ext4_count_free 813 fs/ext4/balloc.c x = ext4_count_free(bitmap_bh, sb->s_blocksize); ext4_count_free 1044 fs/ext4/ext4.h extern unsigned long ext4_count_free(struct buffer_head *, unsigned); ext4_count_free 988 fs/ext4/ialloc.c x = ext4_count_free(bitmap_bh, EXT4_INODES_PER_GROUP(sb) / 8);