BlockJob common;
RateLimit limit;
BlockDriverState *base;
+ BlockdevOnError on_error;
char backing_file_id[1024];
} StreamBlockJob;
BlockDriverState *bs = s->common.bs;
BlockDriverState *base = s->base;
int64_t sector_num, end;
+ int error = 0;
int ret = 0;
int n = 0;
void *buf;
ret = stream_populate(bs, sector_num, n, buf);
}
if (ret < 0) {
- break;
+ BlockErrorAction action =
+ block_job_error_action(&s->common, s->common.bs, s->on_error,
+ true, -ret);
+ if (action == BDRV_ACTION_STOP) {
+ n = 0;
+ continue;
+ }
+ if (error == 0) {
+ error = ret;
+ }
+ if (action == BDRV_ACTION_REPORT) {
+ break;
+ }
}
ret = 0;
bdrv_disable_copy_on_read(bs);
}
+ /* Do not remove the backing file if an error was there but ignored. */
+ ret = error;
+
if (!block_job_is_cancelled(&s->common) && sector_num == end && ret == 0) {
const char *base_id = NULL, *base_fmt = NULL;
if (base) {
void stream_start(BlockDriverState *bs, BlockDriverState *base,
const char *base_id, int64_t speed,
+ BlockdevOnError on_error,
BlockDriverCompletionFunc *cb,
void *opaque, Error **errp)
{
StreamBlockJob *s;
+ if ((on_error == BLOCKDEV_ON_ERROR_STOP ||
+ on_error == BLOCKDEV_ON_ERROR_ENOSPC) &&
+ !bdrv_iostatus_is_enabled(bs)) {
+ error_set(errp, QERR_INVALID_PARAMETER, "on-error");
+ return;
+ }
+
s = block_job_create(&stream_job_type, bs, speed, cb, opaque, errp);
if (!s) {
return;
pstrcpy(s->backing_file_id, sizeof(s->backing_file_id), base_id);
}
+ s->on_error = on_error;
s->common.co = qemu_coroutine_create(stream_run);
trace_stream_start(bs, base, s, s->common.co, opaque);
qemu_coroutine_enter(s->common.co, s);