ext4: pass a char * to ext4_count_free() instead of a buffer_head ptr

Make it possible for ext4_count_free to operate on buffers and not
just data in buffer_heads.

Signed-off-by: "Theodore Ts'o" <tytso@mit.edu>
Cc: stable@kernel.org

1 files changed, 2 insertions, 1 deletions

diff --git a/fs/ext4/ialloc.c b/fs/ext4/ialloc.c
index d48e8b14928c..6866bc233e94 100644
--- a/fs/ext4/ialloc.c
+++ b/fs/ext4/ialloc.c
@@ -1054,7 +1054,8 @@ unsigned long ext4_count_free_inodes(struct super_block *sb)
                 if (!bitmap_bh)
                         continue;
 
-                x = ext4_count_free(bitmap_bh, EXT4_INODES_PER_GROUP(sb) / 8);
+                x = ext4_count_free(bitmap_bh->b_data,
+                                    EXT4_INODES_PER_GROUP(sb) / 8);
                 printk(KERN_DEBUG "group %lu: stored = %d, counted = %lu\n",
                         (unsigned long) i, ext4_free_inodes_count(sb, gdp), x);
                 bitmap_count += x;