cmd->iocb.ki_flags = IOCB_DIRECT;
if (rw == WRITE)
- ret = file->f_op->write_iter(&cmd->iocb, &iter);
+ ret = call_write_iter(file, &cmd->iocb, &iter);
else
- ret = file->f_op->read_iter(&cmd->iocb, &iter);
+ ret = call_read_iter(file, &cmd->iocb, &iter);
if (ret != -EIOCBQUEUED)
cmd->iocb.ki_complete(&cmd->iocb, ret, 0);
if ((unsigned int) info->lo_encrypt_key_size > LO_KEY_SIZE)
return -EINVAL;
+ /* I/O need to be drained during transfer transition */
+ blk_mq_freeze_queue(lo->lo_queue);
+
err = loop_release_xfer(lo);
if (err)
- return err;
+ goto exit;
if (info->lo_encrypt_type) {
unsigned int type = info->lo_encrypt_type;
err = loop_init_xfer(lo, xfer, info);
if (err)
- return err;
+ goto exit;
if (lo->lo_offset != info->lo_offset ||
lo->lo_sizelimit != info->lo_sizelimit)
- if (figure_loop_size(lo, info->lo_offset, info->lo_sizelimit))
- return -EFBIG;
+ if (figure_loop_size(lo, info->lo_offset, info->lo_sizelimit)) {
+ err = -EFBIG;
+ goto exit;
+ }
loop_config_discard(lo);
/* update dio if lo_offset or transfer is changed */
__loop_update_dio(lo, lo->use_dio);
- return 0;
+ exit:
+ blk_mq_unfreeze_queue(lo->lo_queue);
+ return err;
}
static int