ocfs2: Grow discontig block groups in one transaction.

[safe/jmp/linux-2.6] / fs / ocfs2 / journal.h

diff --git a/fs/ocfs2/journal.h b/fs/ocfs2/journal.h
index 7dc5656..b5baaa8 100644 (file)
--- a/fs/ocfs2/journal.h
+++ b/fs/ocfs2/journal.h
@@ -561,6 +561,18 @@ static inline int ocfs2_calc_group_alloc_credits(struct super_block *sb,
        return blocks;
 }
 
+/*
+ * Allocating a discontiguous block group requires the credits from
+ * ocfs2_calc_group_alloc_credits() as well as enough credits to fill
+ * the group descriptor's extent list.  The caller already has started
+ * the transaction with ocfs2_calc_group_alloc_credits().  They extend
+ * it with these credits.
+ */
+static inline int ocfs2_calc_bg_discontig_credits(struct super_block *sb)
+{
+       return ocfs2_extent_recs_per_gd(sb);
+}
+
 static inline int ocfs2_calc_tree_trunc_credits(struct super_block *sb,
                                                unsigned int clusters_to_del,
                                                struct ocfs2_dinode *fe,