Whamcloud - gitweb
Branch: HEAD
[fs/lustre-release.git] / lustre / include / obd.h
index e5804fe..2a7e40b 100644 (file)
@@ -1,5 +1,37 @@
 /* -*- mode: c; c-basic-offset: 8; indent-tabs-mode: nil; -*-
  * vim:expandtab:shiftwidth=8:tabstop=8:
+ *
+ * GPL HEADER START
+ *
+ * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 only,
+ * as published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope that it will be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * General Public License version 2 for more details (a copy is included
+ * in the LICENSE file that accompanied this code).
+ *
+ * You should have received a copy of the GNU General Public License
+ * version 2 along with this program; If not, see
+ * http://www.sun.com/software/products/lustre/docs/GPLv2.pdf
+ *
+ * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
+ * CA 95054 USA or visit www.sun.com if you need additional information or
+ * have any questions.
+ *
+ * GPL HEADER END
+ */
+/*
+ * Copyright  2008 Sun Microsystems, Inc. All rights reserved
+ * Use is subject to license terms.
+ */
+/*
+ * This file is part of Lustre, http://www.lustre.org/
+ * Lustre is a trademark of Sun Microsystems, Inc.
  */
 
 #ifndef __OBD_H
@@ -29,6 +61,7 @@
 
 #include <lustre/lustre_idl.h>
 #include <lu_object.h>
+#include <lu_ref.h>
 #include <lustre_lib.h>
 #include <lustre_export.h>
 #include <lustre_quota.h>
@@ -75,6 +108,12 @@ struct lov_oinfo {                 /* per-stripe data structure */
         struct osc_async_rc     loi_ar;
 };
 
+static inline void loi_kms_set(struct lov_oinfo *oinfo, __u64 kms)
+{
+        oinfo->loi_kms = kms;
+        oinfo->loi_kms_valid = 1;
+}
+
 static inline void loi_init(struct lov_oinfo *loi)
 {
         CFS_INIT_LIST_HEAD(&loi->loi_read_lop.lop_pending);
@@ -118,6 +157,7 @@ struct lov_stripe_md {
                 __u32 lw_stripe_size;      /* size of the stripe */
                 __u32 lw_pattern;          /* striping pattern (RAID0, RAID1) */
                 unsigned lw_stripe_count;  /* number of objects being striped over */
+                char  lw_pool_name[LOV_MAXPOOLNAME]; /* pool name */
         } lsm_wire;
 
         struct lov_array_info *lsm_array; /*Only for joined file array info*/
@@ -131,10 +171,11 @@ struct lov_stripe_md {
 #define lsm_stripe_size  lsm_wire.lw_stripe_size
 #define lsm_pattern      lsm_wire.lw_pattern
 #define lsm_stripe_count lsm_wire.lw_stripe_count
+#define lsm_pool_name    lsm_wire.lw_pool_name
 
 struct obd_info;
 
-typedef int (*obd_enqueue_update_f)(struct obd_info *oinfo, int rc);
+typedef int (*obd_enqueue_update_f)(void *cookie, int rc);
 
 /* obd info for a particular level (lov, osc). */
 struct obd_info {
@@ -198,52 +239,6 @@ struct brw_page {
         obd_flag flag;
 };
 
-enum async_flags {
-        ASYNC_READY = 0x1, /* ap_make_ready will not be called before this
-                              page is added to an rpc */
-        ASYNC_URGENT = 0x2, /* page must be put into an RPC before return */
-        ASYNC_COUNT_STABLE = 0x4, /* ap_refresh_count will not be called
-                                     to give the caller a chance to update
-                                     or cancel the size of the io */
-        ASYNC_GROUP_SYNC = 0x8,  /* ap_completion will not be called, instead
-                                    the page is accounted for in the
-                                    obd_io_group given to
-                                    obd_queue_group_io */
-};
-
-struct obd_async_page_ops {
-        int  (*ap_make_ready)(void *data, int cmd);
-        int  (*ap_refresh_count)(void *data, int cmd);
-        void (*ap_fill_obdo)(void *data, int cmd, struct obdo *oa);
-        void (*ap_update_obdo)(void *data, int cmd, struct obdo *oa,
-                               obd_valid valid);
-        int  (*ap_completion)(void *data, int cmd, struct obdo *oa, int rc);
-        struct obd_capa *(*ap_lookup_capa)(void *data, int cmd);
-};
-
-/* the `oig' is passed down from a caller of obd rw methods.  the callee
- * records enough state such that the caller can sleep on the oig and
- * be woken when all the callees have finished their work */
-struct obd_io_group {
-        spinlock_t      oig_lock;
-        atomic_t        oig_refcount;
-        int             oig_pending;
-        int             oig_rc;
-        struct list_head oig_occ_list;
-        cfs_waitq_t     oig_waitq;
-};
-
-/* the oig callback context lets the callee of obd rw methods register
- * for callbacks from the caller. */
-struct oig_callback_context {
-        struct list_head occ_oig_item;
-        /* called when the caller has received a signal while sleeping.
-         * callees of this method are encouraged to abort their state
-         * in the oig.  This may be called multiple times. */
-        void (*occ_interrupted)(struct oig_callback_context *occ);
-        unsigned long interrupted:1;
-};
-
 /* Individual type definitions */
 
 struct ost_server_data;
@@ -253,13 +248,10 @@ struct obd_device_target {
         struct super_block       *obt_sb;
         atomic_t                  obt_quotachecking;
         struct lustre_quota_ctxt  obt_qctxt;
+        lustre_quota_version_t    obt_qfmt;
+        struct rw_semaphore       obt_rwsem;
 };
 
