LU-11025 dne: support directory restripe

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

diff --git a/lustre/include/md_object.h b/lustre/include/md_object.h
index 263c55d..c6b02c7 100644 (file)
--- a/lustre/include/md_object.h
+++ b/lustre/include/md_object.h
@@ -168,7 +168,8 @@ struct md_op_spec {
                     sp_cr_lookup:1, /* do lookup sanity check or not. */
                     sp_rm_entry:1,  /* only remove name entry */
                     sp_permitted:1, /* do not check permission */
-                    sp_migrate_close:1; /* close the file during migrate */
+                    sp_migrate_close:1, /* close the file during migrate */
+                    sp_migrate_nsonly:1; /* migrate dirent only */
        /** Current lock mode for parent dir where create is performing. */
        mdl_mode_t sp_cr_mode;
 
@@ -181,9 +182,10 @@ enum md_layout_opc {
        MD_LAYOUT_WRITE,        /* FLR: write the file */
        MD_LAYOUT_RESYNC,       /* FLR: resync starts */
        MD_LAYOUT_RESYNC_DONE,  /* FLR: resync done */
-       MD_LAYOUT_ATTACH,       /* attach stripes to target dir */
-       MD_LAYOUT_DETACH,       /* detach stripes from dir */
-       MD_LAYOUT_SHRINK,       /* shrink stripes (check empty and destroy) */
+       MD_LAYOUT_ATTACH,       /* attach stripes */
+       MD_LAYOUT_DETACH,       /* detach stripes */
+       MD_LAYOUT_SHRINK,       /* shrink striped directory (destroy stripes) */
+       MD_LAYOUT_SPLIT,        /* split directory (allocate new stripes) */
        MD_LAYOUT_MAX,
 };
 
@@ -191,13 +193,24 @@ enum md_layout_opc {
  * Parameters for layout change API.
  */
 struct md_layout_change {
-       enum md_layout_opc       mlc_opc;
-       __u16                    mlc_mirror_id;
-       struct layout_intent    *mlc_intent;
-       struct lu_buf            mlc_buf;
-       struct lustre_som_attrs  mlc_som;
-       size_t                   mlc_resync_count;
-       __u32                   *mlc_resync_ids;
+       enum md_layout_opc                       mlc_opc;
+       struct lu_buf                            mlc_buf;
+       union {
+               struct {
+                       __u16                    mlc_mirror_id;
+                       struct layout_intent    *mlc_intent;
+                       struct lustre_som_attrs  mlc_som;
+                       size_t                   mlc_resync_count;
+                       __u32                   *mlc_resync_ids;
+               }; /* file */
+               struct {
+                       struct md_object        *mlc_parent;    /* parent obj in plain dir split */
+                       struct md_object        *mlc_target;    /* target obj in plain dir split */
+                       struct lu_attr          *mlc_attr;      /* target attr in plain dir split */
+                       const struct lu_name    *mlc_name;      /* target name in plain dir split */
+                       struct md_op_spec       *mlc_spec;      /* dir split spec */
+               }; /* dir */
+       };
 };
 
 union ldlm_policy_data;