linux-kernel - Updated MMAP/SHMGET 1GB patchkit

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Message-Id: <1352157848-29473-1-git-send-email-andi@firstfloor.org>
Date:	Mon,  5 Nov 2012 15:24:07 -0800
From:	Andi Kleen <andi@...stfloor.org>
To:	linux-kernel@...r.kernel.org
Cc:	linux-mm@...ck.org, akpm@...ux-foundation.org,
	mtk.manpages@...il.com
Subject: Updated MMAP/SHMGET 1GB patchkit

This is the updated patchkit to allow to use 1GB pages for mmap/shmget
directly. This is needed for various software and makes it far more
convenient to use 1GB pages.

There were a lot of discussions on the ABI of v6 due to a conflict of
the new bits with the NOMMU only feature MAP_UNINITIALIZED.

However I don't think this matters at all because this feature
only works with HUGETLBFS and HUGETLBFS and NOMMU are mutually
exclusive. So any architecture which suppors HUGETLBFS will
never do MAP_UNINITIALIZED and vice versa. So there's no 
actual conflict in these flags.

Based on that I don't think any changes are needed.

So I decided to just repost with a rebase. 

Please consider applying,

Thanks,
-Andi

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