-typedef void (*obd_pin_extent_cb)(void *data);
-typedef int (*obd_page_removal_cb_t)(void *data, int discard);
-typedef int (*obd_lock_cancel_cb)(struct ldlm_lock *,struct ldlm_lock_desc *,
-                                   void *, int);
-
 /* llog contexts */
 enum llog_ctxt_id {
         LLOG_CONFIG_ORIG_CTXT  =  0,
@@ -274,6 +266,9 @@ enum llog_ctxt_id {
         LLOG_TEST_REPL_CTXT,
         LLOG_LOVEA_ORIG_CTXT,
         LLOG_LOVEA_REPL_CTXT,
+        LLOG_CHANGELOG_ORIG_CTXT,      /**< changelog generation on mdd */
+        LLOG_CHANGELOG_REPL_CTXT,      /**< changelog access on clients */
+        LLOG_CHANGELOG_USER_ORIG_CTXT, /**< for multiple changelog consumers */
         LLOG_MAX_CTXTS
 };
 
@@ -320,8 +315,11 @@ struct filter_obd {
         obd_size             fo_tot_dirty;      /* protected by obd_osfs_lock */
         obd_size             fo_tot_granted;    /* all values in bytes */
         obd_size             fo_tot_pending;
+        int                  fo_tot_granted_clients;
 
         obd_size             fo_readcache_max_filesize;
+        int                  fo_read_cache;
+        int                  fo_writethrough_cache;
 
         struct obd_import   *fo_mdc_imp;
         struct obd_uuid      fo_mdc_uuid;
@@ -369,10 +367,18 @@ struct filter_obd {
         unsigned int             fo_fl_oss_capa;
         struct list_head         fo_capa_keys;
         struct hlist_head       *fo_capa_hash;
-
-        void                    *fo_lcm;
+        struct llog_commit_master *fo_lcm;
+        int                      fo_sec_level;
 };
 
+struct timeout_item {
+        enum timeout_event ti_event;
+        cfs_time_t         ti_timeout;
+        timeout_cb_t       ti_cb;
+        void              *ti_cb_data;
+        struct list_head   ti_obd_list;
+        struct list_head   ti_chain;
+};
 #define OSC_MAX_RIF_DEFAULT       8
 #define OSC_MAX_RIF_MAX         256
 #define OSC_MAX_DIRTY_DEFAULT  (OSC_MAX_RIF_DEFAULT * 4)
@@ -384,7 +390,6 @@ struct filter_obd {
 
 struct mdc_rpc_lock;
 struct obd_import;
-struct lustre_cache;
 struct client_obd {
         struct rw_semaphore      cl_sem;
         struct obd_uuid          cl_target_uuid;
@@ -396,9 +401,9 @@ struct client_obd {
         int                      cl_max_mds_easize;
         int                      cl_max_mds_cookiesize;
 
-        /* security configuration */
-        struct sptlrpc_rule_set  cl_sptlrpc_rset;
-        enum lustre_sec_part     cl_sec_part;
+        enum lustre_sec_part     cl_sp_me;
+        enum lustre_sec_part     cl_sp_to;
+        struct sptlrpc_flavor    cl_flvr_mgc;   /* fixed flavor of mgc->mgs */
 
         //struct llog_canceld_ctxt *cl_llcd; /* it's included by obd_llog_ctxt */
         void                    *cl_llcd_offset;
@@ -406,9 +411,13 @@ struct client_obd {
         /* the grant values are protected by loi_list_lock below */
         long                     cl_dirty;         /* all _dirty_ in bytes */
         long                     cl_dirty_max;     /* allowed w/o rpc */
+        long                     cl_dirty_transit; /* dirty synchronous */
         long                     cl_avail_grant;   /* bytes of credit for ost */
         long                     cl_lost_grant;    /* lost credits (trunc) */
         struct list_head         cl_cache_waiters; /* waiting for cache/grant */
+        cfs_time_t               cl_next_shrink_grant;   /* jiffies */
+        struct list_head         cl_grant_shrink_list;  /* Timeout event list */
+        struct semaphore         cl_grant_sem;   /*grant shrink list semaphore*/
 
         /* keep track of objects that have lois that contain pages which
          * have been queued for async brw.  this lock also protects the
@@ -468,7 +477,7 @@ struct client_obd {
         __u32                    cl_supp_cksum_types;
         /* checksum algorithm to be used */
         cksum_type_t             cl_cksum_type;
+
         /* also protected by the poorly named _loi_list_lock lock above */
         struct osc_async_rc      cl_ar;
 
@@ -479,10 +488,6 @@ struct client_obd {
         struct lu_client_seq    *cl_seq;
 
         atomic_t                 cl_resends; /* resend count */
-
-        /* Cache of triples */
-        struct lustre_cache     *cl_cache;
-        obd_lock_cancel_cb       cl_ext_lock_cancel_cb;
 };
 #define obd2cli_tgt(obd) ((char *)(obd)->u.cli.cl_target_uuid.uuid)
 
