resv_blocks 5630 fs/ext4/super.c ext4_fsblk_t overhead = 0, resv_blocks; resv_blocks 5633 fs/ext4/super.c resv_blocks = EXT4_C2B(sbi, atomic64_read(&sbi->s_resv_clusters)); resv_blocks 5646 fs/ext4/super.c (ext4_r_blocks_count(es) + resv_blocks); resv_blocks 5647 fs/ext4/super.c if (buf->f_bfree < (ext4_r_blocks_count(es) + resv_blocks))