linux-kernel - Re: [RFC][PATCH 01/16] writeback: do not self-wakeup

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]

Date:	Sun, 18 Jul 2010 02:44:35 -0400
From:	Christoph Hellwig <hch@...radead.org>
To:	Artem Bityutskiy <dedekind1@...il.com>
Cc:	Jens Axboe <axboe@...nel.dk>, linux-fsdevel@...r.kernel.org,
	linux-kernel@...r.kernel.org
Subject: Re: [RFC][PATCH 01/16] writeback: do not self-wakeup

On Fri, Jul 16, 2010 at 03:44:57PM +0300, Artem Bityutskiy wrote:
> From: Artem Bityutskiy <Artem.Bityutskiy@...ia.com>
> 
> The bdi forker thread wakes up itself via 'bdi_add_to_pending()'.
> And the thread is the only user of 'bdi_add_to_pending()'. Thus,
> we can safely zap the unneeded 'wake_up_process()' call.

At least right now it's called using call_rcu, which offloads the function
to a RCU thread of some sorts.

--
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/