@@ -530,12 +535,13 @@ struct mds_obd {
         __u32                            mds_id;
 
         /* mark pages dirty for write. */
-        bitmap_t                         *mds_lov_page_dirty;
+        bitmap_t                        *mds_lov_page_dirty;
         /* array for store pages with obd_id */
-        void                            **mds_lov_page_array;
+        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;
 
@@ -550,12 +556,16 @@ struct mds_obd {
                                          mds_fl_acl:1,
                                          mds_evict_ost_nids:1,
                                          mds_fl_cfglog:1,
-                                         mds_fl_synced: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;
+        struct rw_semaphore              mds_notify_lock;
 };
 
 /* lov objid */
@@ -596,6 +606,7 @@ struct echo_client_obd {
         struct obd_export   *ec_exp;   /* the local connection to osc/lov */
         spinlock_t           ec_lock;
         struct list_head     ec_objects;
+        struct list_head     ec_locks;
         int                  ec_nstripes;
         __u64                ec_unique;
 };
@@ -603,10 +614,11 @@ struct echo_client_obd {
 struct lov_qos_oss {
         struct obd_uuid     lqo_uuid;       /* ptlrpc's c_remote_uuid */
         struct list_head    lqo_oss_list;   /* link to lov_qos */
-        __u32               lqo_ost_count;  /* number of osts on this oss */
         __u64               lqo_bavail;     /* total bytes avail on OSS */
         __u64               lqo_penalty;    /* current penalty */
         __u64               lqo_penalty_per_obj; /* penalty decrease every obj*/
+        time_t              lqo_used;       /* last used time, seconds */
+        __u32               lqo_ost_count;  /* number of osts on this oss */
 };
 
 struct ltd_qos {
@@ -614,24 +626,44 @@ struct ltd_qos {
         __u64               ltq_penalty;     /* current penalty */
         __u64               ltq_penalty_per_obj; /* penalty decrease every obj*/
         __u64               ltq_weight;      /* net weighting */
+        time_t              ltq_used;        /* last used time, seconds */
         unsigned int        ltq_usable:1;    /* usable for striping */
 };
 
+/* Generic subset of OSTs */
+struct ost_pool {
+        __u32              *op_array;        /* array of index of
+                                                lov_obd->lov_tgts */
+        unsigned int        op_count;        /* number of OSTs in the array */
+        unsigned int        op_size;         /* allocated size of lp_array */
+        struct rw_semaphore op_rw_sem;       /* to protect ost_pool use */
+};
+
+/* Round-robin allocator data */
+struct lov_qos_rr {
+        __u32               lqr_start_idx;   /* start index of new inode */
+        __u32               lqr_offset_idx;  /* aliasing for start_idx  */
+        int                 lqr_start_count; /* reseed counter */
+        struct ost_pool     lqr_pool;        /* round-robin optimized list */
+        unsigned long       lqr_dirty:1;     /* recalc round-robin list */
+};
+
+/* Stripe placement optimization */
 struct lov_qos {
         struct list_head    lq_oss_list;    /* list of OSSs that targets use */
         struct rw_semaphore lq_rw_sem;
         __u32               lq_active_oss_count;
-        __u32              *lq_rr_array;    /* round-robin optimized list */
-        unsigned int        lq_rr_size;     /* rr array size */
         unsigned int        lq_prio_free;   /* priority for free space */
+        unsigned int        lq_threshold_rr;/* priority for rr */
+        struct lov_qos_rr   lq_rr;          /* round robin qos data */
         unsigned long       lq_dirty:1,     /* recalc qos data */
-                            lq_dirty_rr:1,  /* recalc round-robin list */
                             lq_same_space:1,/* the ost's all have approx.
                                                the same space avail */
                             lq_reset:1;     /* zero current penalties */
 };
 
 struct lov_tgt_desc {
+        struct list_head    ltd_kill;
         struct obd_uuid     ltd_uuid;
         struct obd_export  *ltd_exp;
         struct ltd_qos      ltd_qos;     /* qos info per target */
@@ -642,9 +674,30 @@ struct lov_tgt_desc {
                             ltd_reap:1;  /* should this target be deleted */
 };
 
