ext4_has_free_blocks 676 fs/ext4/balloc.c if (!ext4_has_free_blocks(EXT4_SB(sb), 1) || (*retries)++ > 3) ext4_has_free_blocks 1007 fs/ext4/ext4.h extern ext4_fsblk_t ext4_has_free_blocks(struct ext4_sb_info *sbi,