[uml-devel] [PATCH 2/2] uml: add missing header

[Paolo 'Blaisorblade' Giarrusso <blaisorblade@ya...>]

From: Paolo 'Blaisorblade' Giarrusso <blaisorblade@...>

We now need to include the new <linux/platform_device.h> explicitly, due to
headers changes.

Signed-off-by: Paolo 'Blaisorblade' Giarrusso <blaisorblade@...>
---

 arch/um/include/net_kern.h |    1 +
 1 files changed, 1 insertions(+), 0 deletions(-)

diff --git a/arch/um/include/net_kern.h b/arch/um/include/net_kern.h
--- a/arch/um/include/net_kern.h
+++ b/arch/um/include/net_kern.h
@@ -10,6 +10,7 @@
 #include "linux/skbuff.h"
 #include "linux/socket.h"
 #include "linux/list.h"
+#include "linux/platform_device.h"
 
 struct uml_net {
 	struct list_head list;

[uml-devel] [PATCH 1/2] uml: build host-binaries with the native host arch again

[Paolo 'Blaisorblade' Giarrusso <blaisorblade@ya...>]

From: Paolo 'Blaisorblade' Giarrusso <blaisorblade@...>

This patch reverts back the changes to HOSTCFLAGS and HOSTLDFLAGS

When we were building complete binaries to get constants (such as ptrace
register layout on stack) from host userspace headers, we needed to make the
arch for building HOST binaries match our one: i.e. on a 64bit system compiling
32bit binaries, we compile 32-bit hostprogs and need, say, 32-bit ncurses. Now
we can revert that - that avoids problem with, say, menuconfig and ncurses, on a
system which can't compile well 32-bit programs.

Signed-off-by: Paolo 'Blaisorblade' Giarrusso <blaisorblade@...>
---

 arch/um/Makefile-i386 |    2 --
 1 files changed, 0 insertions(+), 2 deletions(-)

diff --git a/arch/um/Makefile-i386 b/arch/um/Makefile-i386
--- a/arch/um/Makefile-i386
+++ b/arch/um/Makefile-i386
@@ -17,8 +17,6 @@ ifeq ("$(origin SUBARCH)", "command line
 ifneq ("$(shell uname -m | sed -e s/i.86/i386/)", "$(SUBARCH)")
 CFLAGS			+= $(call cc-option,-m32)
 USER_CFLAGS		+= $(call cc-option,-m32)
-HOSTCFLAGS		+= $(call cc-option,-m32)
-HOSTLDFLAGS		+= $(call cc-option,-m32)
 AFLAGS			+= $(call cc-option,-m32)
 LINK-y			+= $(call cc-option,-m32)
 UML_OBJCOPYFLAGS	+= -F $(ELF_FORMAT)

[uml-devel] [PATCH] uml: fix hardcoded ZONE_* constants in zone setup

[Paolo 'Blaisorblade' Giarrusso <blaisorblade@ya...>]

From: Paolo 'Blaisorblade' Giarrusso <blaisorblade@...>

Remove usage of hardcoded constants in paging_init().

By chance I spotted a bug in zones_setup involving a change to ZONE_* constants,
due to the ZONE_DMA32 patch from Andi Kleen (which is in -mm). So, possibly,
instead of zones_size[2] you will find zones_size[3] in the code, but that
change is wrong and this patch is still correct.

Signed-off-by: Paolo 'Blaisorblade' Giarrusso <blaisorblade@...>
---

 arch/um/kernel/mem.c |    4 ++--
 1 files changed, 2 insertions(+), 2 deletions(-)

diff --git a/arch/um/kernel/mem.c b/arch/um/kernel/mem.c
--- a/arch/um/kernel/mem.c
+++ b/arch/um/kernel/mem.c
@@ -234,8 +234,8 @@ void paging_init(void)
 	empty_bad_page = (unsigned long *) alloc_bootmem_low_pages(PAGE_SIZE);
 	for(i=0;i<sizeof(zones_size)/sizeof(zones_size[0]);i++) 
 		zones_size[i] = 0;
-	zones_size[0] = (end_iomem >> PAGE_SHIFT) - (uml_physmem >> PAGE_SHIFT);
-	zones_size[2] = highmem >> PAGE_SHIFT;
+	zones_size[ZONE_DMA] = (end_iomem >> PAGE_SHIFT) - (uml_physmem >> PAGE_SHIFT);
+	zones_size[ZONE_HIGHMEM] = highmem >> PAGE_SHIFT;
 	free_area_init(zones_size);
 
