On 5/9/19 6:47 AM, Erwan Velu wrote: > Isn't that also related to the kernel version you use ? > > This message might mislead the user as he might just have to upgrade his > kernel to gain the feature ? Yes, the message is for the specific kernel, it doesn't speak for any future kernels. But I think we're getting into documentation at this point, the message just means that on this setup, either the fs or device driver (or both) doesn't support polled IO. -- Jens Axboe
