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| author | Ken Sumrall <ksumrall@android.com> | 2011-03-07 23:29:42 -0800 |
|---|---|---|
| committer | Ken Sumrall <ksumrall@android.com> | 2011-03-10 18:11:46 -0800 |
| commit | e3aeeb4de34dbb93e832e6554f494122ba633f3b (patch) | |
| tree | 2f600612cee4677c2ae4d99f6f791689c3e3e2c8 /include | |
| parent | cf01597121c1c08780966f22e2a62386d0e1a08f (diff) | |
| download | system_core-e3aeeb4de34dbb93e832e6554f494122ba633f3b.zip system_core-e3aeeb4de34dbb93e832e6554f494122ba633f3b.tar.gz system_core-e3aeeb4de34dbb93e832e6554f494122ba633f3b.tar.bz2 | |
Try to unmount writable filesystems when rebooting
Ext4 filesystems like to be unmounted before rebooting. The Android system
doesn't have a traditional Linux init setup, and shutting down the system
was not much more than calling sync(2) and reboot(2). This adds a new
function to libcutils called android_reboot(). By default, it calls sync()
and then remounts all writable filesystems as read-only and marks them clean.
There is a flag parameter in which the caller can ask for sync() not to be
called, or to not remount the filesystems as read-only. Then it will call
reboot(2) as directed by the other parameters. This change also updates
adb, init and toolbox to call the new android_reboot() function.
Fixes bugs 3350709 and 3495575.
Change-Id: I16d71ffce3134310d7a260f61ec6f4dd204124a7
Diffstat (limited to 'include')
| -rw-r--r-- | include/cutils/android_reboot.h | 35 |
1 files changed, 35 insertions, 0 deletions
diff --git a/include/cutils/android_reboot.h b/include/cutils/android_reboot.h new file mode 100644 index 0000000..0c79be7 --- /dev/null +++ b/include/cutils/android_reboot.h @@ -0,0 +1,35 @@ +/* + * Copyright 2011, The Android Open Source Project + * + * Licensed under the Apache License, Version 2.0 (the "License"); + * you may not use this file except in compliance with the License. + * You may obtain a copy of the License at + * + * http://www.apache.org/licenses/LICENSE-2.0 + * + * Unless required by applicable law or agreed to in writing, software + * distributed under the License is distributed on an "AS IS" BASIS, + * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. + * See the License for the specific language governing permissions and + * limitations under the License. + */ + +#ifndef __CUTILS_ANDROID_REBOOT_H__ +#define __CUTILS_ANDROID_REBOOT_H__ + +__BEGIN_DECLS + +/* Commands */ +#define ANDROID_RB_RESTART 0xDEAD0001 +#define ANDROID_RB_POWEROFF 0xDEAD0002 +#define ANDROID_RB_RESTART2 0xDEAD0003 + +/* Flags */ +#define ANDROID_RB_FLAG_NO_SYNC 0x1 +#define ANDROID_RB_FLAG_NO_REMOUNT_RO 0x2 + +int android_reboot(int cmd, int flags, char *arg); + +__END_DECLS + +#endif /* __CUTILS_ANDROID_REBOOT_H__ */ |