linux-kernel - Re: [PATCH 3/3] futex: fix miss ordered wakeups

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

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]

Message-ID: <a36005b50805222202v6ea7b50p988eab5524935e1a@mail.gmail.com>
Date:	Thu, 22 May 2008 22:02:19 -0700
From:	"Ulrich Drepper" <drepper@...il.com>
To:	"Daniel Walker" <dwalker@...sta.com>
Cc:	linux-kernel@...r.kernel.org
Subject: Re: [PATCH 3/3] futex: fix miss ordered wakeups

On Thu, May 22, 2008 at 12:00 AM, Daniel Walker <dwalker@...sta.com> wrote:
> This patch corrects this issue, so the tasks are always woken in priority
> order.

This is completely unnecessary overhead for 99.999% of all cases.  It
was deliberately not done.  You slowing things down for everybody.  If
you want priorities, then use PI futexes.
--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@...r.kernel.org
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/