qunit = QUOTA_OP(interface, adjust_qunit);
-}
-
 static inline struct lustre_capa *oinfo_capa(struct obd_info *oinfo)
 {
         return oinfo->oi_capa;