nilfs2: add routines to redirect access to buffers of DAT file

[net-next-2.6.git] / fs / nilfs2 / page.h

diff --git a/fs/nilfs2/page.h b/fs/nilfs2/page.h
index 6ec4f498fc2bc6622bb61747daa10477f93ffd0b..fb9e8a8a20384b5b78a6645d7b4809f0145e24d6 100644 (file)
--- a/fs/nilfs2/page.h
+++ b/fs/nilfs2/page.h
@@ -35,12 +35,14 @@ enum {
        BH_NILFS_Node,
        BH_NILFS_Volatile,
        BH_NILFS_Checked,
+       BH_NILFS_Redirected,
 };
 
 BUFFER_FNS(NILFS_Allocated, nilfs_allocated)   /* nilfs private buffers */
 BUFFER_FNS(NILFS_Node, nilfs_node)             /* nilfs node buffers */
 BUFFER_FNS(NILFS_Volatile, nilfs_volatile)
 BUFFER_FNS(NILFS_Checked, nilfs_checked)       /* buffer is verified */
+BUFFER_FNS(NILFS_Redirected, nilfs_redirected) /* redirected to a copy */
 
 
 void nilfs_mark_buffer_dirty(struct buffer_head *bh);