+/* Pool metadata */
+#define pool_tgt_size(_p)   _p->pool_obds.op_size
+#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 */
+        struct ost_pool       pool_obds;              /* pool members */
+        atomic_t              pool_refcount;          /* pool ref. counter */
+        struct lov_qos_rr     pool_rr;                /* round robin qos */
+        struct hlist_node     pool_hash;              /* access by poolname */
+        struct list_head      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 lov_obd {
         struct lov_desc         desc;
-        struct lov_tgt_desc   **lov_tgts;
+        struct lov_tgt_desc   **lov_tgts;              /* sparse array */
+        struct ost_pool         lov_packed;            /* all OSTs in a packed
+                                                          array */
         struct semaphore        lov_lock;
         struct obd_connect_data lov_ocd;
         struct lov_qos          lov_qos;               /* qos info per lov */
@@ -653,13 +706,12 @@ struct lov_obd {
         __u32                   lov_active_tgt_count;  /* how many active */
         __u32                   lov_death_row;/* tgts scheduled to be deleted */
         __u32                   lov_tgt_size;   /* size of tgts array */
-        __u32                   lov_start_idx;  /* start index of new inode */
-        __u32                   lov_offset_idx; /* aliasing for start_idx  */
-        int                     lov_start_count;/* reseed counter */
         int                     lov_connects;
-        obd_page_removal_cb_t   lov_page_removal_cb;
-        obd_pin_extent_cb       lov_page_pin_cb;
-        obd_lock_cancel_cb      lov_lock_cancel_cb;
+        int                     lov_pool_count;
+        lustre_hash_t          *lov_pools_hash_body; /* used for key access */
+        struct list_head        lov_pool_list; /* used for sequential access */
+        cfs_proc_dir_entry_t   *lov_pool_proc_entry;
+        enum lustre_sec_part    lov_sp_me;
 };
 
 struct lmv_tgt_desc {
@@ -670,10 +722,20 @@ struct lmv_tgt_desc {
         struct semaphore        ltd_fid_sem;
 };
 
+enum placement_policy {
+        PLACEMENT_CHAR_POLICY   = 0,
+        PLACEMENT_NID_POLICY    = 1,
+        PLACEMENT_INVAL_POLICY  = 2,
+        PLACEMENT_MAX_POLICY
+};
+
+typedef enum placement_policy placement_policy_t;
+
 struct lmv_obd {
         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;
@@ -710,8 +772,10 @@ struct niobuf_local {
 #define LUSTRE_CMM_NAME         "cmm"
 #define LUSTRE_MDD_NAME         "mdd"
 #define LUSTRE_OSD_NAME         "osd"
+#define LUSTRE_VVP_NAME         "vvp"
 #define LUSTRE_LMV_NAME         "lmv"
 #define LUSTRE_CMM_MDC_NAME     "cmm-mdc"
+#define LUSTRE_SLP_NAME         "slp"
 
 /* obd device type names */
  /* FIXME all the references to LUSTRE_MDS_NAME should be swapped with LUSTRE_MDT_NAME */
@@ -752,8 +816,10 @@ struct obd_trans_info {
         int                      oti_numcookies;
 
         /* initial thread handling transaction */
-        int                      oti_thread_id;
+        struct ptlrpc_thread *   oti_thread;
         __u32                    oti_conn_cnt;
+
+        struct obd_uuid         *oti_ost_uuid;
 };
 
 static inline void oti_init(struct obd_trans_info *oti,
@@ -770,7 +836,7 @@ static inline void oti_init(struct obd_trans_info *oti,
 
         if (req->rq_repmsg != NULL)
                 oti->oti_transno = lustre_msg_get_transno(req->rq_repmsg);
-        oti->oti_thread_id = req->rq_svc_thread ? req->rq_svc_thread->t_id : -1;
+        oti->oti_thread = req->rq_svc_thread;
         if (req->rq_reqmsg != NULL)
                 oti->oti_conn_cnt = lustre_msg_get_conn_cnt(req->rq_reqmsg);
 }
@@ -807,6 +873,8 @@ static inline void oti_free_cookies(struct obd_trans_info *oti)
  * Events signalled through obd_notify() upcall-chain.
  */
 enum obd_notify_event {
+        /* Device connect start */
+        OBD_NOTIFY_CONNECT,
         /* Device activated */
         OBD_NOTIFY_ACTIVE,
         /* Device deactivated */
@@ -824,8 +892,9 @@ enum obd_notify_event {
 
 /* bit-mask flags for config events */
 enum config_flags {
-        CONFIG_LOG = 0x1,  /* finished processing config log */
-        CONFIG_SYNC = 0x2  /* mdt synced 1 ost */
+        CONFIG_LOG      = 0x1,  /* finished processing config log */
+        CONFIG_SYNC     = 0x2,  /* mdt synced 1 ost */
+        CONFIG_TARGET   = 0x4   /* one target is added */
 };
 
 /*
@@ -846,14 +915,41 @@ struct target_recovery_data {
         struct completion trd_finishing;
 };
 
-#define OBD_LLOG_GROUP  0
-
 enum filter_groups {
+        FILTER_GROUP_MDS0 = 0,
         FILTER_GROUP_LLOG = 1,
-        FILTER_GROUP_ECHO,
-        FILTER_GROUP_MDS0
+        FILTER_GROUP_ECHO = 2 ,
+        FILTER_GROUP_MDS1_N_BASE = 3
 };
 
