Re: x86 patches was Re: -mm merge plans for 2.6.24

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To: Andrew Morton <akpm@...>
Cc: Andi Kleen <andi@...>, <linux-kernel@...>, Huang, Ying <ying.huang@...>, Thomas Gleixner <tglx@...>, Christoph Lameter <clameter@...>, <apw@...>, KAMEZAWA Hiroyuki <kamezawa.hiroyu@...>
Date: Tuesday, October 2, 2007 - 3:55 am

On Tue, Oct 02, 2007 at 12:18:09AM -0700, Andrew Morton wrote:

Grumble. The options are:

a) export it in the kernel's native size and have userspace figure it
out
b) add a header
c) lie to 32-bit apps on 64-bit kernels
d) always export 32 bits
e) always export 64 bits

I started with (a), switched to (b), and then Alan and Dave convinced
me to switch back to (a). I don't think (c) is desireable, especially
as it means having two code paths. (d) would work until memory got
large enough that PFNs didn't fit in 32 bits. (e) would be ok all
around, except for the extra overhead. Ho hum.

-- 
Mathematics is the supreme nostalgia of our time.
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Messages in current thread:
-mm merge plans for 2.6.24, Andrew Morton, (Mon Oct 1, 5:22 pm)
new aops merge [was Re: -mm merge plans for 2.6.24], Hugh Dickins, (Tue Oct 2, 12:21 pm)
x86 patches was Re: -mm merge plans for 2.6.24, Andi Kleen, (Tue Oct 2, 2:18 am)
Re: x86 patches was Re: -mm merge plans for 2.6.24, Andrew Morton, (Tue Oct 2, 2:32 am)
Re: x86 patches was Re: -mm merge plans for 2.6.24, Ingo Molnar, (Tue Oct 2, 3:37 am)
Re: x86 patches was Re: -mm merge plans for 2.6.24, Andi Kleen, (Tue Oct 2, 3:46 am)
Re: x86 patches was Re: -mm merge plans for 2.6.24, Thomas Gleixner, (Tue Oct 2, 3:58 am)
Re: x86 patches was Re: -mm merge plans for 2.6.24, Andi Kleen, (Tue Oct 2, 3:01 am)
Re: x86 patches was Re: -mm merge plans for 2.6.24, Andy Whitcroft, (Tue Oct 2, 5:26 am)
Re: x86 patches was Re: -mm merge plans for 2.6.24, Andrew Morton, (Tue Oct 2, 3:18 am)
Re: x86 patches was Re: -mm merge plans for 2.6.24, KAMEZAWA Hiroyuki, (Tue Oct 2, 3:36 am)
Re: x86 patches was Re: -mm merge plans for 2.6.24, Christoph Lameter, (Tue Oct 2, 2:16 pm)
Re: x86 patches was Re: -mm merge plans for 2.6.24, Nish Aravamudan, (Tue Oct 2, 12:40 pm)
Re: x86 patches was Re: -mm merge plans for 2.6.24, Andrew Morton, (Tue Oct 2, 3:43 am)
Re: x86 patches was Re: -mm merge plans for 2.6.24, KAMEZAWA Hiroyuki, (Tue Oct 2, 4:16 am)
Re: x86 patches was Re: -mm merge plans for 2.6.24, Christoph Lameter, (Tue Oct 2, 2:18 pm)
Re: x86 patches was Re: -mm merge plans for 2.6.24, Yasunori Goto, (Tue Oct 2, 6:48 am)
Re: x86 patches was Re: -mm merge plans for 2.6.24, Lee Schermerhorn, (Tue Oct 2, 1:25 pm)
Re: x86 patches was Re: -mm merge plans for 2.6.24, Lee Schermerhorn, (Tue Oct 2, 1:17 pm)
Re: x86 patches was Re: -mm merge plans for 2.6.24, Matt Mackall, (Tue Oct 2, 3:55 am)
Re: x86 patches was Re: -mm merge plans for 2.6.24, Andi Kleen, (Tue Oct 2, 3:59 am)
Re: -mm merge plans for 2.6.24, Pekka Enberg, (Tue Oct 2, 12:12 pm)
