* 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/
*/
#include <lustre/lustre_idl.h>
-#include <lustre_mdt.h>
-#include <dt_object.h>
-
#include <libcfs/libcfs.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.
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 */
/**
* Protect index modifications */
- cfs_mutex_t lsf_lock;
+ struct mutex lsf_lock;
/**
* 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);
+
/**
- * Backend does not support range lookups,
- * indexes other that 0 will be prohibited */
- int lsf_no_range_lookup;
+ * 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. */
/**
* Lock protecting exports list and fld_hash. */
- cfs_spinlock_t lcf_lock;
+ spinlock_t lcf_lock;
/**
* Client FLD cache. */
* Client fld proc entry name. */
char lcf_name[80];
- const struct lu_context *lcf_ctx;
-
- int lcf_flags;
+ 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,
-};
+/* Server methods */
+int fld_server_init(const struct lu_env *env, struct lu_server_fld *fld,
+ struct dt_device *dt, const char *prefix, int type);
-int fld_query(struct com_thread_info *info);
+void fld_server_fini(const struct lu_env *env, struct lu_server_fld *fld);
-/* Server methods */
-int fld_server_init(struct lu_server_fld *fld,
- struct dt_device *dt,
- const char *prefix,
- const struct lu_env *env,
- int mds_node_id);
+int fld_declare_server_create(const struct lu_env *env,
+ struct lu_server_fld *fld,
+ const struct lu_seq_range *range,
+ struct thandle *th);
-void fld_server_fini(struct lu_server_fld *fld,
- const struct lu_env *env);
+int fld_server_create(const struct lu_env *env,
+ struct lu_server_fld *fld,
+ const struct lu_seq_range *add_range,
+ struct thandle *th);
-int fld_declare_server_create(struct lu_server_fld *fld,
- const struct lu_env *env,
- 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_create(struct lu_server_fld *fld,
- const struct lu_env *env,
- struct lu_seq_range *add_range,
- struct thandle *th);
+int fld_server_lookup(const struct lu_env *env, struct lu_server_fld *fld,
+ u64 seq, struct lu_seq_range *range);
-int fld_server_delete(struct lu_server_fld *fld,
- const struct lu_env *env,
- 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_server_lookup(struct lu_server_fld *fld,
- const struct lu_env *env,
- seqno_t 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,
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,
git://git.whamcloud.com / fs / lustre-release.git / blobdiff