tree fd74487bb48f4249ed3e00b094155c0b7ff1f43c
parent 442985bad72adb119aa29dbe1b8c903fa834e089
author Colin Cross <ccross@android.com> 1296088786 -0800
committer Colin Cross <ccross@android.com> 1296252720 -0800

ext4_utils: Add support for wipe option, and wipe by default in recovery

Adds a -w option to make_ext4fs, which will attempt to use the
BLKSECDISCARD ioctl to erase the partition in order to avoid
leaving old data where it could be recovered, and to improve
wear levelling after a reformat.

Also causes factory reset through recovery to do a wipe.

Change-Id: Ibe34bbd84552e526be6bd041024a950806aca6b4