linux-kernel - Re: [PATCH v3 8/8] powerpc/pseries: Read common partition via pstore

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Message-ID: <51ADAD0E.4010001@linux.vnet.ibm.com>
Date:	Tue, 04 Jun 2013 14:32:06 +0530
From:	Aruna Balakrishnaiah <aruna@...ux.vnet.ibm.com>
To:	Benjamin Herrenschmidt <benh@...nel.crashing.org>
CC:	linuxppc-dev@...abs.org, paulus@...ba.org,
	linux-kernel@...r.kernel.org, jkenisto@...ux.vnet.ibm.com,
	tony.luck@...el.com, ananth@...ibm.com, mahesh@...ux.vnet.ibm.com,
	ccross@...roid.com, anton@...ba.org, cbouatmailru@...il.com,
	keescook@...omium.org
Subject: Re: [PATCH v3 8/8] powerpc/pseries: Read common partition via pstore

On Saturday 01 June 2013 10:22 AM, Benjamin Herrenschmidt wrote:
> On Thu, 2013-04-25 at 15:49 +0530, Aruna Balakrishnaiah wrote:
>
>> diff --git a/fs/pstore/inode.c b/fs/pstore/inode.c
>> index 8d4fb65..88cc050 100644
>> --- a/fs/pstore/inode.c
>> +++ b/fs/pstore/inode.c
>> @@ -330,6 +330,9 @@ int pstore_mkfile(enum pstore_type_id type, char *psname, u64 id, int count,
>>   	case PSTORE_TYPE_PPC_OF:
>>   		sprintf(name, "of-%s-%lld", psname, id);
>>   		break;
> Call this powerpc-ofw-... Does it even contain something we use in Linux
> at all ? Last I looked we only used the common one right ? Also it's
> format afaik is defined in the CHRP bindings so it's not generic OFW
> stuff, hence the powerpc prefix.
>
>> +	case PSTORE_TYPE_PPC_COMMON:
>> +		sprintf(name, "common-%s-%lld", psname, id);
>> +		break;
> Same deal, call that powerpc-common

Sure. Will change it to powerpc prefix.

>>   	case PSTORE_TYPE_UNKNOWN:
>>   		sprintf(name, "unknown-%s-%lld", psname, id);
>>   		break;
>> diff --git a/include/linux/pstore.h b/include/linux/pstore.h
>> index 615dc18..656699f 100644
>> --- a/include/linux/pstore.h
>> +++ b/include/linux/pstore.h
>> @@ -38,6 +38,7 @@ enum pstore_type_id {
>>   	/* PPC64 partition types */
>>   	PSTORE_TYPE_PPC_RTAS	= 4,
>>   	PSTORE_TYPE_PPC_OF	= 5,
>> +	PSTORE_TYPE_PPC_COMMON	= 6,
>>   	PSTORE_TYPE_UNKNOWN	= 255
>>   };
> Do we expose anything else or keep it hidden ?

We are exposing oops, rtas, of-config and common partition of nvram.

> Cheers,
> Ben.
>
>

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