LU-3963 obdclass: convert to linux list api

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

diff --git a/lustre/include/md_object.h b/lustre/include/md_object.h
index 5839517..f8d0f46 100644 (file)
--- a/lustre/include/md_object.h
+++ b/lustre/include/md_object.h
@@ -71,17 +71,18 @@ struct md_quota *md_quota(const struct lu_env *env);
 
 /** metadata attributes */
 enum ma_valid {
-        MA_INODE     = (1 << 0),
-        MA_LOV       = (1 << 1),
-        MA_COOKIE    = (1 << 2),
-        MA_FLAGS     = (1 << 3),
-        MA_LMV       = (1 << 4),
-        MA_ACL_DEF   = (1 << 5),
-        MA_LOV_DEF   = (1 << 6),
-        MA_LAY_GEN   = (1 << 7),
-        MA_HSM       = (1 << 8),
-        MA_SOM       = (1 << 9),
-        MA_PFID      = (1 << 10)
+       MA_INODE     = (1 << 0),
+       MA_LOV       = (1 << 1),
+       MA_COOKIE    = (1 << 2),
+       MA_FLAGS     = (1 << 3),
+       MA_LMV       = (1 << 4),
+       MA_ACL_DEF   = (1 << 5),
+       MA_LOV_DEF   = (1 << 6),
+       MA_LAY_GEN   = (1 << 7),
+       MA_HSM       = (1 << 8),
+       MA_SOM       = (1 << 9),
+       MA_PFID      = (1 << 10),
+       MA_LMV_DEF   = (1 << 11)
 };
 
 typedef enum {
@@ -138,13 +139,11 @@ struct md_attr {
         struct lov_mds_md      *ma_lmm;
        union lmv_mds_md       *ma_lmv;
         void                   *ma_acl;
-        struct llog_cookie     *ma_cookie;
         struct lustre_capa     *ma_capa;
         struct md_som_data     *ma_som;
         int                     ma_lmm_size;
         int                     ma_lmv_size;
         int                     ma_acl_size;
-        int                     ma_cookie_size;
         __u16                   ma_layout_gen;
 };
 
@@ -179,6 +178,7 @@ struct md_op_spec {
         const struct dt_index_features *sp_feat;
 };
 
+union ldlm_policy_data;
 /**
  * Operations implemented for each md object (both directory and leaf).
  */
@@ -254,7 +254,11 @@ struct md_object_operations {
        int (*moo_object_lock)(const struct lu_env *env, struct md_object *obj,
                               struct lustre_handle *lh,
                               struct ldlm_enqueue_info *einfo,
-                              void *policy);
+                              union ldlm_policy_data *policy);
+       int (*moo_object_unlock)(const struct lu_env *env,
+                                struct md_object *obj,
+                                struct ldlm_enqueue_info *einfo,
+                                union ldlm_policy_data *policy);
 };
 
 /**
@@ -296,6 +300,9 @@ struct md_dir_operations {
                          struct md_object *cobj, const struct lu_name *lname,
                          struct md_attr *ma, int no_name);
 
+       int (*mdo_migrate)(const struct lu_env *env, struct md_object *pobj,
+                          struct md_object *sobj, const struct lu_name *lname,
+                          struct md_object *tobj, struct md_attr *ma);
         /** This method is used to compare a requested layout to an existing
          * layout (struct lov_mds_md_v1/3 vs struct lov_mds_md_v1/3) */
         int (*mdo_lum_lmm_cmp)(const struct lu_env *env,
@@ -416,6 +423,14 @@ struct md_object {
         const struct md_dir_operations    *mo_dir_ops;
 };
 
+/* Mark the object to be dead, and can not be accessed anymore.
+ * XXX, right now, it will only be used for striped directory to
+ * mark the slave stripes dead, when deleting master object. It will be
+ * stored in slave LMV EA (see lod_mark_dead_object), which is only
+ * temporary, and will be removed later when we have proper way to mark
+ * the dead object. */
+#define LUSTRE_SLAVE_DEAD_FL           0x80000000
+
 /**
  * seq-server site.
  */
@@ -470,12 +485,6 @@ static inline struct md_object *md_object_next(const struct md_object *obj)
         return (obj ? lu2md(lu_object_next(&obj->mo_lu)) : NULL);
 }
 
-static inline struct md_device *md_obj2dev(const struct md_object *o)
-{
-        LASSERT(o == NULL || IS_ERR(o) || lu_device_is_md(o->mo_lu.lo_dev));
-        return container_of0(o->mo_lu.lo_dev, struct md_device, md_lu_dev);
-}
-
 static inline int md_device_init(struct md_device *md, struct lu_device_type *t)
 {
         return lu_device_init(&md->md_lu_dev, t);
@@ -669,12 +678,21 @@ static inline int mo_object_lock(const struct lu_env *env,
                                 struct md_object *m,
                                 struct lustre_handle *lh,
                                 struct ldlm_enqueue_info *einfo,
-                                void *policy)
+                                union ldlm_policy_data *policy)
 {
        LASSERT(m->mo_ops->moo_object_lock);
        return m->mo_ops->moo_object_lock(env, m, lh, einfo, policy);
 }
 
+static inline int mo_object_unlock(const struct lu_env *env,
+                                  struct md_object *m,
+                                  struct ldlm_enqueue_info *einfo,
+                                  union ldlm_policy_data *policy)
+{
+       LASSERT(m->mo_ops->moo_object_unlock);
+       return m->mo_ops->moo_object_unlock(env, m, einfo, policy);
+}
+
 static inline int mdo_lookup(const struct lu_env *env,
                              struct md_object *p,
                              const struct lu_name *lname,
@@ -729,6 +747,17 @@ static inline int mdo_rename(const struct lu_env *env,
                                           ma);
 }
 
+static inline int mdo_migrate(const struct lu_env *env,
+                            struct md_object *pobj,
+                            struct md_object *sobj,
+                            const struct lu_name *lname,
+                            struct md_object *tobj,
+                            struct md_attr *ma)
+{
+       LASSERT(pobj->mo_dir_ops->mdo_migrate);
+       return pobj->mo_dir_ops->mdo_migrate(env, pobj, sobj, lname, tobj, ma);
+}
+
 static inline int mdo_is_subdir(const struct lu_env *env,
                                 struct md_object *mo,
                                 const struct lu_fid *fid,
@@ -824,7 +853,7 @@ struct lu_local_obj_desc {
         __u32                            llod_oid;
         int                              llod_is_index;
         const struct dt_index_features  *llod_feat;
-        cfs_list_t                       llod_linkage;
+       struct list_head                 llod_linkage;
 };
 
 int lustre_buf2som(void *buf, int rc, struct md_som_data *msd);