Re: [GIT PULL] paravirt_ops and xen updates for 2.6.24

Previous thread: [patch] sched: fix improper load balance across sched domain by Ken Chen on Tuesday, October 16, 2007 - 3:07 pm. (4 messages)

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To: Linus Torvalds <torvalds@...>
Cc: Linux Kernel Mailing List <linux-kernel@...>
Date: Tuesday, October 16, 2007 - 3:13 pm

Hi Linus,

Please pull:

ssh://master.kernel.org/pub/scm/linux/kernel/git/jeremy/xen.git xen-upstream

This contains updates for arch/x86 paravirt_ops and Xen.

A quick overview of the patchset:

paravirt_ops:
Remove the monolithic paravirt_ops structure, and replace it with
smaller structures of related functions. Also, clean up the handling
of lazy mode to make it easier to implement.

x86/mm/init.c: remove a chunk of dead code

Xen:
- remove duplicate includes
- yield if the target vcpu of an IPI is not currently running
- add post-batch callbacks for multicalls [*]
- deal with unpinning pagetables when another vcpu still
has a cr3 reference [*]
- deal with split ptelocks by pinning each pte page
separately under lock
- determine the kernel/hypervisor address split dynamically
- use the right arg structure for register_vcpu_info [*]
- add extra debugging output for failed multicalls

XFS:
- eagerly unmap vmapped areas to avoid confict with Xen [*]

[*] bugfix needed for 2.6.23. I've also cc:d them to stable@kernel.org

Diffstat:
arch/x86/kernel/alternative.c | 4
arch/x86/kernel/asm-offsets_32.c | 14
arch/x86/kernel/entry_32.S | 2
arch/x86/kernel/paravirt_32.c | 234 ++++++++-----
arch/x86/kernel/vmi_32.c | 211 ++++++------
arch/x86/mm/init_32.c | 22 -
arch/x86/xen/enlighten.c | 295 +++++++++-------
arch/x86/xen/mmu.c | 149 ++++++--
arch/x86/xen/multicalls.c | 52 ++
arch/x86/xen/multicalls.h | 5
arch/x86/xen/smp.c | 14
arch/x86/xen/time.c | 6
arch/x86/xen/xen-ops.h | 10
drivers/char/hvc_lguest.c | 2
drivers/lguest/core.c | 6
drivers/lguest/lguest.c | 154 ++++----
drivers/lguest/lguest_bus.c | 2
fs/xfs/linux-2.6/xfs_buf.c | 13
include/asm-x86/pa...

To: Linus Torvalds <torvalds@...>
Cc: Linux Kernel Mailing List <linux-kernel@...>
Date: Wednesday, October 17, 2007 - 1:55 pm

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To: Jeremy Fitzhardinge <jeremy@...>
Cc: Linus Torvalds <torvalds@...>, Linux Kernel Mailing List <linux-kernel@...>, Thomas Gleixner <tglx@...>, Andrew Morton <akpm@...>
Date: Wednesday, October 17, 2007 - 2:06 pm

hm, could we do the arch/x86 changes via the arch/x86 tree instead?
We've got about a 100 patches pending there now, under QA, preparing
them for pushout. Will check your paravirt patches too, ok?

Ingo
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To: Ingo Molnar <mingo@...>
Cc: Linus Torvalds <torvalds@...>, Linux Kernel Mailing List <linux-kernel@...>, Thomas Gleixner <tglx@...>, Andrew Morton <akpm@...>
Date: Wednesday, October 17, 2007 - 2:28 pm

Yep, that's fine.

J

-

To: Jeremy Fitzhardinge <jeremy@...>
Cc: Ingo Molnar <mingo@...>, Linus Torvalds <torvalds@...>, Linux Kernel Mailing List <linux-kernel@...>, Andrew Morton <akpm@...>
Date: Wednesday, October 17, 2007 - 4:15 pm

I just pulled your tree on top of my tip and there are no conflicts. I
checked the diffs and there is nothing, which is conflicting with our
backlogs.

Linus, please go ahead and pull it yourself.

Thanks,

tglx
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To: Thomas Gleixner <tglx@...>
Cc: Jeremy Fitzhardinge <jeremy@...>, Ingo Molnar <mingo@...>, Linux Kernel Mailing List <linux-kernel@...>, Andrew Morton <akpm@...>
Date: Wednesday, October 17, 2007 - 4:27 pm

Heh. I had already done so.

Sometimes I'm tardy and miss things for weeks and need prodding, and
sometimes I pull almost before you've sent the "please pull" message.

I'm unpredictable. Or keeping you on your toes. Or incompetent. Pick
whatever suits your mood ;)

Linus
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To: Ingo Molnar <mingo@...>
Cc: Jeremy Fitzhardinge <jeremy@...>, Linus Torvalds <torvalds@...>, Linux Kernel Mailing List <linux-kernel@...>, Andrew Morton <akpm@...>
Date: Wednesday, October 17, 2007 - 2:21 pm

Yeah, I'm fixing merge conflicts the third time today :)

tglx
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