v4l-stk11xx* [Was: -mm merge plans for 2.6.24], Jiri Slaby, (Tue Oct 2, 3:59 am)
writeback fixes, Fengguang Wu, (Tue Oct 2, 4:39 am)
Re: -mm merge plans for 2.6.24, Borislav Petkov, (Sat Oct 13, 4:44 am)
Re: -mm merge plans for 2.6.24, Andrew Morton, (Sat Oct 13, 4:52 am)
Re: -mm merge plans for 2.6.24, Borislav Petkov, (Sat Oct 13, 7:45 am)
r/o bind mounts, was Re: -mm merge plans for 2.6.24, Christoph Hellwig, (Tue Oct 9, 5:19 am)
Re: remove zero_page (was Re: -mm merge plans for 2.6.24), Linus Torvalds, (Wed Oct 3, 11:21 am)
Re: remove zero_page (was Re: -mm merge plans for 2.6.24), Linus Torvalds, (Tue Oct 9, 10:52 am)
Re: remove zero_page (was Re: -mm merge plans for 2.6.24), Linus Torvalds, (Tue Oct 9, 10:22 pm)
Re: remove zero_page (was Re: -mm merge plans for 2.6.24), Hugh Dickins, (Wed Oct 10, 12:06 am)
Re: remove zero_page (was Re: -mm merge plans for 2.6.24), Linus Torvalds, (Wed Oct 10, 1:20 am)
Re: remove zero_page (was Re: -mm merge plans for 2.6.24), Linus Torvalds, (Wed Oct 10, 11:04 am)
Re: remove zero_page (was Re: -mm merge plans for 2.6.24), Linus Torvalds, (Tue Oct 9, 11:06 pm)
wibbling over the cpuset shed domain connnection, Paul Jackson, (Mon Oct 1, 5:34 pm)
Re: wibbling over the cpuset shed domain connnection, Nick Piggin, (Tue Oct 2, 8:36 am)
Re: wibbling over the cpuset shed domain connnection, Paul Jackson, (Wed Oct 3, 1:21 am)
Re: wibbling over the cpuset shed domain connnection, Nick Piggin, (Tue Oct 2, 9:12 am)
Re: wibbling over the cpuset shed domain connnection, Paul Jackson, (Wed Oct 3, 3:00 am)
Re: wibbling over the cpuset shed domain connnection, Andrew Morton, (Wed Oct 3, 6:57 am)
per BDI dirty limit (was Re: -mm merge plans for 2.6.24), Peter Zijlstra, (Tue Oct 2, 4:17 am)
Re: per BDI dirty limit (was Re: -mm merge plans for 2.6.24), Martin Knoblauch, (Wed Oct 3, 7:00 am)
Re: per BDI dirty limit (was Re: -mm merge plans for 2.6.24), Peter Zijlstra, (Fri Oct 26, 10:48 am)
Re: per BDI dirty limit (was Re: -mm merge plans for 2.6.24), Trond Myklebust, (Fri Oct 26, 12:37 pm)
Re: per BDI dirty limit (was Re: -mm merge plans for 2.6.24), Peter Zijlstra, (Fri Dec 14, 10:50 am)
Re: per BDI dirty limit (was Re: -mm merge plans for 2.6.24), Miklos Szeredi, (Fri Dec 14, 11:14 am)
Re: per BDI dirty limit (was Re: -mm merge plans for 2.6.24), Peter Zijlstra, (Fri Dec 14, 11:54 am)
Re: per BDI dirty limit (was Re: -mm merge plans for 2.6.24), Miklos Szeredi, (Fri Oct 26, 11:06 am)
Re: per BDI dirty limit (was Re: -mm merge plans for 2.6.24), Peter Zijlstra, (Fri Oct 26, 11:22 am)
Re: per BDI dirty limit (was Re: -mm merge plans for 2.6.24), Peter Zijlstra, (Fri Oct 26, 11:33 am)
[PATCH] mm: sysfs: expose the BDI object in sysfs, Peter Zijlstra, (Fri Nov 2, 10:59 am)
Re: [PATCH] mm: sysfs: expose the BDI object in sysfs, Kay Sievers, (Fri Nov 2, 11:13 am)
Re: per BDI dirty limit (was Re: -mm merge plans for 2.6.24), Peter Zijlstra, (Sat Oct 27, 12:07 pm)