ext4: pass a char * to ext4_count_free() instead of a buffer_head ptr
commit f6fb99cadcd44660c68e13f6eab28333653621e6 upstream.
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>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
diff --git a/fs/ext4/ext4.h b/fs/ext4/ext4.h
index 0e01e90..962988d 100644
--- a/fs/ext4/ext4.h
+++ b/fs/ext4/ext4.h
@@ -1783,7 +1783,7 @@
# define NORET_AND noreturn,
/* bitmap.c */
-extern unsigned int ext4_count_free(struct buffer_head *, unsigned);
+extern unsigned int ext4_count_free(char *bitmap, unsigned numchars);
/* balloc.c */
extern unsigned int ext4_block_group(struct super_block *sb,