 	/*

Re: [uml-devel] [PATCH 9/10] UML - Big memory fixes

[Jeff Dike <jdike@ad...>]

On Tue, Nov 01, 2005 at 04:11:04PM +0100, Blaisorblade wrote:
> I think this came up because there's (in -mm) Andi Kleen created a new zone 
> (ZONE_DMA32) for devices using 32-bit only DMA - but it seems it's not in 
> mainline).  (I don't know if that patch is in -mm actually, but I guess it 
> from this patch content).

Correct, nice spotting.

This chunk leaked from my -mm tree accidentally, so it is appropriate for -mm,
but it should be its own separate -mm-only patch.

				Jeff

Re: [uml-devel] [PATCH 9/10] UML - Big memory fixes

[Blaisorblade <blaisorblade@ya...>]

On Monday 31 October 2005 05:39, Jeff Dike wrote:
> A number of fixes to improve behavior when large physical memory sizes
> are specified:
>     libc files need -D_FILE_OFFSET_BITS=64 because there are unavoidable
> uses of non-64 interfaces in libc
>     some %d need to be %u
>
> Signed-off-by: Jeff Dike <jdike@...>

Jeff, please always make patch and ChangeLog match. Yes, it matters - when it 
doesn't happen there's always something bad going on.

> Index: linux-2.6.14/arch/um/kernel/mem.c
> ===================================================================
> --- linux-2.6.14.orig/arch/um/kernel/mem.c	2005-10-28 12:58:12.000000000
> -0400 +++ linux-2.6.14/arch/um/kernel/mem.c	2005-10-30 19:29:04.000000000
> -0500 @@ -235,7 +235,7 @@ void paging_init(void)
>  	for(i=0;i<sizeof(zones_size)/sizeof(zones_size[0]);i++)
>  		zones_size[i] = 0;
>  	zones_size[0] = (end_iomem >> PAGE_SHIFT) - (uml_physmem >> PAGE_SHIFT);
> -	zones_size[2] = highmem >> PAGE_SHIFT;
> +	zones_size[3] = highmem >> PAGE_SHIFT;
>  	free_area_init(zones_size);

What's this? It's IMHO invalid. free_area_init() intereprets these values with 
include/linux/mmzone.h: ZONE_* constants.

Why those are not used here it's a nice question.

I think this came up because there's (in -mm) Andi Kleen created a new zone 
(ZONE_DMA32) for devices using 32-bit only DMA - but it seems it's not in 
mainline).  (I don't know if that patch is in -mm actually, but I guess it 
from this patch content).

Actually, since MAX_NR_ZONES is 3, and we are assigning to zones_size[3],
we're corrupting data:

        unsigned long zones_size[MAX_NR_ZONES], vaddr;

Don't drop the patch however, I'm fixing all this up.
-- 
Inform me of my mistakes, so I can keep imitating Homer Simpson's "Doh!".
Paolo Giarrusso, aka Blaisorblade (Skype ID "PaoloGiarrusso", ICQ 215621894)
http://www.user-mode-linux.org/~blaisorblade

		
___________________________________ 
Yahoo! Messenger: chiamate gratuite in tutto il mondo 
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Re: [uml-devel] [PATCH 8/10] UML - Maintain own LDT entries

[Rob Landley <rob@la...>]

Thumbs up.  Works for me on Ubuntu (still "Horny Hedgehog", haven't installed 
flatulent badger yet...)

Rob

[uml-devel] Update your informations

[<Service@pa...>]

<html>
<body>
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