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From: "Jan Beulich" <JBeulich@suse.com>
To: David Vrabel <david.vrabel@citrix.com>,
	Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
Cc: "xen-devel@lists.xensource.com" <xen-devel@lists.xensource.com>
Subject: Re: [PATCH] mm: sync vmalloc address space page tables in alloc_vm_area()
Date: Mon, 28 Nov 2011 09:36:10 +0000	[thread overview]
Message-ID: <4ED3641A0200007800063991@nat28.tlf.novell.com> (raw)
In-Reply-To: <20111107203613.GA6546@phenom.dumpdata.com>

>>> On 07.11.11 at 21:36, Konrad Rzeszutek Wilk <konrad.wilk@oracle.com> wrote:
> Patch included as attachment for easier review..

I just noticed that this patch made it upstream meanwhile, and that I
should have paid more attention earlier: Once again this adds x86
specific bits to (supposedly) architecture independent Xen code
(lookup_address(), use of GNTMAP_contains_pte). Unless everyone
agrees that x86 is going to remain the only architecture Xen will support
going forward (no ia64, no ARM, nothing else), patches doing so (at
least outside proper #ifdef-s or alike) should really be rejected.

Besides that, the patch also appears to close the road to running
backends in HVM - use of GNTMAP_contains_pte isn't permitted for
paging_mode_external() guests, so it's even a step backwards for
x86.

Jan

  parent reply	other threads:[~2011-11-28  9:36 UTC|newest]

Thread overview: 54+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2011-09-01 11:51 [PATCH] mm: sync vmalloc address space page tables in alloc_vm_area() David Vrabel
2011-09-01 16:11 ` [Revert] " Konrad Rzeszutek Wilk
2011-09-01 16:11   ` Konrad Rzeszutek Wilk
2011-09-01 20:37   ` Jeremy Fitzhardinge
2011-09-01 20:37     ` Jeremy Fitzhardinge
2011-09-01 21:17     ` Andrew Morton
2011-09-01 21:17       ` Andrew Morton
2011-09-02 11:39       ` David Vrabel
2011-09-02 11:39         ` David Vrabel
2011-09-02 11:39         ` David Vrabel
2011-09-02 22:32         ` Andrew Morton
2011-09-02 22:32           ` Andrew Morton
2011-09-02 23:04           ` Jeremy Fitzhardinge
2011-09-02 23:04             ` Jeremy Fitzhardinge
2011-09-06 16:35           ` [Xen-devel] " Konrad Rzeszutek Wilk
2011-09-06 16:35             ` Konrad Rzeszutek Wilk
2011-11-05 13:38             ` Konrad Rzeszutek Wilk
2011-11-05 13:38               ` Konrad Rzeszutek Wilk
2011-11-05 13:38               ` Konrad Rzeszutek Wilk
2011-11-07 20:36               ` Konrad Rzeszutek Wilk
2011-11-07 20:36                 ` Konrad Rzeszutek Wilk
2011-11-08 23:01                 ` Andrew Morton
2011-11-08 23:01                   ` Andrew Morton
2011-11-08 23:31                   ` Konrad Rzeszutek Wilk
2011-11-08 23:31                     ` Konrad Rzeszutek Wilk
2011-11-08 23:36                     ` Andrew Morton
2011-11-08 23:36                       ` Andrew Morton
2011-11-28  9:36                 ` Jan Beulich [this message]
2011-11-28 10:19                   ` Ian Campbell
2011-11-28 11:36                     ` David Vrabel
2011-11-28 11:48                       ` Ian Campbell
2011-11-28 15:20                       ` Konrad Rzeszutek Wilk
2011-11-28 16:48                         ` [PATCH 00/12] HVM backends and gnt/event fixups Daniel De Graaf
2011-11-28 16:49                           ` [PATCH 01/12] xenbus: Support HVM backends Daniel De Graaf
2011-12-14 19:03                             ` Konrad Rzeszutek Wilk
2011-12-14 19:53                               ` Daniel De Graaf
2011-11-28 16:49                           ` [PATCH 02/12] xenbus: Use grant-table wrapper functions Daniel De Graaf
2011-11-28 16:49                           ` [PATCH 03/12] xen/grant-table: Support mappings required by blkback Daniel De Graaf
2011-11-28 16:49                           ` [PATCH 04/12] xen/blkback: use grant-table.c hypercall wrappers Daniel De Graaf
2011-11-28 16:49                           ` [PATCH 05/12] xen/netback: Enable netback on HVM guests Daniel De Graaf
2011-11-28 16:49                           ` [PATCH 06/12] xen/blkback: Enable blkback " Daniel De Graaf
2011-11-28 16:49                           ` [PATCH 07/12] xen/event: Add reference counting to event channels Daniel De Graaf
2011-12-14 18:56                             ` Konrad Rzeszutek Wilk
2011-12-14 19:52                               ` Daniel De Graaf
2011-12-16 19:35                                 ` Konrad Rzeszutek Wilk
2011-11-28 16:49                           ` [PATCH 08/12] xen/gntalloc: Change gref_lock to a mutex Daniel De Graaf
2011-11-28 16:49                           ` [PATCH 09/12] xen/gnt{dev, alloc}: reserve event channels for notify Daniel De Graaf
2011-11-28 16:49                           ` [PATCH 10/12] xen/events: prevent calling evtchn_get on invalid channels Daniel De Graaf
2011-11-28 16:49                           ` [PATCH 11/12] xen/gntalloc: release grant references on page free Daniel De Graaf
2011-11-28 16:49                           ` [PATCH 12/12] xen/gntalloc: fix reference counts on multi-page mappings Daniel De Graaf
2011-09-02  7:22     ` [Xen-devel] Re: [Revert] Re: [PATCH] mm: sync vmalloc address space page tables in alloc_vm_area() Ian Campbell
2011-09-02  7:22       ` Ian Campbell
2011-09-02  7:31       ` Keir Fraser
2011-09-02  7:31         ` Keir Fraser

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