X-Git-Url: https://git.whamcloud.com/?p=fs%2Flustre-release.git;a=blobdiff_plain;f=lustre%2Finclude%2Fdt_object.h;h=5176f12a449be024c496a237ba2a50dc224a9ce1;hp=545519490a5facf3804a4e9a2445f84ddb134c73;hb=59063a39319baba5cd496ff0dda8e8d405c14f51;hpb=bd12686ac514c0379eaf2834544b7562739f11f2

diff --git a/lustre/include/dt_object.h b/lustre/include/dt_object.h
index 5455194..5176f12 100644
--- a/lustre/include/dt_object.h
+++ b/lustre/include/dt_object.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, 2013, Intel Corporation.
  */
 /*
  * This file is part of Lustre, http://www.lustre.org/
@@ -65,9 +65,9 @@ struct thandle;
 struct dt_device;
 struct dt_object;
 struct dt_index_features;
-struct dt_quota_ctxt;
 struct niobuf_local;
 struct niobuf_remote;
+struct ldlm_enqueue_info;
 
 typedef enum {
         MNTOPT_USERXATTR        = 0x00000001,
@@ -174,12 +174,6 @@ struct dt_device_operations {
                                    struct dt_device *dev,
                                    int mode, unsigned long timeout,
                                    __u32 alg, struct lustre_capa_key *keys);
-        /**
-         * Initialize quota context.
-         */
-        void (*dt_init_quota_ctxt)(const struct lu_env *env,
-                                   struct dt_device *dev,
-                                   struct dt_quota_ctxt *ctxt, void *data);
 };
 
 struct dt_index_features {
@@ -219,6 +213,7 @@ enum dt_index_flags {
  */
 extern const struct dt_index_features dt_directory_features;
 extern const struct dt_index_features dt_otable_features;
+extern const struct dt_index_features dt_lfsck_features;
 
 /* index features supported by the accounting objects */
 extern const struct dt_index_features dt_acct_features;
@@ -262,6 +257,7 @@ struct dt_object_format {
         enum dt_format_type dof_type;
         union {
                 struct dof_regular {
+			int striped;
                 } dof_reg;
                 struct dof_dir {
                 } dof_dir;
@@ -382,6 +378,7 @@ struct dt_object_operations {
         void  (*do_ah_init)(const struct lu_env *env,
                             struct dt_allocation_hint *ah,
                             struct dt_object *parent,
+			    struct dt_object *child,
                             cfs_umode_t child_mode);
         /**
          * Create new object on this device.
@@ -452,6 +449,14 @@ struct dt_object_operations {
          */
         int (*do_data_get)(const struct lu_env *env, struct dt_object *dt,
                            void **data);
+
+	/**
+	 * Lock object.
+	 */
+	int (*do_object_lock)(const struct lu_env *env, struct dt_object *dt,
+			      struct lustre_handle *lh,
+			      struct ldlm_enqueue_info *einfo,
+			      void *policy);
 };
 
 /**
@@ -522,9 +527,9 @@ struct dt_body_operations {
          * Punch object's content
          * precondition: regular object, not index
          */
-        int   (*do_declare_punch)(const struct lu_env *, struct dt_object *,
+        int   (*dbo_declare_punch)(const struct lu_env *, struct dt_object *,
                                   __u64, __u64, struct thandle *th);
-        int   (*do_punch)(const struct lu_env *env, struct dt_object *dt,
+        int   (*dbo_punch)(const struct lu_env *env, struct dt_object *dt,
                           __u64 start, __u64 end, struct thandle *th,
                           struct lustre_capa *capa);
 };
@@ -674,6 +679,29 @@ struct dt_object {
         const struct dt_index_operations  *do_index_ops;
 };
 
