2 * Copyright (C) 2011 The Android Open Source Project
4 * Licensed under the Apache License, Version 2.0 (the "License");
5 * you may not use this file except in compliance with the License.
6 * You may obtain a copy of the License at
8 * http://www.apache.org/licenses/LICENSE-2.0
10 * Unless required by applicable law or agreed to in writing, software
11 * distributed under the License is distributed on an "AS IS" BASIS,
12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13 * See the License for the specific language governing permissions and
14 * limitations under the License.
17 #include "ext4_utils.h"
20 #if defined(__linux__)
23 #include <sys/ioctl.h>
26 #define BLKDISCARD _IO(0x12,119)
30 #define BLKSECDISCARD _IO(0x12,125)
33 int wipe_block_device(int fd, s64 len)
40 ret = ioctl(fd, BLKSECDISCARD, &range);
44 ret = ioctl(fd, BLKDISCARD, &range);
46 error("Discard failed\n");
49 warn("Wipe via secure discard failed, used discard instead\n");
57 int wipe_block_device(int fd, s64 len)
59 error("wipe not supported on non-linux platforms");