Hi The patch b7f8dff09827c96032c34a945ee7757e394b5952 ("dm: simplify dm_sumbit_bio_remap interface") removes the "from_wq" parameter and adds io->map_task and compares it to the "current" pointer. I think that this is not safe, because the original task that submitted the bio may exit, a new task with the same "current" pointer may be created and the test "if (io->map_task == current)" may spuriously return true. Or, do you have some reason why do you think that returning true spuriously in this test doesn't matter? Mikulas -- dm-devel mailing list dm-devel@xxxxxxxxxx https://listman.redhat.com/mailman/listinfo/dm-devel