commit c2470654d4b4db09a7052fc5fa108ac21f1b1948
author Colin Cross <ccross@android.com> Wed Jan 26 16:39:46 2011 -0800
committer Colin Cross <ccross@android.com> Fri Jan 28 14:12:00 2011 -0800
tree fd74487bb48f4249ed3e00b094155c0b7ff1f43c
parent 442985bad72adb119aa29dbe1b8c903fa834e089

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

ext4_utils/Android.mk

diff --git a/ext4_utils/Android.mk b/ext4_utils/Android.mk
index 59b7bdf..57d0996 100644
--- a/ext4_utils/Android.mk
+++ b/ext4_utils/Android.mk
@@ -14,7 +14,8 @@
         indirect.c \
         uuid.c \
         sha1.c \
-	sparse_crc32.c
+	sparse_crc32.c \
+	wipe.c
 
 LOCAL_SRC_FILES := $(libext4_utils_src_files)
 LOCAL_MODULE := libext4_utils