+/*
+ * In-core representation of per-device local object OID storage
+ */
+struct local_oid_storage {
+	/* all initialized llog systems on this node linked by this */
+	cfs_list_t	  los_list;
+
+	/* how many handle's reference this los has */
+	cfs_atomic_t	  los_refcount;
+	struct dt_device *los_dev;
+	struct dt_object *los_obj;
+
+	/* data used to generate new fids */
+	struct mutex	  los_id_lock;
+	__u64		  los_seq;
+	__u32		  los_last_oid;
+};
+
+static inline struct lu_device *dt2lu_dev(struct dt_device *d)
+{
+        return &d->dd_lu_dev;
+}
+
 static inline struct dt_object *lu2dt(struct lu_object *l)
 {
         LASSERT(l == NULL || IS_ERR(l) || lu_device_is_dt(l->lo_dev));
@@ -690,6 +718,17 @@ static inline int dt_object_exists(const struct dt_object *dt)
         return lu_object_exists(&dt->do_lu);
 }
 
+static inline int dt_object_remote(const struct dt_object *dt)
+{
+	return lu_object_remote(&dt->do_lu);
+}
+
+static inline struct dt_object *lu2dt_obj(struct lu_object *o)
+{
+	LASSERT(ergo(o != NULL, lu_device_is_dt(o->lo_dev)));
+	return container_of0(o, struct dt_object, do_lu);
+}
+
 /**
  * This is the general purpose transaction handle.
  * 1. Transaction Life Cycle
@@ -705,24 +744,32 @@ static inline int dt_object_exists(const struct dt_object *dt)
  *      No RPC request should be issued inside transaction.
  */
 struct thandle {
-        /** the dt device on which the transactions are executed */
-        struct dt_device *th_dev;
+	/** the dt device on which the transactions are executed */
+	struct dt_device *th_dev;
+
+	/** context for this transaction, tag is LCT_TX_HANDLE */
+	struct lu_context th_ctx;
 
-        /** additional tags (layers can add in declare) */
-        __u32             th_tags;
+	/** additional tags (layers can add in declare) */
+	__u32             th_tags;
 
-        /** context for this transaction, tag is LCT_TX_HANDLE */
-        struct lu_context th_ctx;
+	/** the last operation result in this transaction.
+	 * this value is used in recovery */
+	__s32             th_result;
 
-        /** the last operation result in this transaction.
-         * this value is used in recovery */
-        __s32             th_result;
+	/** whether we need sync commit */
+	unsigned int		th_sync:1;
 
-        /** whether we need sync commit */
-        int               th_sync:1;
+	/* local transation, no need to inform other layers */
+	unsigned int		th_local:1;
 
-        /* local transation, no need to inform other layers */
-        int               th_local:1;
+	/* In DNE, one transaction can be disassemblied into
+	 * updates on several different MDTs, and these updates
+	 * will be attached to th_remote_update_list per target.
+	 * Only single thread will access the list, no need lock
+	 */
+	cfs_list_t		th_remote_update_list;
+	struct update_request	*th_current_request;
 };
 
 /**
@@ -771,6 +818,10 @@ int dt_path_parser(const struct lu_env *env,
                    char *local, dt_entry_func_t entry_func,
                    void *data);
 
+struct dt_object *
+dt_store_resolve(const struct lu_env *env, struct dt_device *dt,
+		 const char *path, struct lu_fid *fid);
+
 struct dt_object *dt_store_open(const struct lu_env *env,
                                 struct dt_device *dt,
                                 const char *dirname,
@@ -783,9 +834,76 @@ struct dt_object *dt_find_or_create(const struct lu_env *env,
                                     struct dt_object_format *dof,
                                     struct lu_attr *attr);
 
