linux-kernel - Re: [patch] convert aio event reap to use atomic-op instead of spin

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: <20070410221849.dcec1ce3.akpm@linux-foundation.org>
Date:	Tue, 10 Apr 2007 22:18:49 -0700
From:	Andrew Morton <akpm@...ux-foundation.org>
To:	kenchen@...gle.com (Ken Chen)
Cc:	linux-aio@...ck.org, linux-kernel@...r.kernel.org
Subject: Re: [patch] convert aio event reap to use atomic-op instead of
 spin_lock

On Tue, 10 Apr 2007 16:53:53 -0700 (PDT) kenchen@...gle.com (Ken Chen) wrote:

> +	} while (head != cmpxchg(&ring->head, head, head + 1));

A hasty grep indicates that only 14 out of 23 architectures implement
cmpxchg().
-
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/