As explained in ioprio_get() and ionice man pages, the default I/O priority class for processes which have not set an I/O priority using ioprio_set() is IOPRIO_CLASS_BE and not IOPRIO_CLASS_NONE. Signed-off-by: Damien Le Moal <damien.lemoal@xxxxxxx> --- block/ioprio.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/block/ioprio.c b/block/ioprio.c index f9821080c92c..ea5be206eb26 100644 --- a/block/ioprio.c +++ b/block/ioprio.c @@ -163,7 +163,7 @@ static int get_task_ioprio(struct task_struct *p) ret = security_task_getioprio(p); if (ret) goto out; - ret = IOPRIO_PRIO_VALUE(IOPRIO_CLASS_NONE, IOPRIO_NORM); + ret = IOPRIO_PRIO_VALUE(IOPRIO_CLASS_BE, IOPRIO_NORM); task_lock(p); if (p->io_context) ret = p->io_context->ioprio; -- 2.19.1