-struct dt_object *dt_locate(const struct lu_env *env,
-                            struct dt_device *dev,
-                            const struct lu_fid *fid);
+struct dt_object *dt_locate_at(const struct lu_env *env,
+			       struct dt_device *dev,
+			       const struct lu_fid *fid,
+			       struct lu_device *top_dev);
+static inline struct dt_object *
+dt_locate(const struct lu_env *env, struct dt_device *dev,
+	  const struct lu_fid *fid)
+{
+	return dt_locate_at(env, dev, fid, dev->dd_lu_dev.ld_site->ls_top_dev);
+}
+
+
+int local_oid_storage_init(const struct lu_env *env, struct dt_device *dev,
+			   const struct lu_fid *first_fid,
+			   struct local_oid_storage **los);
+void local_oid_storage_fini(const struct lu_env *env,
+			    struct local_oid_storage *los);
+int local_object_fid_generate(const struct lu_env *env,
+			      struct local_oid_storage *los,
+			      struct lu_fid *fid);
+int local_object_declare_create(const struct lu_env *env,
+				struct local_oid_storage *los,
+				struct dt_object *o,
+				struct lu_attr *attr,
+				struct dt_object_format *dof,
+				struct thandle *th);
+int local_object_create(const struct lu_env *env,
+			struct local_oid_storage *los,
+			struct dt_object *o,
+			struct lu_attr *attr, struct dt_object_format *dof,
+			struct thandle *th);
+struct dt_object *local_file_find_or_create(const struct lu_env *env,
+					    struct local_oid_storage *los,
+					    struct dt_object *parent,
+					    const char *name, __u32 mode);
+struct dt_object *local_file_find_or_create_with_fid(const struct lu_env *env,
+						     struct dt_device *dt,
+						     const struct lu_fid *fid,
+						     struct dt_object *parent,
+						     const char *name,
+						     __u32 mode);
+struct dt_object *
+local_index_find_or_create(const struct lu_env *env,
+			   struct local_oid_storage *los,
+			   struct dt_object *parent,
+			   const char *name, __u32 mode,
+			   const struct dt_index_features *ft);
+struct dt_object *
+local_index_find_or_create_with_fid(const struct lu_env *env,
+				    struct dt_device *dt,
+				    const struct lu_fid *fid,
+				    struct dt_object *parent,
+				    const char *name, __u32 mode,
+				    const struct dt_index_features *ft);
+int local_object_unlink(const struct lu_env *env, struct dt_device *dt,
+			struct dt_object *parent, const char *name);
+
+static inline int dt_object_lock(const struct lu_env *env,
+				 struct dt_object *o, struct lustre_handle *lh,
+				 struct ldlm_enqueue_info *einfo,
+				 void *policy)
+{
+	LASSERT(o);
+	LASSERT(o->do_ops);
+	LASSERT(o->do_ops->do_object_lock);
+	return o->do_ops->do_object_lock(env, o, lh, einfo, policy);
+}
+
+int dt_lookup_dir(const struct lu_env *env, struct dt_object *dir,
+		  const char *name, struct lu_fid *fid);
 
 static inline int dt_object_sync(const struct lu_env *env,
                                  struct dt_object *o)
@@ -809,6 +927,15 @@ int dt_record_read(const struct lu_env *env, struct dt_object *dt,
                    struct lu_buf *buf, loff_t *pos);
 int dt_record_write(const struct lu_env *env, struct dt_object *dt,
                     const struct lu_buf *buf, loff_t *pos, struct thandle *th);
+typedef int (*dt_index_page_build_t)(const struct lu_env *env,
+				     union lu_page *lp, int nob,
+				     const struct dt_it_ops *iops,
+				     struct dt_it *it, __u32 attr, void *arg);
+int dt_index_walk(const struct lu_env *env, struct dt_object *obj,
+		  const struct lu_rdpg *rdpg, dt_index_page_build_t filler,
+		  void *arg);
+int dt_index_read(const struct lu_env *env, struct dt_device *dev,
+		  struct idx_info *ii, const struct lu_rdpg *rdpg);
 
 static inline struct thandle *dt_trans_create(const struct lu_env *env,
                                               struct dt_device *d)
@@ -1030,7 +1157,7 @@ static inline struct obd_capa *dt_capa_get(const struct lu_env *env,
 {
         LASSERT(dt);
         LASSERT(dt->do_ops);
-        LASSERT(dt->do_ops->do_ref_del);
+	LASSERT(dt->do_ops->do_capa_get);
         return dt->do_ops->do_capa_get(env, dt, old, opc);
 }
 
