From: Andi Kleen <andi@firstfloor.org>
To: linux-kernel@vger.kernel.org
Cc: linux-mm@kvack.org, akpm@linux-foundation.org, mtk.manpages@gmail.com
Subject: Updated MMAP/SHMGET 1GB patchkit
Date: Mon, 5 Nov 2012 15:24:07 -0800 [thread overview]
Message-ID: <1352157848-29473-1-git-send-email-andi@firstfloor.org> (raw)
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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next reply other threads:[~2012-11-05 23:24 UTC|newest]
Thread overview: 4+ messages / expand[flat|nested] mbox.gz Atom feed top
2012-11-05 23:24 Andi Kleen [this message]
2012-11-05 23:24 ` [PATCH] MM: Support more pagesizes for MAP_HUGETLB/SHM_HUGETLB v7 Andi Kleen
2012-11-06 21:27 ` Andrew Morton
2012-11-07 0:39 ` Andi Kleen
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