Call ioctl before each write on retry
If the update is a retry, ioctl(BLKDISCARD) the destination blocks before
writing to these blocks.
Bug: 28990135
Change-Id: I1e703808e68ebb1292cd66afd76be8fd6946ee59
diff --git a/updater/updater.cpp b/updater/updater.cpp
index b5db71e..e956dd5 100644
--- a/updater/updater.cpp
+++ b/updater/updater.cpp
@@ -48,7 +48,7 @@
setbuf(stdout, NULL);
setbuf(stderr, NULL);
- if (argc != 4) {
+ if (argc != 4 && argc != 5) {
printf("unexpected number of arguments (%d)\n", argc);
return 1;
}
@@ -142,6 +142,14 @@
state.script = script;
state.errmsg = NULL;
+ if (argc == 5) {
+ if (strcmp(argv[4], "retry") == 0) {
+ state.is_retry = true;
+ } else {
+ printf("unexpected argument: %s", argv[4]);
+ }
+ }
+
char* result = Evaluate(&state, root);
if (have_eio_error) {