ocfs2: Add dir_resv_level mount option

The default behavior for directory reservations stays the same, but we add a
mount option so people can tweak the size of directory reservations
according to their workloads.

Signed-off-by: Mark Fasheh <mfasheh@suse.com>
Signed-off-by: Joel Becker <joel.becker@oracle.com>

1 files changed, 1 insertions, 0 deletions

diff --git a/fs/ocfs2/ocfs2.h b/fs/ocfs2/ocfs2.h
index 09d7aee3dabe..a388528f485c 100644
--- a/fs/ocfs2/ocfs2.h
+++ b/fs/ocfs2/ocfs2.h
@@ -356,6 +356,7 @@ struct ocfs2_super
         struct ocfs2_reservation_map    osb_la_resmap;
 
         unsigned int    osb_resv_level;
+        unsigned int    osb_dir_resv_level;
 
         /* Next three fields are for local node slot recovery during
          * mount. */