LU-3529 lod: create striped directory

[fs/lustre-release.git] / lustre / lod / lod_internal.h

diff --git a/lustre/lod/lod_internal.h b/lustre/lod/lod_internal.h
index 6d99ad5..3647791 100644 (file)
--- a/lustre/lod/lod_internal.h
+++ b/lustre/lod/lod_internal.h
@@ -129,6 +129,7 @@ struct lod_tgt_desc_idx {
         TGT_PTRS_PER_BLOCK]->ldi_tgt[(index) % TGT_PTRS_PER_BLOCK])
 
 #define OST_TGT(lod, index)   LTD_TGT(&lod->lod_ost_descs, index)
+#define MDT_TGT(lod, index)   LTD_TGT(&lod->lod_mdt_descs, index)
 struct lod_tgt_descs {
        /* list of known TGTs */
        struct lod_tgt_desc_idx *ltd_tgt_idx[TGT_PTRS];
@@ -198,6 +199,25 @@ struct lod_device {
 #define ltd_ost                ltd_tgt
 #define lod_ost_desc   lod_tgt_desc
 
+#define lod_mdts               lod_mdt_descs.ltd_tgts
+#define lod_mdt_bitmap         lod_mdt_descs.ltd_tgt_bitmap
+#define lod_remote_mdt_count   lod_mdt_descs.ltd_tgtnr
+#define lod_mdts_size          lod_mdt_descs.ltd_tgts_size
+#define ltd_mdt                        ltd_tgt
+#define lod_mdt_desc           lod_tgt_desc
+
+struct lod_dir_stripe_info {
+       __u32   ldsi_stripe_offset;
+       __u32   ldsi_def_stripenr;
+       __u32   ldsi_def_stripe_offset;
+       __u32   ldsi_def_hash_type;
+       __u32   ldsi_hash_type;
+
+       unsigned int ldsi_striping_cached:1,
+                    ldsi_def_striping_set:1,
+                    ldsi_striped:1;
+};
+
 /*
  * XXX: shrink this structure, currently it's 72bytes on 32bit arch,
  *      so, slab will be allocating 128bytes
@@ -206,6 +226,7 @@ struct lod_object {
        struct dt_object   ldo_obj;
 
        /* if object is striped, then the next fields describe stripes */
+       /* For striped directory, ldo_stripenr == slave stripe count */
        __u16              ldo_stripenr;
        __u16              ldo_layout_gen;
        __u32              ldo_stripe_size;
@@ -218,13 +239,25 @@ struct lod_object {
         * is cached in stripenr/stripe_size */
        unsigned int       ldo_stripes_allocated:16,
                           ldo_striping_cached:1,
-                          ldo_def_striping_set:1;
+                          ldo_def_striping_set:1,
+       /* ldo_dir_slave_stripe indicate this is a slave stripe of
+        * a striped dir */
+                          ldo_dir_slave_stripe:1;
        __u32              ldo_def_stripe_size;
        __u16              ldo_def_stripenr;
        __u16              ldo_def_stripe_offset;
+       struct lod_dir_stripe_info      *ldo_dir_stripe;
        mdsno_t            ldo_mds_num;
 };
 
+#define ldo_dir_stripe_offset  ldo_dir_stripe->ldsi_stripe_offset
+#define ldo_dir_def_stripenr   ldo_dir_stripe->ldsi_def_stripenr
+#define ldo_dir_hash_type      ldo_dir_stripe->ldsi_hash_type
+#define ldo_dir_def_hash_type  ldo_dir_stripe->ldsi_def_hash_type
+#define ldo_dir_striping_cached        ldo_dir_stripe->ldsi_striping_cached
+#define ldo_dir_striped                ldo_dir_stripe->ldsi_striped
+#define ldo_dir_def_striping_set       ldo_dir_stripe->ldsi_def_striping_set
+#define ldo_dir_def_stripe_offset      ldo_dir_stripe->ldsi_def_stripe_offset
 
 struct lod_it {
        struct dt_object        *lit_obj; /* object from the layer below */
@@ -235,6 +268,7 @@ struct lod_thread_info {
        /* per-thread buffer for LOV EA */
        void             *lti_ea_store;
        int               lti_ea_store_size;
+       /* per-thread buffer for LMV EA */
        struct lu_buf     lti_buf;
        struct ost_id     lti_ostid;
        struct lu_fid     lti_fid;
@@ -335,7 +369,27 @@ int lod_del_device(const struct lu_env *env, struct lod_device *lod,
 int lod_fini_tgt(const struct lu_env *env, struct lod_device *lod,
                 struct lod_tgt_descs *ltd, bool for_ost);
 int lod_load_striping(const struct lu_env *env, struct lod_object *mo);
-int lod_get_lov_ea(const struct lu_env *env, struct lod_object *mo);
+
+int lod_get_ea(const struct lu_env *env, struct lod_object *lo,
+              const char *name);
+static inline int
+lod_get_lov_ea(const struct lu_env *env, struct lod_object *lo)
+{
+       return lod_get_ea(env, lo, XATTR_NAME_LOV);
+}
+
+static inline int
+lod_get_lmv_ea(const struct lu_env *env, struct lod_object *lo)
+{
+       return lod_get_ea(env, lo, XATTR_NAME_LMV);
+}
+
+static inline int
+lod_get_default_lmv_ea(const struct lu_env *env, struct lod_object *lo)
+{
+       return lod_get_ea(env, lo, XATTR_NAME_DEFALT_LMV);
+}
+
 void lod_fix_desc(struct lov_desc *desc);
 void lod_fix_desc_qos_maxage(__u32 *val);
 void lod_fix_desc_pattern(__u32 *val);
@@ -345,6 +399,8 @@ int lod_pools_init(struct lod_device *m, struct lustre_cfg *cfg);
 int lod_pools_fini(struct lod_device *m);
 int lod_parse_striping(const struct lu_env *env, struct lod_object *mo,
                       const struct lu_buf *buf);
+int lod_parse_dir_striping(const struct lu_env *env, struct lod_object *lo,
+                          const struct lu_buf *buf);
 int lod_initialize_objects(const struct lu_env *env, struct lod_object *mo,
                           struct lov_ost_data_v1 *objs);
 int lod_store_def_striping(const struct lu_env *env, struct dt_object *dt,
@@ -352,7 +408,7 @@ int lod_store_def_striping(const struct lu_env *env, struct dt_object *dt,
 int lod_verify_striping(struct lod_device *d, const struct lu_buf *buf, int specific);
 int lod_generate_and_set_lovea(const struct lu_env *env,
                               struct lod_object *mo, struct thandle *th);
-
+int lod_ea_store_resize(struct lod_thread_info *info, int size);
 /* lod_pool.c */
 int lod_ost_pool_add(struct ost_pool *op, __u32 idx, unsigned int min_count);
 int lod_ost_pool_remove(struct ost_pool *op, __u32 idx);