xnu-344.12.2.tar.gz

[apple/xnu.git] / bsd / sys / buf.h

diff --git a/bsd/sys/buf.h b/bsd/sys/buf.h
index fb456c5625ae4ff120e8fb2841df78bed9e7194c..d051d11f0b1c26bd873a7b0d999eee4ab0f347a6 100644 (file)
--- a/bsd/sys/buf.h
+++ b/bsd/sys/buf.h
@@ -132,6 +132,15 @@ struct buf {
 #define b_trans_head b_freelist.tqe_prev
 #define b_trans_next b_freelist.tqe_next
 #define b_real_bp    b_saveaddr
+#define b_iostate    b_rcred
+
+/* journaling uses this cluster i/o field for its own
+ * purposes because meta data buf's should never go
+ * through the clustering code.
+ */
+#define b_transaction b_vectorlist
+
+   
 
 /*
  * These flags are kept in b_flags.
@@ -163,7 +172,7 @@ struct buf {
 #define        B_WRITE         0x00000000      /* Write buffer (pseudo flag). */
 #define        B_WRITEINPROG   0x01000000      /* Write in progress. */
 #define        B_HDRALLOC      0x02000000      /* zone allocated buffer header */
-#define        B_UNUSED1       0x04000000      /* Unused bit */
+#define        B_NORELSE       0x04000000      /* don't brelse() in bwrite() */
 #define B_NEED_IODONE   0x08000000
                                                                /* need to do a biodone on the */
                                                                /* real_bp associated with a cluster_io */