@@ -1100,8 +1227,8 @@ static inline int dt_declare_punch(const struct lu_env *env,
 {
         LASSERT(dt);
         LASSERT(dt->do_body_ops);
-        LASSERT(dt->do_body_ops->do_declare_punch);
-        return dt->do_body_ops->do_declare_punch(env, dt, start, end, th);
+        LASSERT(dt->do_body_ops->dbo_declare_punch);
+        return dt->do_body_ops->dbo_declare_punch(env, dt, start, end, th);
 }
 
 static inline int dt_punch(const struct lu_env *env, struct dt_object *dt,
@@ -1110,8 +1237,8 @@ static inline int dt_punch(const struct lu_env *env, struct dt_object *dt,
 {
         LASSERT(dt);
         LASSERT(dt->do_body_ops);
-        LASSERT(dt->do_body_ops->do_punch);
-        return dt->do_body_ops->do_punch(env, dt, start, end, th, capa);
+        LASSERT(dt->do_body_ops->dbo_punch);
+        return dt->do_body_ops->dbo_punch(env, dt, start, end, th, capa);
 }
 
 static inline int dt_fiemap_get(const struct lu_env *env, struct dt_object *d,
@@ -1293,6 +1420,18 @@ static inline int dt_commit_async(const struct lu_env *env,
         return dev->dd_ops->dt_commit_async(env, dev);
 }
 
+static inline int dt_init_capa_ctxt(const struct lu_env *env,
+				    struct dt_device *dev,
+				    int mode, unsigned long timeout,
+				    __u32 alg, struct lustre_capa_key *keys)
+{
+	LASSERT(dev);
+	LASSERT(dev->dd_ops);
+	LASSERT(dev->dd_ops->dt_init_capa_ctxt);
+	return dev->dd_ops->dt_init_capa_ctxt(env, dev, mode,
+					      timeout, alg, keys);
+}
+
 static inline int dt_lookup(const struct lu_env *env,
                             struct dt_object *dt,
                             struct dt_rec *rec,
@@ -1315,4 +1454,50 @@ static inline int dt_lookup(const struct lu_env *env,
 
 #define LU221_BAD_TIME (0x80000000U + 24 * 3600)
 
+struct dt_find_hint {
+	struct lu_fid        *dfh_fid;
+	struct dt_device     *dfh_dt;
+	struct dt_object     *dfh_o;
+};
+
+struct dt_thread_info {
+	char                     dti_buf[DT_MAX_PATH];
+	struct dt_find_hint      dti_dfh;
+	struct lu_attr           dti_attr;
+	struct lu_fid            dti_fid;
+	struct dt_object_format  dti_dof;
+	struct lustre_mdt_attrs  dti_lma;
+	struct lu_buf            dti_lb;
+	loff_t                   dti_off;
+};
+
+extern struct lu_context_key dt_key;
+
+static inline struct dt_thread_info *dt_info(const struct lu_env *env)
+{
+	struct dt_thread_info *dti;
+
+	dti = lu_context_key_get(&env->le_ctx, &dt_key);
+	LASSERT(dti);
+	return dti;
+}
+
+int dt_global_init(void);
+void dt_global_fini(void);
+
+# ifdef LPROCFS
+int lprocfs_dt_rd_blksize(char *page, char **start, off_t off,
+			  int count, int *eof, void *data);
+int lprocfs_dt_rd_kbytestotal(char *page, char **start, off_t off,
+			      int count, int *eof, void *data);
+int lprocfs_dt_rd_kbytesfree(char *page, char **start, off_t off,
+			     int count, int *eof, void *data);
+int lprocfs_dt_rd_kbytesavail(char *page, char **start, off_t off,
+			      int count, int *eof, void *data);
+int lprocfs_dt_rd_filestotal(char *page, char **start, off_t off,
+			     int count, int *eof, void *data);
+int lprocfs_dt_rd_filesfree(char *page, char **start, off_t off,
+			    int count, int *eof, void *data);
+# endif /* LPROCFS */
+
 #endif /* __LUSTRE_DT_OBJECT_H */