2009-02-18 21:35:54

by Greg KH

[permalink] [raw]
Subject: [patch 28/39] jbd2: Add BH_JBDPrivateStart

2.6.28-stable review patch. If anyone has any objections, please let us know.


From: Mark Fasheh <[email protected]>

(cherry picked from commit e97fcd95a4778a8caf1980c6c72fdf68185a0838)

Add this so that file systems using JBD2 can safely allocate unused b_state

In this case, we add it so that Ocfs2 can define a single bit for tracking
the validation state of a buffer.

Acked-by: "Theodore Ts'o" <[email protected]>
Signed-off-by: Mark Fasheh <[email protected]>
Signed-off-by: Greg Kroah-Hartman <[email protected]>

include/linux/jbd2.h | 1 +
1 file changed, 1 insertion(+)

--- a/include/linux/jbd2.h
+++ b/include/linux/jbd2.h
@@ -329,6 +329,7 @@ enum jbd_state_bits {
BH_State, /* Pins most journal_head state */
BH_JournalHead, /* Pins bh->b_private and jh->b_bh */
BH_Unshadow, /* Dummy bit, for BJ_Shadow wakeup filtering */
+ BH_JBDPrivateStart, /* First bit available for private use by FS */