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From: Vivek Goyal <vgoyal@redhat.com>
To: Simon Horman <horms@verge.net.au>
Cc: linux-ia64@vger.kernel.org, kexec@lists.infradead.org,
	linux-kernel@vger.kernel.org
Subject: Re: [patch 1/3] kdump: use is_kdump_kernel() in sba_init()
Date: Wed, 30 Jul 2008 08:55:22 -0400	[thread overview]
Message-ID: <20080730125522.GA16373@redhat.com> (raw)
In-Reply-To: <20080729231507.GF6370@verge.net.au>

On Wed, Jul 30, 2008 at 09:15:10AM +1000, Simon Horman wrote:
> After recent patches* is_kdump_kernel() should return 1 in the
> case where code is executing in a crashkernel and 0 otherwise.
> It is safe to use outside of CONFIG_CRASH_DUMP.
> 
> * http://lkml.org/lkml/2008/7/28/445
> 
> Signed-off-by: Simon Horman <horms@verge.net.au>
> Acked-by: Vivek Goyal <vgoyal@redhat.com>
> 
> Index: linux-2.6/arch/ia64/hp/common/sba_iommu.c
> ===================================================================
> --- linux-2.6.orig/arch/ia64/hp/common/sba_iommu.c	2008-07-29 10:57:17.000000000 +1000
> +++ linux-2.6/arch/ia64/hp/common/sba_iommu.c	2008-07-29 10:57:51.000000000 +1000
> @@ -2070,14 +2070,13 @@ sba_init(void)
>  	if (!ia64_platform_is("hpzx1") && !ia64_platform_is("hpzx1_swiotlb"))
>  		return 0;
>  
> -#if defined(CONFIG_IA64_GENERIC) && defined(CONFIG_CRASH_DUMP) && \
> -        defined(CONFIG_PROC_FS)
> +#if defined(CONFIG_IA64_GENERIC)
>  	/* If we are booting a kdump kernel, the sba_iommu will
>  	 * cause devices that were not shutdown properly to MCA
>  	 * as soon as they are turned back on.  Our only option for
>  	 * a successful kdump kernel boot is to use the swiotlb.
>  	 */
> -	if (elfcorehdr_addr < ELFCORE_ADDR_MAX) {
> +	if (is_kdump_kernel()) {
>  		if (swiotlb_late_init_with_default_size(64 * (1<<20)) != 0)
>  			panic("Unable to initialize software I/O TLB:"
>  				  " Try machvec=dig boot option");

Looks good to me.

Acked-by: Vivek Goyal <vgoyal@redhat.com>

Thanks
Vivek


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WARNING: multiple messages have this Message-ID (diff)
From: Vivek Goyal <vgoyal@redhat.com>
To: Simon Horman <horms@verge.net.au>
Cc: kexec@lists.infradead.org, linux-ia64@vger.kernel.org,
	linux-kernel@vger.kernel.org
Subject: Re: [patch 1/3] kdump: use is_kdump_kernel() in sba_init()
Date: Wed, 30 Jul 2008 12:55:22 +0000	[thread overview]
Message-ID: <20080730125522.GA16373@redhat.com> (raw)
In-Reply-To: <20080729231507.GF6370@verge.net.au>

On Wed, Jul 30, 2008 at 09:15:10AM +1000, Simon Horman wrote:
> After recent patches* is_kdump_kernel() should return 1 in the
> case where code is executing in a crashkernel and 0 otherwise.
> It is safe to use outside of CONFIG_CRASH_DUMP.
> 
> * http://lkml.org/lkml/2008/7/28/445
> 
> Signed-off-by: Simon Horman <horms@verge.net.au>
> Acked-by: Vivek Goyal <vgoyal@redhat.com>
> 
> Index: linux-2.6/arch/ia64/hp/common/sba_iommu.c
> =================================> --- linux-2.6.orig/arch/ia64/hp/common/sba_iommu.c	2008-07-29 10:57:17.000000000 +1000
> +++ linux-2.6/arch/ia64/hp/common/sba_iommu.c	2008-07-29 10:57:51.000000000 +1000
> @@ -2070,14 +2070,13 @@ sba_init(void)
>  	if (!ia64_platform_is("hpzx1") && !ia64_platform_is("hpzx1_swiotlb"))
>  		return 0;
>  
> -#if defined(CONFIG_IA64_GENERIC) && defined(CONFIG_CRASH_DUMP) && \
> -        defined(CONFIG_PROC_FS)
> +#if defined(CONFIG_IA64_GENERIC)
>  	/* If we are booting a kdump kernel, the sba_iommu will
>  	 * cause devices that were not shutdown properly to MCA
>  	 * as soon as they are turned back on.  Our only option for
>  	 * a successful kdump kernel boot is to use the swiotlb.
>  	 */
> -	if (elfcorehdr_addr < ELFCORE_ADDR_MAX) {
> +	if (is_kdump_kernel()) {
>  		if (swiotlb_late_init_with_default_size(64 * (1<<20)) != 0)
>  			panic("Unable to initialize software I/O TLB:"
>  				  " Try machvec=dig boot option");

Looks good to me.

