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authorMark Fasheh <mfasheh@suse.com>2008-11-18 17:15:24 -0800
committerMark Fasheh <mfasheh@suse.com>2009-01-05 08:40:24 -0800
commite97fcd95a4778a8caf1980c6c72fdf68185a0838 (patch)
tree795c007ed03c091c860df8b03986fbe444f51530 /include
parent19ece546a418997226bd91552fbc41abcb05cea6 (diff)
jbd2: Add BH_JBDPrivateStart
Add this so that file systems using JBD2 can safely allocate unused b_state bits. 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" <tytso@mit.edu> Signed-off-by: Mark Fasheh <mfasheh@suse.com>
Diffstat (limited to 'include')
-rw-r--r--include/linux/jbd2.h1
1 files changed, 1 insertions, 0 deletions
diff --git a/include/linux/jbd2.h b/include/linux/jbd2.h
index c7d106ef22e2..f36645745489 100644
--- 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 */
};
BUFFER_FNS(JBD, jbd)