LU-6401 headers: Create single .h for lu_seq_range

[fs/lustre-release.git] / lustre / include / lustre_fld.h

diff --git a/lustre/include/lustre_fld.h b/lustre/include/lustre_fld.h
index c5497ee..bc8eb89 100644 (file)
--- a/lustre/include/lustre_fld.h
+++ b/lustre/include/lustre_fld.h
@@ -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, 2014, Intel Corporation.
  */
 /*
  * This file is part of Lustre, http://www.lustre.org/
@@ -43,18 +43,17 @@
  */
 
 #include <lustre/lustre_idl.h>
-#include <lustre_mdt.h>
-#include <dt_object.h>
-
 #include <libcfs/libcfs.h>
+#include <lustre/seq_range.h>
 
+struct lu_env;
 struct lu_client_fld;
 struct lu_server_fld;
 struct lu_fld_hash;
 struct fld_cache;
-
-extern const struct dt_index_features fld_index_features;
-extern const char fld_index_name[];
+struct thandle;
+struct dt_device;
+struct dt_object;
 
 /*
  * FLD (Fid Location Database) interface.
@@ -64,18 +63,17 @@ enum {
         LUSTRE_CLI_FLD_HASH_RRB
 };
 
-
 struct lu_fld_target {
-        cfs_list_t               ft_chain;
-        struct obd_export       *ft_exp;
-        struct lu_server_fld    *ft_srv;
-        __u64                    ft_idx;
+       struct list_head        ft_chain;
+       struct obd_export      *ft_exp;
+       struct lu_server_fld   *ft_srv;
+       __u64                   ft_idx;
 };
 
 struct lu_server_fld {
         /**
          * Fld dir proc entry. */
-        cfs_proc_dir_entry_t    *lsf_proc_dir;
+       struct proc_dir_entry   *lsf_proc_dir;
 
         /**
          * /fld file object device */
@@ -98,16 +96,28 @@ struct lu_server_fld {
          * Fld service name in form "fld-srv-lustre-MDTXXX" */
         char                     lsf_name[80];
 
+       int (*lsf_seq_lookup)(const struct lu_env *env,
+                             struct lu_server_fld *fld, u64 seq,
+                             struct lu_seq_range *range);
+
+       /**
+        * Just reformatted or upgraded, and this flag is being
+        * used to check whether the local FLDB is needs to be
+        * synced with global FLDB(in MDT0), and it is only needed
+        * if the MDT is upgraded from < 2.6 to 2.6, i.e. when the
+        * local FLDB is being invited */
+       unsigned int             lsf_new:1;
+
 };
 
 struct lu_client_fld {
-        /**
-         * Client side proc entry. */
-        cfs_proc_dir_entry_t    *lcf_proc_dir;
+       /**
+        * Client side proc entry. */
+       struct proc_dir_entry   *lcf_proc_dir;
 
-        /**
-         * List of exports client FLD knows about. */
-        cfs_list_t               lcf_targets;
+       /**
+        * List of exports client FLD knows about. */
+       struct list_head        lcf_targets;
 
         /**
          * Current hash to be used to chose an export. */
@@ -128,42 +138,36 @@ struct lu_client_fld {
         /**
          * Client fld proc entry name. */
         char                     lcf_name[80];
-
-        const struct lu_context *lcf_ctx;
-
-        int                      lcf_flags;
 };
 
-/**
- * number of blocks to reserve for particular operations. Should be function of
- * ... something. Stub for now.
- */
-enum {
-        /* one insert operation can involve two delete and one insert */
-        FLD_TXN_INDEX_INSERT_CREDITS  = 60,
-        FLD_TXN_INDEX_DELETE_CREDITS  = 20,
-};
-
-int fld_query(struct com_thread_info *info);
-
 /* Server methods */
 int fld_server_init(const struct lu_env *env, struct lu_server_fld *fld,
-                   struct dt_device *dt, const char *prefix, int mds_node_id);
+                   struct dt_device *dt, const char *prefix, int type);
 
 void fld_server_fini(const struct lu_env *env, struct lu_server_fld *fld);
 
 int fld_declare_server_create(const struct lu_env *env,
                              struct lu_server_fld *fld,
-                             struct lu_seq_range *new,
+                             const struct lu_seq_range *range,
                              struct thandle *th);
 
 int fld_server_create(const struct lu_env *env,
                      struct lu_server_fld *fld,
-                     struct lu_seq_range *add_range,
+                     const struct lu_seq_range *add_range,
                      struct thandle *th);
 
+int fld_insert_entry(const struct lu_env *env,
+                    struct lu_server_fld *fld,
+                    const struct lu_seq_range *range);
+
 int fld_server_lookup(const struct lu_env *env, struct lu_server_fld *fld,
-                     seqno_t seq, struct lu_seq_range *range);
+                     u64 seq, struct lu_seq_range *range);
+
+int fld_local_lookup(const struct lu_env *env, struct lu_server_fld *fld,
+                    u64 seq, struct lu_seq_range *range);
+
+int fld_update_from_controller(const struct lu_env *env,
+                              struct lu_server_fld *fld);
 
 /* Client methods */
 int fld_client_init(struct lu_client_fld *fld,
@@ -173,15 +177,14 @@ void fld_client_fini(struct lu_client_fld *fld);
 
 void fld_client_flush(struct lu_client_fld *fld);
 
-int fld_client_lookup(struct lu_client_fld *fld, seqno_t seq, mdsno_t *mds,
+int fld_client_lookup(struct lu_client_fld *fld, u64 seq, u32 *mds,
                       __u32 flags, const struct lu_env *env);
 
 int fld_client_create(struct lu_client_fld *fld,
                       struct lu_seq_range *range,
                       const struct lu_env *env);
 
-int fld_client_delete(struct lu_client_fld *fld,
-                      seqno_t seq,
+int fld_client_delete(struct lu_client_fld *fld, u64 seq,
                       const struct lu_env *env);
 
 int fld_client_add_target(struct lu_client_fld *fld,