From: Martin Hicks <mort@sgi.com>
To: Andrew Morton <akpm@osdl.org>
Cc: Martin Hicks <mort@sgi.com>,
linux-mm@kvack.org, raybry@sgi.com, ak@suse.de
Subject: Re: [PATCH/RFC 4/4] VM: automatic reclaim through mempolicy
Date: Thu, 28 Apr 2005 08:56:04 -0400 [thread overview]
Message-ID: <20050428125604.GH19244@localhost> (raw)
In-Reply-To: <20050427163546.7654efc1.akpm@osdl.org>
On Wed, Apr 27, 2005 at 04:35:46PM -0700, Andrew Morton wrote:
> Martin Hicks <mort@sgi.com> wrote:
>
> > The change required adding a "flags" argument to sys_set_mempolicy()
> > to give hints about what kind of memory you're willing to sacrifice.
>
> This is a back-compatible change, so current userspace will continue to
> work OK, yes?
I suspect not. sys_set_mempolicy() takes an extra arg now, so I'd guess
that it'll pull in junk for the "flags" argument during a syscall and
most likely return -EINVAL due to invalid flags (or you'll get yourself
a localreclaim policy).
Sorry for not warning about that.
mh
--
Martin Hicks || Silicon Graphics Inc. || mort@sgi.com
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next prev parent reply other threads:[~2005-04-28 12:56 UTC|newest]
Thread overview: 10+ messages / expand[flat|nested] mbox.gz Atom feed top
[not found] <20050427145734.GL8018@localhost>
2005-04-27 15:09 ` [PATCH/RFC 1/4] VM: merge_lru_pages Martin Hicks
2005-04-27 15:09 ` [PATCH/RFC 2/4] VM: page cache reclaim core Martin Hicks
2005-04-27 23:32 ` Andrew Morton
2005-04-27 15:09 ` [PATCH/RFC 3/4] VM: toss_page_cache_node syscall Martin Hicks
2005-04-27 23:33 ` Andrew Morton
2005-04-27 15:10 ` [PATCH/RFC 4/4] VM: automatic reclaim through mempolicy Martin Hicks
2005-04-27 23:35 ` Andrew Morton
2005-04-28 12:56 ` Martin Hicks [this message]
2005-04-27 23:50 ` Andrew Morton
2005-04-28 17:41 ` Martin Hicks
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