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[fs/lustre-release.git] / lustre / include / lustre_export.h
index 39df979..387bf9e 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 __EXPORT_H
 
 /* Data stored per client in the last_rcvd file.  In le32 order. */
 struct mds_client_data;
+struct mdt_client_data;
+struct mds_idmap_table;
+struct mdt_idmap_table;
 
-struct mds_export_data {
+struct mdt_export_data {
         struct list_head        med_open_head;
         spinlock_t              med_open_lock; /* lock med_open_head, mfd_list*/
-        struct mds_client_data *med_mcd;
+        struct semaphore        med_lcd_lock;
+        struct lsd_client_data *med_lcd;
         __u64                   med_ibits_known;
         loff_t                  med_lr_off;
         int                     med_lr_idx;
+        unsigned int            med_rmtclient:1; /* remote client? */
+        struct semaphore           med_idmap_sem;
+        struct lustre_idmap_table *med_idmap;
 };
 
 struct osc_creator {
@@ -28,13 +67,17 @@ struct osc_creator {
         obd_id                  oscc_last_id;//last available pre-created object
         obd_id                  oscc_next_id;// what object id to give out next
         int                     oscc_grow_count;
+        /**
+         * Limit oscc_grow_count value, can be changed via proc fs
+         */
+        int                     oscc_max_grow_count;
         struct obdo             oscc_oa;
         int                     oscc_flags;
         cfs_waitq_t             oscc_waitq; /* creating procs wait on this */
 };
 
 struct ldlm_export_data {
-        struct list_head       led_held_locks; /* protected by led_lock below */
+        struct list_head       led_held_locks; /* protected by led_lock */
         spinlock_t             led_lock;
 };
 
@@ -43,10 +86,9 @@ struct ec_export_data { /* echo client */
 };
 
 /* In-memory access to client data from OST struct */
-struct filter_client_data;
 struct filter_export_data {
         spinlock_t                 fed_lock;      /* protects fed_open_head */
-        struct filter_client_data *fed_fcd;
+        struct lsd_client_data    *fed_lcd;
         loff_t                     fed_lr_off;
         int                        fed_lr_idx;
         long                       fed_dirty;    /* in bytes */
@@ -54,9 +96,21 @@ struct filter_export_data {
         struct list_head           fed_mod_list; /* files being modified */
         int                        fed_mod_count;/* items in fed_writing list */
         long                       fed_pending;  /* bytes just being written */
+        __u32                      fed_group;
         struct brw_stats           fed_brw_stats;
 };
 
+typedef struct nid_stat {
+        lnet_nid_t               nid;
+        struct hlist_node        nid_hash;
+        struct list_head         nid_list;
+        struct obd_device       *nid_obd;
+        struct proc_dir_entry   *nid_proc;
+        struct lprocfs_stats    *nid_stats;
+        struct brw_stats        *nid_brw_stats;
+        int                      nid_exp_ref_count;
+}nid_stat_t;
+
 struct obd_export {
         struct portals_handle     exp_handle;
         atomic_t                  exp_refcount;
@@ -69,36 +123,67 @@ struct obd_export {
         struct list_head          exp_obd_chain_timed;
         struct obd_device        *exp_obd;
         struct obd_import        *exp_imp_reverse; /* to make RPCs backwards */
-        struct proc_dir_entry    *exp_proc;
-        struct lprocfs_stats     *exp_ops_stats;
+        struct nid_stat          *exp_nid_stats;
+        struct lprocfs_stats     *exp_md_stats;
         struct lprocfs_stats     *exp_ldlm_stats;
         struct ptlrpc_connection *exp_connection;
         __u32                     exp_conn_cnt;
         struct ldlm_export_data   exp_ldlm_data;
         struct list_head          exp_outstanding_replies;
         time_t                    exp_last_request_time;
+        struct list_head          exp_req_replay_queue;
         spinlock_t                exp_lock; /* protects flags int below */
         /* ^ protects exp_outstanding_replies too */
         __u64                     exp_connect_flags;
         int                       exp_flags;
-        unsigned int              exp_failed:1,
+        unsigned long             exp_failed:1,
+                                  exp_in_recovery:1,
                                   exp_disconnected:1,
                                   exp_connecting:1,
-                                  exp_replay_needed:1,
-                                  exp_need_sync:1, /* needs sync from connect */
+                                  exp_req_replay_needed:1,
+                                  exp_lock_replay_needed:1,
+                                  exp_need_sync:1,
+                                  exp_flvr_changed:1,
+                                  exp_flvr_adapt:1,
                                   exp_libclient:1; /* liblustre client? */
+        /* also protected by exp_lock */
+        enum lustre_sec_part      exp_sp_peer;
+        struct sptlrpc_flavor     exp_flvr;             /* current */
+        struct sptlrpc_flavor     exp_flvr_old[2];      /* about-to-expire */
+        cfs_time_t                exp_flvr_expire[2];   /* seconds */
+
         union {
-                struct mds_export_data    eu_mds_data;
+                struct mdt_export_data    eu_mdt_data;
                 struct filter_export_data eu_filter_data;
                 struct ec_export_data     eu_ec_data;
         } u;
 };
 
-#define exp_mds_data    u.eu_mds_data
-#define exp_lov_data    u.eu_lov_data
+#define exp_mdt_data    u.eu_mdt_data
 #define exp_filter_data u.eu_filter_data
 #define exp_ec_data     u.eu_ec_data
 
+static inline int exp_connect_cancelset(struct obd_export *exp)
+{
+        LASSERT(exp != NULL);
+        return !!(exp->exp_connect_flags & OBD_CONNECT_CANCELSET);
+}
+
+static inline int exp_connect_lru_resize(struct obd_export *exp)
+{
+        LASSERT(exp != NULL);
+        return !!(exp->exp_connect_flags & OBD_CONNECT_LRU_RESIZE);
+}
+
+static inline int imp_connect_lru_resize(struct obd_import *imp)
+{
+        struct obd_connect_data *ocd;
+
+        LASSERT(imp != NULL);
+        ocd = &imp->imp_connect_data;
+        return !!(ocd->ocd_connect_flags & OBD_CONNECT_LRU_RESIZE);
+}
+
 extern struct obd_export *class_conn2export(struct lustre_handle *conn);
 extern struct obd_device *class_conn2obd(struct lustre_handle *conn);