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Re: Why don't we make mmap MAP_SHARED with /dev/zero possible?

To: Ingo Molnar <mingo@chiara.csoma.elte.hu>
Subject: Re: Why don't we make mmap MAP_SHARED with /dev/zero possible?
From: ebiederm+eric@ccr.net (Eric W. Biederman)
Date: 03 Nov 1999 13:16:33 -0600
Cc: Christoph Rohland <hans-christoph.rohland@sap.com>, "Stephen C. Tweedie" <sct@redhat.com>, fxzhang@chpc.ict.ac.cn, "linux-mm@kvack.org" <linux-mm@kvack.org>
References: <Pine.LNX.4.10.9911031736450.7408-100000@chiara.csoma.elte.hu>
Sender: owner-linux-mm@kvack.org

[snip]

Q: Highmem allocation for the page cache.

Note:  page_cache_alloc currently doesn't take any parameters.
It should take __GFP_BIGMEM or whatever so we can yes high memory is ok.
Or no.  
I'm going to put metadata in this page and high memory is not o.k, too inconvienint.

Eric
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Follow-Ups:
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  - From: Ingo Molnar <mingo@chiara.csoma.elte.hu>

References:
- Re: Why don't we make mmap MAP_SHARED with /dev/zero possible?
  - From: Ingo Molnar <mingo@chiara.csoma.elte.hu>

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