+static inline __u64 obdo_mdsno(struct obdo *oa)
+{
+        if (oa->o_gr)
+                return oa->o_gr - FILTER_GROUP_MDS1_N_BASE;
+        return 0;
+}
+
+static inline int mdt_to_obd_objgrp(int mdtid)
+{
+        if (mdtid)
+                return FILTER_GROUP_MDS1_N_BASE + mdtid;
+        return 0;
+}
+
+/**
+  * In HEAD for CMD, the object is created in group number which is 3>=
+  * or indexing starts from 3. To test this assertions are added to disallow
+  * group 0. But to run 2.0 mds server on 1.8.x disk format (i.e. interop_mode)
+  * object in group 0 needs to be allowed.
+  * So for interop mode following changes needs to be done:
+  * 1. No need to assert on group 0 or allow group 0
+  * 2. The group number indexing starts from 0 instead of 3
+  */
+
+#define CHECK_MDS_GROUP(group)          (group == FILTER_GROUP_MDS0 || \
+                                         group > FILTER_GROUP_MDS1_N_BASE)
+#define LASSERT_MDS_GROUP(group)        LASSERT(CHECK_MDS_GROUP(group))
+
 struct obd_llog_group {
         struct list_head   olg_list;
         int                olg_group;
@@ -862,11 +958,13 @@ struct obd_llog_group {
         spinlock_t         olg_lock;
         struct obd_export *olg_exp;
         int                olg_initializing;
+        struct semaphore   olg_cat_processing;
 };
 
 /* corresponds to one of the obd's */
 #define MAX_OBD_NAME 128
 #define OBD_DEVICE_MAGIC        0XAB5CD6EF
+#define OBD_DEV_BY_DEVNAME      0xffffd0de
 struct obd_device {
         struct obd_type        *obd_type;
         __u32                   obd_magic;
@@ -895,11 +993,11 @@ struct obd_device {
                       obd_inactive:1;      /* device active/inactive
                                            * (for /proc/status only!!) */
         /* uuid-export hash body */
-        struct lustre_class_hash_body *obd_uuid_hash_body;
+        struct lustre_hash     *obd_uuid_hash;
         /* nid-export hash body */
-        struct lustre_class_hash_body *obd_nid_hash_body;
+        struct lustre_hash     *obd_nid_hash;
         /* nid stats body */
-        struct lustre_class_hash_body *obd_nid_stats_hash_body;
+        struct lustre_hash     *obd_nid_stats_hash;
         struct list_head        obd_nid_stats;
         atomic_t                obd_refcount;
         cfs_waitq_t             obd_refcount_waitq;
@@ -928,7 +1026,7 @@ struct obd_device {
         /* XXX encapsulate all this recovery data into one struct */
         svc_handler_t                    obd_recovery_handler;
         pid_t                            obd_processing_task;
-        
+
         int                              obd_max_recoverable_clients;
         int                              obd_connected_clients;
         int                              obd_recoverable_clients;
@@ -944,7 +1042,7 @@ struct obd_device {
         time_t                           obd_recovery_end; /* seconds, for lprocfs_status */
         time_t                           obd_recovery_max_time; /* seconds, bz13079 */
         int                              obd_recovery_timeout;
-        
+
         /* new recovery stuff from CMD2 */
         struct target_recovery_data      obd_recovery_data;
         int                              obd_replayed_locks;
@@ -981,60 +1079,60 @@ struct obd_device {
         atomic_t               obd_evict_inprogress;
         cfs_waitq_t            obd_evict_inprogress_waitq;
 
-        /** 
-         * Ldlm pool part. Save last calculated SLV and Limit. 
+        /**
+         * Ldlm pool part. Save last calculated SLV and Limit.
          */
         rwlock_t               obd_pool_lock;
         int                    obd_pool_limit;
         __u64                  obd_pool_slv;
-};
 
-#define OBD_OPT_FORCE           0x0001
-#define OBD_OPT_FAILOVER        0x0002
+        /**
+         * A list of outstanding class_incref()'s against this obd. For
+         * debugging.
+         */
+        struct lu_ref          obd_reference;
+};
 
 #define OBD_LLOG_FL_SENDNOW     0x0001
 
 enum obd_cleanup_stage {
 /* Special case hack for MDS LOVs */
         OBD_CLEANUP_EARLY,
-/* Precleanup stage 1, we must make sure all exports (other than the
-   self-export) get destroyed. */
+/* can be directly mapped to .ldto_device_fini() */
         OBD_CLEANUP_EXPORTS,
-/* Precleanup stage 2,  do other type-specific cleanup requiring the
-   self-export. */
-        OBD_CLEANUP_SELF_EXP,
-/* FIXME we should eliminate the "precleanup" function and make them stages
-   of the "cleanup" function. */
-        OBD_CLEANUP_OBD,
 };
 
