ext2fs: move calculate_summary_stats to ext2fs lib

The function calculate_summary_stats sets the global metadata of the
file system. Tune2fs had this function defined statically in
tune2fs.c. Fast commit replay needs this function to set global
metadata at the end of the replay phase. So, move this function to
libext2fs.

Signed-off-by: Harshad Shirwadkar <harshadshirwadkar@gmail.com>
Reviewed-by: Theodore Ts'o <tytso@mit.edu>
Signed-off-by: Theodore Ts'o <tytso@mit.edu>

1 files changed, 1 insertions, 58 deletions

diff --git a/misc/tune2fs.c b/misc/tune2fs.c
index e5186fe0..69ee578c 100644
--- a/misc/tune2fs.c
+++ b/misc/tune2fs.c
@@ -2603,63 +2603,6 @@ err_out:
 	return retval;
 }
 
-static errcode_t ext2fs_calculate_summary_stats(ext2_filsys fs)
-{
-	blk64_t		blk;
-	ext2_ino_t	ino;
-	unsigned int	group = 0;
-	unsigned int	count = 0;
-	int		total_free = 0;
-	int		group_free = 0;
-
-	/*
-	 * First calculate the block statistics
-	 */
-	for (blk = fs->super->s_first_data_block;
-	     blk < ext2fs_blocks_count(fs->super); blk++) {
-		if (!ext2fs_fast_test_block_bitmap2(fs->block_map, blk)) {
-			group_free++;
-			total_free++;
-		}
-		count++;
-		if ((count == fs->super->s_blocks_per_group) ||
-		    (blk == ext2fs_blocks_count(fs->super)-1)) {
-			ext2fs_bg_free_blocks_count_set(fs, group++,
-							group_free);
-			count = 0;
-			group_free = 0;
-		}
-	}
-	total_free = EXT2FS_C2B(fs, total_free);
-	ext2fs_free_blocks_count_set(fs->super, total_free);
-
-	/*
-	 * Next, calculate the inode statistics
-	 */
-	group_free = 0;
-	total_free = 0;
-	count = 0;
-	group = 0;
-
-	/* Protect loop from wrap-around if s_inodes_count maxed */
-	for (ino = 1; ino <= fs->super->s_inodes_count && ino > 0; ino++) {
-		if (!ext2fs_fast_test_inode_bitmap2(fs->inode_map, ino)) {
-			group_free++;
-			total_free++;
-		}
-		count++;
-		if ((count == fs->super->s_inodes_per_group) ||
-		    (ino == fs->super->s_inodes_count)) {
-			ext2fs_bg_free_inodes_count_set(fs, group++,
-							group_free);
-			count = 0;
-			group_free = 0;
-		}
-	}
-	fs->super->s_free_inodes_count = total_free;
-	ext2fs_mark_super_dirty(fs);
-	return 0;
-}
 
 #define list_for_each_safe(pos, pnext, head) \
 	for (pos = (head)->next, pnext = pos->next; pos != (head); \
@@ -2738,7 +2681,7 @@ static int resize_inode(ext2_filsys fs, unsigned long new_size)
 	if (retval)
 		goto err_out_undo;
 
-	ext2fs_calculate_summary_stats(fs);
+	ext2fs_calculate_summary_stats(fs, 1 /* super only */);
 
 	fs->super->s_state |= EXT2_VALID_FS;
 	/* mark super block and block bitmap as dirty */