[Cluster-devel] [PATCH 1/2] libgfs2: Add support for dirent.de_rahead

[Andreas Gruenbacher <andreas.gruenbacher@gmail.com>]

This field indicates how many blocks of metadata can be read ahead when reading
in the inode a directory entry points at.

Signed-off-by: Andreas Gruenbacher <andreas.gruenbacher@gmail.com>
---
 gfs2/libgfs2/meta.c   | 1 +
 gfs2/libgfs2/ondisk.c | 2 ++
 2 files changed, 3 insertions(+)

diff --git a/gfs2/libgfs2/meta.c b/gfs2/libgfs2/meta.c
index 79de64d..70daec4 100644
--- a/gfs2/libgfs2/meta.c
+++ b/gfs2/libgfs2/meta.c
@@ -428,6 +428,7 @@ F(de_hash, .flags = LGFS2_MFF_CHECK)
 F(de_rec_len, .flags = LGFS2_MFF_BYTES)
 F(de_name_len, .flags = LGFS2_MFF_BYTES)
 F(de_type)
+F(de_rahead)
 RF(__pad)
 };
 
diff --git a/gfs2/libgfs2/ondisk.c b/gfs2/libgfs2/ondisk.c
index 4744337..7f34bd2 100644
--- a/gfs2/libgfs2/ondisk.c
+++ b/gfs2/libgfs2/ondisk.c
@@ -415,6 +415,7 @@ void gfs2_dirent_in(struct gfs2_dirent *de, char *buf)
 	CPIN_16(de, str, de_rec_len);
 	CPIN_16(de, str, de_name_len);
 	CPIN_16(de, str, de_type);
+	CPIN_16(de, str, de_rahead);
 }
 
 void gfs2_dirent_out(struct gfs2_dirent *de, char *buf)
@@ -427,6 +428,7 @@ void gfs2_dirent_out(struct gfs2_dirent *de, char *buf)
 	CPOUT_16(de, str, de_name_len);
 	CPOUT_16(de, str, de_type);
 	memset(str->__pad, 0, sizeof(str->__pad));
+	CPOUT_16(de, str, de_rahead);
 }
 
 void gfs2_leaf_in(struct gfs2_leaf *lf, struct gfs2_buffer_head *bh)
-- 
2.4.3