LU-15971 llite: implicit default LMV inherit

[fs/lustre-release.git] / lustre / mdt / mdt_internal.h

diff --git a/lustre/mdt/mdt_internal.h b/lustre/mdt/mdt_internal.h
index b11a29f..342f8d3 100644 (file)
--- a/lustre/mdt/mdt_internal.h
+++ b/lustre/mdt/mdt_internal.h
@@ -309,7 +309,12 @@ struct mdt_device {
                                   mdt_readonly:1,
                                   mdt_skip_lfsck:1,
                                   /* dir restripe migrate dirent only */
-                                  mdt_dir_restripe_nsonly:1;
+                                  mdt_dir_restripe_nsonly:1,
+                                  /* this is enabled by default, but once an
+                                   * old client joins, disable this to handle
+                                   * inherited default LMV on server.
+                                   */
+                                  mdt_enable_dmv_implicit_inherit:1;
 
                                   /* user with gid can create remote/striped
                                    * dir, and set default dir stripe */
@@ -346,6 +351,9 @@ struct mdt_device {
        struct mdt_object         *mdt_md_root;
 
        struct mdt_dir_restriper   mdt_restriper;
+
+       /* count of old clients that doesn't support DMV implicite inherit */
+       atomic_t                   mdt_dmv_old_client_count;
 };
 
 #define MDT_SERVICE_WATCHDOG_FACTOR    (2)