[Ocfs2-tools-devel] [PATCH 1/3] ocfs2: Add ocfs2_extent_recs_per_gd.

[Tao Ma]

Signed-off-by: Tao Ma <tao.ma at oracle.com>
---
 include/ocfs2-kernel/ocfs2_fs.h |   20 ++++++++++++++++++++
 1 files changed, 20 insertions(+), 0 deletions(-)

diff --git a/include/ocfs2-kernel/ocfs2_fs.h b/include/ocfs2-kernel/ocfs2_fs.h
index 303433d..ffda634 100644
--- a/include/ocfs2-kernel/ocfs2_fs.h
+++ b/include/ocfs2-kernel/ocfs2_fs.h
@@ -1309,6 +1309,16 @@ static inline u16 ocfs2_extent_recs_per_eb(struct super_block *sb)
 	return size / sizeof(struct ocfs2_extent_rec);
 }
 
+static inline u16 ocfs2_extent_recs_per_gd(struct super_block *sb)
+{
+	int size;
+
+	size = sb->s_blocksize -
+		offsetof(struct ocfs2_group_desc, bg_list.l_recs);
+
+	return size / sizeof(struct ocfs2_extent_rec);
+}
+
 static inline int ocfs2_dx_entries_per_leaf(struct super_block *sb)
 {
 	int size;
@@ -1468,6 +1478,16 @@ static inline int ocfs2_extent_recs_per_eb(int blocksize)
 	return size / sizeof(struct ocfs2_extent_rec);
 }
 
+static inline int ocfs2_extent_recs_per_gd(int blocksize)
+{
+	int size;
+
+	size = blocksize -
+		offsetof(struct ocfs2_group_desc, bg_list.l_recs);
+
+	return size / sizeof(struct ocfs2_extent_rec);
+}
+
 static inline int ocfs2_dx_entries_per_leaf(int blocksize)
 {
 	int size;
-- 
1.7.1.GIT