X-Git-Url: http://plrg.eecs.uci.edu/git/?a=blobdiff_plain;f=fs%2Fgfs2%2Flops.h;h=41a00df755879dea4018ae332f40a45155bc9fb6;hb=5e16e3f0e24dadb79b96b6134cd3303f0d42f0c5;hp=417f5aade4b1017436d03dd0d19922ff6a2bb57a;hpb=b3b94faa5fe5968827ba0640ee9fba4b3e7f736e;p=firefly-linux-kernel-4.4.55.git

diff --git a/fs/gfs2/lops.h b/fs/gfs2/lops.h
index 417f5aade4b1..41a00df75587 100644
--- a/fs/gfs2/lops.h
+++ b/fs/gfs2/lops.h
@@ -1,25 +1,51 @@
 /*
  * Copyright (C) Sistina Software, Inc.  1997-2003 All rights reserved.
- * Copyright (C) 2004-2005 Red Hat, Inc.  All rights reserved.
+ * Copyright (C) 2004-2006 Red Hat, Inc.  All rights reserved.
  *
  * This copyrighted material is made available to anyone wishing to use,
  * modify, copy, or redistribute it subject to the terms and conditions
- * of the GNU General Public License v.2.
+ * of the GNU General Public License version 2.
  */
 
 #ifndef __LOPS_DOT_H__
 #define __LOPS_DOT_H__
 
-extern struct gfs2_log_operations gfs2_glock_lops;
-extern struct gfs2_log_operations gfs2_buf_lops;
-extern struct gfs2_log_operations gfs2_revoke_lops;
-extern struct gfs2_log_operations gfs2_rg_lops;
-extern struct gfs2_log_operations gfs2_databuf_lops;
+#include <linux/list.h>
+#include "incore.h"
 
-extern struct gfs2_log_operations *gfs2_log_ops[];
+#define BUF_OFFSET \
+	((sizeof(struct gfs2_log_descriptor) + sizeof(__be64) - 1) & \
+	 ~(sizeof(__be64) - 1))
+#define DATABUF_OFFSET \
+	((sizeof(struct gfs2_log_descriptor) + (2 * sizeof(__be64) - 1)) & \
+	 ~(2 * sizeof(__be64) - 1))
+
+extern const struct gfs2_log_operations gfs2_glock_lops;
+extern const struct gfs2_log_operations gfs2_buf_lops;
+extern const struct gfs2_log_operations gfs2_revoke_lops;
+extern const struct gfs2_log_operations gfs2_rg_lops;
+extern const struct gfs2_log_operations gfs2_databuf_lops;
+
+extern const struct gfs2_log_operations *gfs2_log_ops[];
+
+static inline unsigned int buf_limit(struct gfs2_sbd *sdp)
+{
+	unsigned int limit;
+
+	limit = (sdp->sd_sb.sb_bsize - BUF_OFFSET) / sizeof(__be64);
+	return limit;
+}
+
+static inline unsigned int databuf_limit(struct gfs2_sbd *sdp)
+{
+	unsigned int limit;
+
+	limit = (sdp->sd_sb.sb_bsize - DATABUF_OFFSET) / (2 * sizeof(__be64));
+	return limit;
+}
 
 static inline void lops_init_le(struct gfs2_log_element *le,
-				struct gfs2_log_operations *lops)
+				const struct gfs2_log_operations *lops)
 {
 	INIT_LIST_HEAD(&le->le_list);
 	le->le_ops = lops;
@@ -57,7 +83,7 @@ static inline void lops_after_commit(struct gfs2_sbd *sdp, struct gfs2_ail *ai)
 }
 
 static inline void lops_before_scan(struct gfs2_jdesc *jd,
-				    struct gfs2_log_header *head,
+				    struct gfs2_log_header_host *head,
 				    unsigned int pass)
 {
 	int x;