From: Jamie Lokier <jamie@shareable.org>
To: Avi Kivity <avi@redhat.com>
Cc: Jeff Moyer <jmoyer@redhat.com>, linux-aio <linux-aio@kvack.org>,
zach.brown@oracle.com, bcrl@kvack.org,
Andrew Morton <akpm@linux-foundation.org>,
linux-kernel@vger.kernel.org
Subject: Re: [patch] aio: remove aio-max-nr and instead use the memlock rlimit to limit the number of pages pinned for the aio completion ring
Date: Mon, 9 Mar 2009 20:36:24 +0000 [thread overview]
Message-ID: <20090309203624.GA2812@shareable.org> (raw)
In-Reply-To: <49B571C7.3010005@redhat.com>
Avi Kivity wrote:
> Or you could queue the completions somewhere, and only copy them to
> user memory when io_getevents() is called. I think the plan was
> once to allow events to be consumed opportunistically even without
> io_getevents(), though.
Isn't that integrated (or to be integrated) with the vring buffer
thingy used by virtio?
If not, should it be?
> Sorry, I didn't actually take a look at the patches. I only reacted to
> the description - I am allergic to pinned memory.
While we're at it I'm allergic to fixed size ring buffers :-)
-- Jamie
next prev parent reply other threads:[~2009-03-09 20:36 UTC|newest]
Thread overview: 49+ messages / expand[flat|nested] mbox.gz Atom feed top
2009-03-09 15:49 [patch] aio: remove aio-max-nr and instead use the memlock rlimit to limit the number of pages pinned for the aio completion ring Jeff Moyer
2009-03-09 15:54 ` [patch] factor out checks against the memlock rlimit Jeff Moyer
2009-03-09 15:59 ` [patch] man-pages: add documentation about the memlock implications of io_setup Jeff Moyer
2009-03-09 16:45 ` Michael Kerrisk
2009-03-09 16:48 ` Michael Kerrisk
2009-03-09 20:44 ` Jeff Moyer
2009-03-09 16:18 ` [patch] aio: remove aio-max-nr and instead use the memlock rlimit to limit the number of pages pinned for the aio completion ring Avi Kivity
2009-03-09 17:57 ` Jeff Moyer
2009-03-09 19:45 ` Avi Kivity
2009-03-09 20:36 ` Jamie Lokier [this message]
2009-03-10 8:36 ` Avi Kivity
2009-03-09 20:31 ` Eric Dumazet
2009-03-12 2:39 ` Eric Dumazet
2009-03-12 2:44 ` Benjamin LaHaise
2009-03-12 3:24 ` Eric Dumazet
2009-03-12 3:29 ` Benjamin LaHaise
2009-03-12 3:33 ` Eric Dumazet
2009-03-12 3:36 ` Benjamin LaHaise
2009-03-12 3:40 ` Eric Dumazet
2009-03-12 3:09 ` Eric Dumazet
2009-03-12 5:18 ` [PATCH] fs: fput() can be called from interrupt context Eric Dumazet
2009-03-12 5:42 ` [PATCH] aio: " Eric Dumazet
2009-03-12 5:47 ` [PATCH] fs: " Andrew Morton
2009-03-12 6:10 ` Eric Dumazet
2009-03-12 6:39 ` Andrew Morton
2009-03-12 13:39 ` Davide Libenzi
2009-03-13 22:34 ` Davide Libenzi
2009-03-13 22:43 ` Eric Dumazet
2009-03-13 23:28 ` Trond Myklebust
2009-03-14 1:40 ` Davide Libenzi
2009-03-14 4:02 ` Trond Myklebust
2009-03-14 14:32 ` Davide Libenzi
2009-03-15 1:36 ` [patch] eventfd - remove fput() call from possible IRQ context Davide Libenzi
2009-03-15 17:44 ` Benjamin LaHaise
2009-03-15 20:08 ` [patch] eventfd - remove fput() call from possible IRQ context (2nd rev) Davide Libenzi
2009-03-16 17:25 ` Jamie Lokier
2009-03-16 18:36 ` Davide Libenzi
2009-03-18 14:22 ` Jeff Moyer
2009-03-18 14:46 ` Davide Libenzi
2009-03-18 14:55 ` Eric Dumazet
2009-03-18 15:25 ` Jeff Moyer
2009-03-18 15:43 ` Eric Dumazet
2009-03-18 16:13 ` Jeff Moyer
2009-03-18 17:25 ` [patch] eventfd - remove fput() call from possible IRQ context (3rd rev) Davide Libenzi
2009-03-18 17:34 ` Jeff Moyer
2009-03-12 19:22 ` [PATCH] fs: fput() can be called from interrupt context Eric Dumazet
2009-03-12 20:21 ` Andrew Morton
2009-03-09 22:36 ` [patch] aio: remove aio-max-nr and instead use the memlock rlimit to limit the number of pages pinned for the aio completion ring Andrew Morton
2009-03-10 13:43 ` Jeff Moyer
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