xfs: improve metadata I/O merging in the elevator

[safe/jmp/linux-2.6] / fs / xfs / linux-2.6 / xfs_buf.h

diff --git a/fs/xfs/linux-2.6/xfs_buf.h b/fs/xfs/linux-2.6/xfs_buf.h
index a509f4a..a34c7b5 100644 (file)
--- a/fs/xfs/linux-2.6/xfs_buf.h
+++ b/fs/xfs/linux-2.6/xfs_buf.h
@@ -55,6 +55,7 @@ typedef enum {
        XBF_FS_MANAGED = (1 << 8),  /* filesystem controls freeing memory  */
        XBF_ORDERED = (1 << 11),    /* use ordered writes                  */
        XBF_READ_AHEAD = (1 << 12), /* asynchronous read-ahead             */
+       XBF_LOG_BUFFER = (1 << 13), /* this is a buffer used for the log   */
 
        /* flags used only as arguments to access routines */
        XBF_LOCK = (1 << 14),       /* lock requested                      */