Acked-by: Vivek Goyal <vgoyal@redhat.com>

Thanks
Vivek


WARNING: multiple messages have this Message-ID (diff)
From: Vivek Goyal <vgoyal@redhat.com>
To: Simon Horman <horms@verge.net.au>
Cc: kexec@lists.infradead.org, linux-ia64@vger.kernel.org,
	linux-kernel@vger.kernel.org
Subject: Re: [patch 1/3] kdump: use is_kdump_kernel() in sba_init()
Date: Wed, 30 Jul 2008 08:55:22 -0400	[thread overview]
Message-ID: <20080730125522.GA16373@redhat.com> (raw)
In-Reply-To: <20080729231507.GF6370@verge.net.au>

On Wed, Jul 30, 2008 at 09:15:10AM +1000, Simon Horman wrote:
> After recent patches* is_kdump_kernel() should return 1 in the
> case where code is executing in a crashkernel and 0 otherwise.
> It is safe to use outside of CONFIG_CRASH_DUMP.
> 
> * http://lkml.org/lkml/2008/7/28/445
> 
> Signed-off-by: Simon Horman <horms@verge.net.au>
> Acked-by: Vivek Goyal <vgoyal@redhat.com>
> 
> Index: linux-2.6/arch/ia64/hp/common/sba_iommu.c
> ===================================================================
> --- linux-2.6.orig/arch/ia64/hp/common/sba_iommu.c	2008-07-29 10:57:17.000000000 +1000
> +++ linux-2.6/arch/ia64/hp/common/sba_iommu.c	2008-07-29 10:57:51.000000000 +1000
> @@ -2070,14 +2070,13 @@ sba_init(void)
>  	if (!ia64_platform_is("hpzx1") && !ia64_platform_is("hpzx1_swiotlb"))
>  		return 0;
>  
> -#if defined(CONFIG_IA64_GENERIC) && defined(CONFIG_CRASH_DUMP) && \
> -        defined(CONFIG_PROC_FS)
> +#if defined(CONFIG_IA64_GENERIC)
>  	/* If we are booting a kdump kernel, the sba_iommu will
>  	 * cause devices that were not shutdown properly to MCA
>  	 * as soon as they are turned back on.  Our only option for
>  	 * a successful kdump kernel boot is to use the swiotlb.
>  	 */
> -	if (elfcorehdr_addr < ELFCORE_ADDR_MAX) {
> +	if (is_kdump_kernel()) {
>  		if (swiotlb_late_init_with_default_size(64 * (1<<20)) != 0)
>  			panic("Unable to initialize software I/O TLB:"
>  				  " Try machvec=dig boot option");

Looks good to me.

Acked-by: Vivek Goyal <vgoyal@redhat.com>

Thanks
Vivek


  reply	other threads:[~2008-07-30 12:55 UTC|newest]

Thread overview: 40+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
     [not found] <20080729081235.293361145@vergenet.net>
2008-07-29  8:12 ` [patch 1/3] kdump: use is_kdump_kernel() in sba_init() Simon Horman
2008-07-29  8:12   ` Simon Horman
2008-07-29 14:51   ` Vivek Goyal
2008-07-29 14:51     ` Vivek Goyal
2008-07-29 22:40     ` Simon Horman
2008-07-29 22:40       ` Simon Horman
2008-07-29 22:40       ` Simon Horman
2008-07-29 23:15   ` Simon Horman
2008-07-29 23:15     ` Simon Horman
2008-07-29 23:15     ` Simon Horman
2008-07-30 12:55     ` Vivek Goyal [this message]
2008-07-30 12:55       ` Vivek Goyal
2008-07-30 12:55       ` Vivek Goyal
2008-07-29  8:12 ` [patch 2/3] kdump: add is_vmcore_usable() and vmcore_unusable() Simon Horman
2008-07-29  8:12   ` Simon Horman
2008-07-29 15:15   ` Vivek Goyal
2008-07-29 15:15     ` Vivek Goyal
2008-07-29 15:15     ` Vivek Goyal
2008-07-29 22:39     ` Simon Horman
2008-07-29 22:39       ` Simon Horman
2008-07-29 22:39       ` Simon Horman
2008-07-29 23:16   ` Simon Horman
2008-07-29 23:16     ` Simon Horman
2008-07-29 23:16     ` Simon Horman
2008-07-29  8:12 ` [patch 3/3] kdump: use is_vmcore_usable() and vmcore_unusable() in reserve_elfcorehdr() Simon Horman
2008-07-29  8:12   ` Simon Horman
2008-07-30 13:01   ` Vivek Goyal
2008-07-30 13:01     ` [patch 3/3] kdump: use is_vmcore_usable() and Vivek Goyal
2008-07-31  0:48     ` [patch 3/3] kdump: use is_vmcore_usable() and vmcore_unusable() in reserve_elfcorehdr() Simon Horman
2008-07-31  0:48       ` Simon Horman
2008-07-31  0:48       ` [patch 3/3] kdump: use is_vmcore_usable() and Simon Horman
2008-07-31 13:21       ` [patch 3/3] kdump: use is_vmcore_usable() and vmcore_unusable() in reserve_elfcorehdr() Vivek Goyal
2008-07-31 13:21         ` Vivek Goyal
2008-07-31 13:21         ` [patch 3/3] kdump: use is_vmcore_usable() and Vivek Goyal
2008-08-01  4:08         ` [patch 3/3] kdump: use is_vmcore_usable() and vmcore_unusable() in reserve_elfcorehdr() Simon Horman
2008-08-01  4:08           ` Simon Horman
2008-08-01  4:08           ` [patch 3/3] kdump: use is_vmcore_usable() and Simon Horman
2008-08-05  7:19           ` [patch 3/3] kdump: use is_vmcore_usable() and vmcore_unusable() in reserve_elfcorehdr() Simon Horman
2008-08-05  7:19             ` Simon Horman
2008-08-05  7:19             ` [patch 3/3] kdump: use is_vmcore_usable() and Simon Horman

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