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Cleanup Compiler Warnings(Patch by Robert Read)
[fs/lustre-release.git] / lustre / include / obd.h
index c9041ee..242d80d 100644 (file)
@@ -52,7 +52,7 @@ struct loi_oap_pages {
 struct osc_async_rc {
         int     ar_rc;
         int     ar_force_sync;
-        int     ar_min_xid;
+        __u64   ar_min_xid;
 };
 
 struct lov_oinfo {                 /* per-stripe data structure */
@@ -105,7 +105,7 @@ struct lov_array_info {
 
 struct lov_stripe_md {
         spinlock_t       lsm_lock;
-        void            *lsm_lock_owner; /* debugging */
+        pid_t            lsm_lock_owner; /* debugging */
 
         struct {
                 /* Public members. */
@@ -142,8 +142,11 @@ struct obd_info {
          * OSC. (e.g. lov_prep_enqueue_set initialises extent of the policy,
          * and osc_enqueue passes it into ldlm_lock_match & ldlm_cli_enqueue. */
         ldlm_policy_data_t      oi_policy;
-        /* Flags used while lock handling. The flags obtained on the enqueue
-         * request are set here, therefore they are request specific. */
+        /* Flags used for set request specific flags:
+           - while lock handling, the flags obtained on the enqueue
+           request are set here.
+           - while stats, the flags used for control delay/resend.
+         */
         int                     oi_flags;
         /* Lock handle specific for every OSC lock. */
         struct lustre_handle   *oi_lockh;
@@ -252,6 +255,11 @@ struct obd_device_target {
         struct lustre_quota_ctxt  obt_qctxt;
 };
 
+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,
@@ -376,8 +384,9 @@ struct filter_obd {
 
 struct mdc_rpc_lock;
 struct obd_import;
+struct lustre_cache;
 struct client_obd {
-        struct semaphore         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;
@@ -453,9 +462,13 @@ struct client_obd {
         atomic_t                 cl_mgc_refcount;
         struct obd_export       *cl_mgc_mgsexp;
 
-        /* Flags section */
-        unsigned long            cl_checksum:1; /* debug checksums */
-
+        /* checksumming for data sent over the network */
+        unsigned int             cl_checksum:1; /* 0 = disabled, 1 = enabled */
+        /* supported checksum types that are worked out at connect time */
+        __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;
 
@@ -466,6 +479,10 @@ 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)
 
@@ -539,6 +556,7 @@ struct mds_obd {
 
         /* for capability keys update */
         struct lustre_capa_key          *mds_capa_keys;
+        struct rw_semaphore             mds_notify_lock;
 };
 
 /* lov objid */
@@ -640,6 +658,9 @@ struct lov_obd {
         __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;
 };
 
 struct lmv_tgt_desc {
@@ -741,17 +762,18 @@ static inline void oti_init(struct obd_trans_info *oti,
 {
         if (oti == NULL)
                 return;
-        memset(oti, 0, sizeof *oti);
+        memset(oti, 0, sizeof(*oti));
 
         if (req == NULL)
                 return;
 
         oti->oti_xid = req->rq_xid;
 
-        if (req->rq_repmsg && req->rq_reqmsg != 0)
+        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_conn_cnt = lustre_msg_get_conn_cnt(req->rq_reqmsg);
+        if (req->rq_reqmsg != NULL)
+                oti->oti_conn_cnt = lustre_msg_get_conn_cnt(req->rq_reqmsg);
 }
 
 static inline void oti_alloc_cookies(struct obd_trans_info *oti,int num_cookies)
@@ -840,6 +862,7 @@ struct obd_llog_group {
         cfs_waitq_t        olg_waitq;
         spinlock_t         olg_lock;
         struct obd_export *olg_exp;
+        int                olg_initializing;
 };
 
 /* corresponds to one of the obd's */
@@ -875,11 +898,15 @@ struct obd_device {
         /* uuid-export hash body */
         struct lustre_class_hash_body *obd_uuid_hash_body;
         /* nid-export hash body */
-        struct lustre_class_hash_body *obd_nid_hash_body; 
-        atomic_t obd_refcount;
+        struct lustre_class_hash_body *obd_nid_hash_body;
+        /* nid stats body */
+        struct lustre_class_hash_body *obd_nid_stats_hash_body;
+        struct list_head        obd_nid_stats;
+        atomic_t                obd_refcount;
         cfs_waitq_t             obd_refcount_waitq;
         struct list_head        obd_exports;
         int                     obd_num_exports;
+        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 */
@@ -915,8 +942,9 @@ struct obd_device {
         spinlock_t                       obd_uncommitted_replies_lock;
         cfs_timer_t                      obd_recovery_timer;
         time_t                           obd_recovery_start; /* seconds */
-        time_t                           obd_recovery_end; /* seconds */
+        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;
@@ -948,12 +976,18 @@ struct obd_device {
         struct lprocfs_stats  *md_stats;
 
         cfs_proc_dir_entry_t  *obd_proc_entry;
-        cfs_proc_dir_entry_t  *obd_proc_exports;
+        cfs_proc_dir_entry_t  *obd_proc_exports_entry;
         cfs_proc_dir_entry_t  *obd_svc_procroot;
         struct lprocfs_stats  *obd_svc_stats;
-        struct semaphore       obd_proc_exp_sem;
         atomic_t               obd_evict_inprogress;
         cfs_waitq_t            obd_evict_inprogress_waitq;
+
+        /** 
+         * 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
@@ -964,15 +998,8 @@ struct obd_device {
 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 */
@@ -989,12 +1016,34 @@ enum obd_cleanup_stage {
 #define KEY_REVIMP_UPD          "revimp_update"
 #define KEY_LOV_IDX             "lov_idx"
 #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_REGISTER_TARGET     "register_target"
+#define KEY_SET_FS              "set_fs"
+#define KEY_CLEAR_FS            "clear_fs"
 #define KEY_BLOCKSIZE           "blocksize"
 #define KEY_BLOCKSIZE_BITS      "blocksize_bits"
+/* XXX unused ?*/
+#define KEY_INTERMDS            "inter_mds"
+#define KEY_ASYNC               "async"
 
 struct lu_context;
 
