lists.openwall.net | lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC | |
Open Source and information security mailing list archives
| ||
|
Date: Thu, 16 Jan 2020 18:03:42 +0100 From: Stefano Garzarella <sgarzare@...hat.com> To: Jens Axboe <axboe@...nel.dk> Cc: Alexander Viro <viro@...iv.linux.org.uk>, io-uring@...r.kernel.org, linux-kernel@...r.kernel.org, linux-fsdevel@...r.kernel.org Subject: Re: [PATCH] io_uring: wakeup threads waiting for EPOLLOUT events On Thu, Jan 16, 2020 at 09:30:12AM -0700, Jens Axboe wrote: > On 1/16/20 9:26 AM, Stefano Garzarella wrote: > >> Since the use case is mostly single submitter, unless you're doing > >> something funky or unusual, you're not going to be needing POLLOUT ever. > > > > The case that I had in mind was with kernel side polling enabled and > > a single submitter that can use epoll() to wait free slots in the SQ > > ring. (I don't have a test, maybe I can write one...) > > Right, I think that's the only use case where it makes sense, because > you have someone else draining the sq side for you. A test case would > indeed be nice, liburing has a good arsenal of test cases and this would > be a good addition! Sure, I'll send a test to liburing for this case! Thanks, Stefano
Powered by blists - more mailing lists