 /* get/set_info keys */
-#define KEY_READ_ONLY           "read-only"
-#define KEY_MDS_CONN            "mds_conn"
-#define KEY_NEXT_ID             "next_id"
-#define KEY_LOVDESC             "lovdesc"
-#define KEY_INIT_RECOV          "initial_recov"
-#define KEY_INIT_RECOV_BACKUP   "init_recov_bk"
-#define KEY_FLUSH_CTX           "flush_ctx"
+#define KEY_BLOCKSIZE_BITS      "blocksize_bits"
+#define KEY_BLOCKSIZE           "blocksize"
 #define KEY_CAPA_KEY            "capa_key"
+#define KEY_CHANGELOG_CLEAR     "changelog_clear"
+#define KEY_CHECKSUM            "checksum"
+#define KEY_CLEAR_FS            "clear_fs"
 #define KEY_CONN_DATA           "conn_data"
-#define KEY_MAX_EASIZE          "max_easize"
-#define KEY_REVIMP_UPD          "revimp_update"
-#define KEY_LOV_IDX             "lov_idx"
+#define KEY_EVICT_BY_NID        "evict_by_nid"
+#define KEY_FIEMAP              "fiemap"
+#define KEY_FLUSH_CTX           "flush_ctx"
+#define KEY_INIT_RECOV_BACKUP   "init_recov_bk"
+#define KEY_INIT_RECOV          "initial_recov"
 #define KEY_LAST_ID             "last_id"
-#define KEY_READONLY            "read-only"
 #define KEY_LOCK_TO_STRIPE      "lock_to_stripe"
-#define KEY_CHECKSUM            "checksum"
-#define KEY_UNLINKED            "unlinked"
-#define KEY_EVICT_BY_NID        "evict_by_nid"
+#define KEY_LOVDESC             "lovdesc"
+#define KEY_LOV_IDX             "lov_idx"
+#define KEY_MAX_EASIZE          "max_easize"
+#define KEY_MDS_CONN            "mds_conn"
+#define KEY_MGSSEC              "mgssec"
+#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_CLEAR_FS            "clear_fs"
-#define KEY_BLOCKSIZE           "blocksize"
-#define KEY_BLOCKSIZE_BITS      "blocksize_bits"
+#define KEY_SPTLRPC_CONF        "sptlrpc_conf"
+#define KEY_UNLINKED            "unlinked"
 /* XXX unused ?*/
 #define KEY_INTERMDS            "inter_mds"
 #define KEY_ASYNC               "async"
+#define KEY_GRANT_SHRINK        "grant_shrink"
 
 struct lu_context;
 
@@ -1045,7 +1143,7 @@ static inline int it_to_lock_mode(struct lookup_intent *it)
                 return LCK_CW;
         else if (it->it_op & (IT_READDIR | IT_GETATTR | IT_OPEN | IT_LOOKUP))
                 return LCK_CR;
+
         LASSERTF(0, "Invalid it_op: %d\n", it->it_op);
         return -EINVAL;
 }
@@ -1066,7 +1164,7 @@ struct md_op_data {
         __u32                   op_suppgids[2];
         __u32                   op_fsuid;
         __u32                   op_fsgid;
-        __u32                   op_cap;
+        cfs_cap_t               op_cap;
         void                   *op_data;
 
         /* iattr fields and blocks. */
@@ -1114,7 +1212,7 @@ struct obd_ops {
         int (*o_iocontrol)(unsigned int cmd, struct obd_export *exp, int len,
                            void *karg, void *uarg);
         int (*o_get_info)(struct obd_export *, __u32 keylen, void *key,
-                          __u32 *vallen, void *val);
+                          __u32 *vallen, void *val, struct lov_stripe_md *lsm);
         int (*o_set_info_async)(struct obd_export *, __u32 keylen, void *key,
                                 __u32 vallen, void *val,
                                 struct ptlrpc_request_set *set);
@@ -1135,13 +1233,14 @@ struct obd_ops {
          * granted by the target, which are guaranteed to be a subset of flags
          * asked for. If @ocd == NULL, use default parameters. */
         int (*o_connect)(const struct lu_env *env,
-                         struct lustre_handle *conn, struct obd_device *src,
+                         struct obd_export **exp, struct obd_device *src,
                          struct obd_uuid *cluuid, struct obd_connect_data *ocd,
                          void *localdata);
         int (*o_reconnect)(const struct lu_env *env,
                            struct obd_export *exp, struct obd_device *src,
                            struct obd_uuid *cluuid,
-                           struct obd_connect_data *ocd);
+                           struct obd_connect_data *ocd,
+                           void *localdata);
         int (*o_disconnect)(struct obd_export *exp);
 
         /* Initialize/finalize fids infrastructure. */
@@ -1152,7 +1251,7 @@ struct obd_ops {
         int (*o_fid_alloc)(struct obd_export *exp, struct lu_fid *fid,
                            struct md_op_data *op_data);
 
