From: "Zhang, Yanmin" <yanmin_zhang@linux.intel.com>
To: Christoph Hellwig <hch@infradead.org>
Cc: "linux-kernel@vger.kernel.org" <linux-kernel@vger.kernel.org>,
kenneth.w.chen@intel.com,
"yanmin.zhang@intel.com" <yanmin.zhang@intel.com>
Subject: Re: [PATCH] Enable mprotect on huge pages
Date: Mon, 27 Feb 2006 13:09:58 +0800 [thread overview]
Message-ID: <1141016998.1256.27.camel@ymzhang-perf.sh.intel.com> (raw)
In-Reply-To: <20060225085409.GA22456@infradead.org>
On Sat, 2006-02-25 at 16:54, Christoph Hellwig wrote:
> On Thu, Feb 23, 2006 at 11:19:40AM +0800, Zhang, Yanmin wrote:
> > From: Zhang, Yanmin <yanmin.zhang@intel.com>
> >
> > 2.6.16-rc3 uses hugetlb on-demand paging, but it doesn?t support hugetlb
> > mprotect. My patch against 2.6.16-rc3 enables this capability.
>
> Adding another special case for hugetlb pages sounds rather bad. Could
> you try adding a mrotect vm_area_operation if that works out cleaner?
I don't quite understand your idea. vm_operations_struct has no mprotect function
pointer. Could you elaborate it?
In current kernel, sys_mprotect would bypass hugetlb if (is_vm_hugetlb_page(vma)).
prev parent reply other threads:[~2006-02-27 5:12 UTC|newest]
Thread overview: 23+ messages / expand[flat|nested] mbox.gz Atom feed top
2006-02-23 3:19 Zhang, Yanmin
2006-02-24 22:28 ` Andrew Morton
2006-02-26 23:09 ` David Gibson
2006-02-27 5:36 ` Zhang, Yanmin
2006-02-27 6:33 ` Zhang, Yanmin
2006-02-28 1:34 ` Andrew Morton
2006-02-28 3:23 ` Zhang, Yanmin
2006-02-28 3:32 ` David Gibson
2006-02-28 3:37 ` Zhang, Yanmin
2006-02-28 8:24 ` David Gibson
2006-02-27 7:26 ` David Gibson
2006-02-25 8:54 ` Christoph Hellwig
2006-02-25 10:08 ` [2.4.32 - 2.6.15.4] e1000 - Fix mii interface Paul Rolland
2006-02-26 10:42 ` Willy TARREAU
2006-02-26 11:39 ` Paul Rolland
2006-02-26 12:59 ` Jesper Juhl
2006-02-26 14:55 ` Paul Rolland
2006-02-26 15:00 ` Jesper Juhl
2006-02-26 15:12 ` Paul Rolland
2006-02-27 19:26 ` Jesse Brandeburg
[not found] ` <4807377b0602271234v4b6cdeecpbcf8d4a6ac51cd20@mail.gmail.com>
2006-02-28 2:31 ` Jesse Brandeburg
2006-02-28 10:46 ` Paul Rolland
2006-02-27 5:09 ` Zhang, Yanmin [this message]
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