ocfs2: Remove delete inode vote

Ocfs2 currently does cluster-wide node messaging to check the open state of
an inode during delete. This patch removes that mechanism in favor of an
inode cluster lock which is taken at shared read when an inode is first read
and dropped in clear_inode(). This allows a deleting node to test the
liveness of an inode by attempting to take an exclusive lock.

Signed-off-by: Tiger Yang <tiger.yang@oracle.com>
Signed-off-by: Mark Fasheh <mark.fasheh@oracle.com>

1 files changed, 3 insertions, 1 deletions

diff --git a/fs/ocfs2/ocfs2_fs.h b/fs/ocfs2/ocfs2_fs.h
index e61e218f5e0b..a476b63e2e60 100644
--- a/fs/ocfs2/ocfs2_fs.h
+++ b/fs/ocfs2/ocfs2_fs.h
@@ -446,7 +446,9 @@ struct ocfs2_dinode {
         __le32 i_ctime_nsec;
         __le32 i_mtime_nsec;
         __le32 i_attr;
-        __le32 i_reserved1;
+        __le16 i_orphaned_slot;         /* Only valid when OCFS2_ORPHANED_FL
+                                           was set in i_flags */
+        __le16 i_reserved1;
 /*70*/  __le64 i_reserved2[8];
 /*B8*/  union {
                 __le64 i_pad1;          /* Generic way to refer to this