ext4_zeroout_es  3417 fs/ext4/extents.c 		err = ext4_zeroout_es(inode, &zero_ex);
ext4_zeroout_es  3767 fs/ext4/extents.c 		err = ext4_zeroout_es(inode, &zero_ex1);
ext4_zeroout_es  3769 fs/ext4/extents.c 			err = ext4_zeroout_es(inode, &zero_ex2);