-        /* 
+        /*
          * Object with @fid is getting deleted, we may want to do something
          * about this.
          */
@@ -1176,7 +1275,7 @@ struct obd_ops {
                         struct lov_stripe_md **ea, struct obd_trans_info *oti);
         int (*o_destroy)(struct obd_export *exp, struct obdo *oa,
                          struct lov_stripe_md *ea, struct obd_trans_info *oti,
-                         struct obd_export *md_exp);
+                         struct obd_export *md_exp, void *capa);
         int (*o_setattr)(struct obd_export *exp, struct obd_info *oinfo,
                          struct obd_trans_info *oti);
         int (*o_setattr_async)(struct obd_export *exp, struct obd_info *oinfo,
@@ -1188,47 +1287,6 @@ struct obd_ops {
         int (*o_brw)(int rw, struct obd_export *exp, struct obd_info *oinfo,
                      obd_count oa_bufs, struct brw_page *pgarr,
                      struct obd_trans_info *oti);
-        int (*o_brw_async)(int rw, struct obd_export *exp,
-                           struct obd_info *oinfo, obd_count oa_bufs,
-                           struct brw_page *pgarr, struct obd_trans_info *oti,
-                           struct ptlrpc_request_set *);
-        int (*o_prep_async_page)(struct obd_export *exp,
-                                 struct lov_stripe_md *lsm,
-                                 struct lov_oinfo *loi,
-                                 cfs_page_t *page, obd_off offset,
-                                 struct obd_async_page_ops *ops, void *data,
-                                 void **res, int nocache,
-                                 struct lustre_handle *lockh);
-        int (*o_reget_short_lock)(struct obd_export *exp,
-                                  struct lov_stripe_md *lsm,
-                                  void **res, int rw,
-                                  obd_off start, obd_off end,
-                                  void **cookie);
-        int (*o_release_short_lock)(struct obd_export *exp,
-                                    struct lov_stripe_md *lsm, obd_off end,
-                                    void *cookie, int rw);
-        int (*o_queue_async_io)(struct obd_export *exp,
-                                struct lov_stripe_md *lsm,
-                                struct lov_oinfo *loi, void *cookie,
-                                int cmd, obd_off off, int count,
-                                obd_flag brw_flags, obd_flag async_flags);
-        int (*o_queue_group_io)(struct obd_export *exp,
-                                struct lov_stripe_md *lsm,
-                                struct lov_oinfo *loi,
-                                struct obd_io_group *oig,
-                                void *cookie, int cmd, obd_off off, int count,
-                                obd_flag brw_flags, obd_flag async_flags);
-        int (*o_trigger_group_io)(struct obd_export *exp,
-                                  struct lov_stripe_md *lsm,
-                                  struct lov_oinfo *loi,
-                                  struct obd_io_group *oig);
-        int (*o_set_async_flags)(struct obd_export *exp,
-                                struct lov_stripe_md *lsm,
-                                struct lov_oinfo *loi, void *cookie,
-                                obd_flag async_flags);
-        int (*o_teardown_async_page)(struct obd_export *exp,
-                                     struct lov_stripe_md *lsm,
-                                     struct lov_oinfo *loi, void *cookie);
         int (*o_merge_lvb)(struct obd_export *exp, struct lov_stripe_md *lsm,
                            struct ost_lvb *lvb, int kms_only);
         int (*o_adjust_kms)(struct obd_export *exp, struct lov_stripe_md *lsm,
@@ -1250,27 +1308,24 @@ struct obd_ops {
                          obd_id *startid, obd_gr group, void *data);
         int (*o_preprw)(int cmd, struct obd_export *exp, struct obdo *oa,
                         int objcount, struct obd_ioobj *obj,
-                        int niocount, struct niobuf_remote *remote,
-                        struct niobuf_local *local, struct obd_trans_info *oti,
+                        struct niobuf_remote *remote, int *nr_pages,
+                        struct niobuf_local *local,
+                        struct obd_trans_info *oti,
                         struct lustre_capa *capa);
         int (*o_commitrw)(int cmd, struct obd_export *exp, struct obdo *oa,
                           int objcount, struct obd_ioobj *obj,
-                          int niocount, struct niobuf_local *local,
+                          struct niobuf_remote *remote, int pages,
+                          struct niobuf_local *local,
                           struct obd_trans_info *oti, int rc);
         int (*o_enqueue)(struct obd_export *, struct obd_info *oinfo,
                          struct ldlm_enqueue_info *einfo,
                          struct ptlrpc_request_set *rqset);
-        int (*o_match)(struct obd_export *, struct lov_stripe_md *, __u32 type,
-                       ldlm_policy_data_t *, __u32 mode, int *flags, void *data,
-                       struct lustre_handle *lockh);
         int (*o_change_cbdata)(struct obd_export *, struct lov_stripe_md *,
                                ldlm_iterator_t it, void *data);
         int (*o_cancel)(struct obd_export *, struct lov_stripe_md *md,
                         __u32 mode, struct lustre_handle *);
         int (*o_cancel_unused)(struct obd_export *, struct lov_stripe_md *,
                                int flags, void *opaque);
-        int (*o_join_lru)(struct obd_export *, struct lov_stripe_md *,
-                         int join);
         int (*o_init_export)(struct obd_export *exp);
         int (*o_destroy_export)(struct obd_export *exp);
         int (*o_extent_calc)(struct obd_export *, struct lov_stripe_md *,
@@ -1295,38 +1350,33 @@ struct obd_ops {
                         enum obd_notify_event ev, void *data);
 
         int (*o_health_check)(struct obd_device *);
+        struct obd_uuid *(*o_get_uuid) (struct obd_export *exp);
 
         /* quota methods */
-        int (*o_quotacheck)(struct obd_export *, struct obd_quotactl *);
-        int (*o_quotactl)(struct obd_export *, struct obd_quotactl *);
+        int (*o_quotacheck)(struct obd_device *, struct obd_export *,
+                            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);
 
-        int (*o_ping)(struct obd_export *exp);
 
-        int (*o_register_page_removal_cb)(struct obd_export *exp,
-                                          obd_page_removal_cb_t cb,
-                                          obd_pin_extent_cb pin_cb);
-        int (*o_unregister_page_removal_cb)(struct obd_export *exp,
-                                            obd_page_removal_cb_t cb);
-        int (*o_register_lock_cancel_cb)(struct obd_export *exp,
-                                       obd_lock_cancel_cb cb);
-        int (*o_unregister_lock_cancel_cb)(struct obd_export *exp,
-                                         obd_lock_cancel_cb cb);
+        int (*o_ping)(struct obd_export *exp);
 
