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
diff --git a/ext4_utils/ext4_utils.h b/ext4_utils/ext4_utils.h
index b770294..bed9933 100644
--- a/ext4_utils/ext4_utils.h
+++ b/ext4_utils/ext4_utils.h
@@ -141,7 +141,8 @@
}
int ext4_bg_has_super_block(int bg);
-void write_ext4_image(const char *filename, int gz, int sparse, int crc);
+void write_ext4_image(const char *filename, int gz, int sparse, int crc,
+ int wipe);
void ext4_create_fs_aux_info(void);
void ext4_free_fs_aux_info(void);
void ext4_fill_in_sb(void);