+static inline int it_to_lock_mode(struct lookup_intent *it)
+{
+        /* CREAT needs to be tested before open (both could be set) */
+        if (it->it_op & IT_CREAT)
+                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;
+}
+
 struct md_op_data {
         struct lu_fid           op_fid1; /* operation fid1 (usualy parent) */
         struct lu_fid           op_fid2; /* operation fid2 (usualy child) */
@@ -1038,6 +1087,22 @@ struct md_op_data {
         __u32                   op_opc;
 };
 
+struct md_enqueue_info;
+/* metadata stat-ahead */
+typedef int (* md_enqueue_cb_t)(struct ptlrpc_request *req,
+                                struct md_enqueue_info *minfo,
+                                int rc);
+
+struct md_enqueue_info {
+        struct md_op_data       mi_data;
+        struct lookup_intent    mi_it;
+        struct lustre_handle    mi_lockh;
+        struct dentry          *mi_dentry;
+        md_enqueue_cb_t         mi_cb;
+        unsigned int            mi_generation;
+        void                   *mi_cbdata;
+};
+
 struct obd_ops {
         struct module *o_owner;
         int (*o_iocontrol)(unsigned int cmd, struct obd_export *exp, int len,
@@ -1065,7 +1130,8 @@ struct obd_ops {
          * 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_uuid *cluuid, struct obd_connect_data *ocd);
+                         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,
@@ -1087,7 +1153,7 @@ struct obd_ops {
         int (*o_fid_delete)(struct obd_export *exp, const struct lu_fid *fid);
 
         int (*o_statfs)(struct obd_device *obd, struct obd_statfs *osfs,
-                        __u64 max_age);
+                        __u64 max_age, __u32 flags);
         int (*o_statfs_async)(struct obd_device *obd, struct obd_info *oinfo,
                               __u64 max_age, struct ptlrpc_request_set *set);
         int (*o_packmd)(struct obd_export *exp, struct lov_mds_md **disk_tgt,
@@ -1125,7 +1191,16 @@ struct obd_ops {
                                  struct lov_oinfo *loi,
                                  cfs_page_t *page, obd_off offset,
                                  struct obd_async_page_ops *ops, void *data,
-                                 void **res);
+                                 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,
@@ -1196,7 +1271,7 @@ struct obd_ops {
                              int cmd, obd_off *);
 
         /* llog related obd_methods */
-        int (*o_llog_init)(struct obd_device *obd, int group,
+        int (*o_llog_init)(struct obd_device *obd, struct obd_llog_group *grp,
                            struct obd_device *disk_obd, int count,
                            struct llog_catid *logid, struct obd_uuid *uuid);
         int (*o_llog_finish)(struct obd_device *obd, int count);
@@ -1220,6 +1295,17 @@ struct obd_ops {
         int (*o_quotactl)(struct obd_export *, struct obd_quotactl *);
 
         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);
+
         /*
          * NOTE: If adding ops, add another LPROCFS_OBD_OP_INIT() line
          * to lprocfs_alloc_obd_stats() in obdclass/lprocfs_status.c.
@@ -1248,8 +1334,9 @@ enum {
 #define MEA_MAGIC_ALL_CHARS      0xb222a11c
 #define MEA_MAGIC_HASH_SEGMENT   0xb222a11b
 
-#define MAX_HASH_SIZE            0x7fffffffUL
-#define MAX_HASH_HIGHEST_BIT     0x10000000
+#define MAX_HASH_SIZE_32         0x7fffffffUL
+#define MAX_HASH_SIZE            0x7fffffffffffffffULL
+#define MAX_HASH_HIGHEST_BIT     0x1000000000000000
 
 struct lustre_md {
         struct mdt_body         *body;
@@ -1355,6 +1442,14 @@ struct md_ops {
                                  struct obd_capa *, __u32,
                                  struct ptlrpc_request **);
 
+        int (*m_intent_getattr_async)(struct obd_export *,
+                                      struct md_enqueue_info *,
+                                      struct ldlm_enqueue_info *);
+
+        int (*m_revalidate_lock)(struct obd_export *,
+                                 struct lookup_intent *,
+                                 struct lu_fid *);
+
         /*
          * NOTE: If adding ops, add another LPROCFS_MD_OP_INIT() line to
          * lprocfs_alloc_md_stats() in obdclass/lprocfs_status.c. Also, add a
@@ -1405,15 +1500,18 @@ static inline void obd_transno_commit_cb(struct obd_device *obd, __u64 transno,
                                          int error)
 {
         if (error) {
-                CERROR("%s: transno "LPD64" commit error: %d\n",
+                CERROR("%s: transno "LPU64" commit error: %d\n",
                        obd->obd_name, transno, error);
                 return;
         }
-        CDEBUG(D_HA, "%s: transno "LPD64" 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);
         }
 }