+        /* pools methods */
+        int (*o_pool_new)(struct obd_device *obd, char *poolname);
+        int (*o_pool_del)(struct obd_device *obd, char *poolname);
+        int (*o_pool_add)(struct obd_device *obd, char *poolname,
+                          char *ostname);
+        int (*o_pool_rem)(struct obd_device *obd, char *poolname,
+                          char *ostname);
         /*
          * NOTE: If adding ops, add another LPROCFS_OBD_OP_INIT() line
          * to lprocfs_alloc_obd_stats() in obdclass/lprocfs_status.c.
          * Also, add a wrapper function in include/linux/obd_class.h. */
 };
 
-/* TODO: lmv_stripe_md should contain mds capabilities for all slave fids */
-struct lmv_stripe_md {
-        __u32         mea_magic;
-        __u32         mea_count;
-        __u32         mea_master;
-        __u32         mea_padding;
-        struct lu_fid mea_ids[0];
-};
-
 enum {
         LUSTRE_OPC_MKDIR    = (1 << 0),
         LUSTRE_OPC_SYMLINK  = (1 << 1),
@@ -1342,7 +1392,7 @@ enum {
 
 #define MAX_HASH_SIZE_32         0x7fffffffUL
 #define MAX_HASH_SIZE            0x7fffffffffffffffULL
-#define MAX_HASH_HIGHEST_BIT     0x1000000000000000
+#define MAX_HASH_HIGHEST_BIT     0x1000000000000000ULL
 
 struct lustre_md {
         struct mdt_body         *body;
@@ -1371,13 +1421,14 @@ struct md_ops {
         int (*m_close)(struct obd_export *, struct md_op_data *,
                        struct md_open_data *, struct ptlrpc_request **);
         int (*m_create)(struct obd_export *, struct md_op_data *,
-                        const void *, int, int, __u32, __u32, __u32,
+                        const void *, int, int, __u32, __u32, cfs_cap_t,
                         __u64, struct ptlrpc_request **);
         int (*m_done_writing)(struct obd_export *, struct md_op_data  *,
                               struct md_open_data *);
         int (*m_enqueue)(struct obd_export *, struct ldlm_enqueue_info *,
                          struct lookup_intent *, struct md_op_data *,
-                         struct lustre_handle *, void *, int, int);
+                         struct lustre_handle *, void *, int,
+                         struct ptlrpc_request **, int);
         int (*m_getattr)(struct obd_export *, const struct lu_fid *,
                          struct obd_capa *, obd_valid, int,
                          struct ptlrpc_request **);
@@ -1443,6 +1494,8 @@ struct md_ops {
                                void *opaque);
         int (*m_renew_capa)(struct obd_export *, struct obd_capa *oc,
                             renew_capa_cb_t cb);
+        int (*m_unpack_capa)(struct obd_export *, struct ptlrpc_request *,
+                             const struct req_msg_field *, struct obd_capa **);
 
         int (*m_get_remote_perm)(struct obd_export *, const struct lu_fid *,
                                  struct obd_capa *, __u32,
@@ -1481,15 +1534,18 @@ struct lsm_operations {
                              struct lov_mds_md *lmm);
 };
 
-extern struct lsm_operations lsm_plain_ops;
-extern struct lsm_operations lsm_join_ops;
-static inline struct lsm_operations *lsm_op_find(int magic)
+extern const struct lsm_operations lsm_v1_ops;
+extern const struct lsm_operations lsm_join_ops;
+extern const struct lsm_operations lsm_v3_ops;
+static inline const struct lsm_operations *lsm_op_find(int magic)
 {
         switch(magic) {
-        case LOV_MAGIC:
-               return &lsm_plain_ops;
+        case LOV_MAGIC_V1:
+               return &lsm_v1_ops;
         case LOV_MAGIC_JOIN:
                return &lsm_join_ops;
+        case LOV_MAGIC_V3:
+               return &lsm_v3_ops;
         default:
                CERROR("Cannot recognize lsm_magic %d\n", magic);
                return NULL;
@@ -1510,11 +1566,14 @@ static inline void obd_transno_commit_cb(struct obd_device *obd, __u64 transno,
                        obd->obd_name, transno, error);
                 return;
         }
-        CDEBUG(D_HA, "%s: transno "LPU64" committed\n",
-               obd->obd_name, transno);
         if (transno > obd->obd_last_committed) {
+                CDEBUG(D_HA, "%s: transno "LPD64" committed\n",
+                       obd->obd_name, transno);
                 obd->obd_last_committed = transno;
                 ptlrpc_commit_replies (obd);
+        } else {
+                CDEBUG(D_INFO, "%s: transno "LPD64" committed\n",
+                       obd->obd_name, transno);
         }
 }
 
@@ -1527,11 +1586,12 @@ static inline void init_obd_quota_ops(quota_interface_t *interface,
         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 __u64 oinfo_mdsno(struct obd_info *oinfo)
 {
-        return oinfo->oi_oa->o_gr - FILTER_GROUP_MDS0;
+        return obdo_mdsno(oinfo->oi_oa);
 }
 
 static inline struct lustre_capa *oinfo_capa(struct obd_info *oinfo)