linux-kernel - Re: [PATCH 11/13] BC: vmrss (preparations)

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Message-ID: <44FED43B.8050301@sw.ru>
Date:	Wed, 06 Sep 2006 17:59:23 +0400
From:	Kirill Korotaev <dev@...ru>
To:	Cedric Le Goater <clg@...ibm.com>
CC:	Andrew Morton <akpm@...l.org>,
	Linux Kernel Mailing List <linux-kernel@...r.kernel.org>,
	Alan Cox <alan@...rguk.ukuu.org.uk>,
	Christoph Hellwig <hch@...radead.org>,
	Pavel Emelianov <xemul@...nvz.org>,
	Andrey Savochkin <saw@...ru>, devel@...nvz.org,
	Rik van Riel <riel@...hat.com>, Andi Kleen <ak@...e.de>,
	Oleg Nesterov <oleg@...sign.ru>,
	Alexey Dobriyan <adobriyan@...l.ru>,
	Matt Helsley <matthltc@...ibm.com>,
	CKRM-Tech <ckrm-tech@...ts.sourceforge.net>,
	Hugh Dickins <hugh@...itas.com>
Subject: Re: [PATCH 11/13] BC: vmrss (preparations)

Thanks a lot!!!

> Kirill Korotaev wrote:
> 
> <snip>
> 
>>--- ./include/bc/beancounter.h.bcvmrssprep    2006-09-05
>>13:17:50.000000000 +0400
>>+++ ./include/bc/beancounter.h    2006-09-05 13:44:33.000000000 +0400
>>@@ -45,6 +45,13 @@ struct bc_resource_parm {
>>#define BC_MAXVALUE    LONG_MAX
>>
>>/*
>>+ * This magic is used to distinuish user beancounter and pages beancounter
>>+ * in struct page. page_ub and page_bc are placed in union and MAGIC
>>+ * ensures us that we don't use pbc as ubc in bc_page_uncharge().
>>+ */
>>+#define BC_MAGIC                0x62756275UL
>>+
>>+/*
>> *    Resource management structures
>> * Serialization issues:
>> *   beancounter list management is protected via bc_hash_lock
>>@@ -54,11 +61,13 @@ struct bc_resource_parm {
>> */
>>
>>struct beancounter {
>>+    unsigned long        bc_magic;
>>    atomic_t        bc_refcount;
>>    spinlock_t        bc_lock;
>>    bcid_t            bc_id;
>>    struct hlist_node    hash;
>>
>>+    unsigned long        unused_privvmpages;
>>    /* resources statistics and settings */
>>    struct bc_resource_parm    bc_parms[BC_RESOURCES];
>>};
>>@@ -74,6 +83,8 @@ enum bc_severity { BC_BARRIER, BC_LIMIT,
>>
>>#ifdef CONFIG_BEANCOUNTERS
>>
>>+extern unsigned int nr_beancounters = 1;
>>+
> 
> 
> my gcc doesn't like this one ...
> 
> regards,
> 
> C.
> 
> Signed-off-by: Cedric Le Goater <clg@...ibm.com>
> 
> ---
>  include/bc/beancounter.h |    2 +-
>  kernel/bc/beancounter.c  |    2 +-
>  2 files changed, 2 insertions(+), 2 deletions(-)
> 
> Index: 2.6.18-rc5-mm1/include/bc/beancounter.h
> ===================================================================
> --- 2.6.18-rc5-mm1.orig/include/bc/beancounter.h
> +++ 2.6.18-rc5-mm1/include/bc/beancounter.h
> @@ -86,7 +86,7 @@ enum bc_severity { BC_BARRIER, BC_LIMIT,
> 
>  #ifdef CONFIG_BEANCOUNTERS
> 
> -extern unsigned int nr_beancounters = 1;
> +extern unsigned int nr_beancounters;
> 
>  /*
>   * These functions tune minheld and maxheld values for a given
> Index: 2.6.18-rc5-mm1/kernel/bc/beancounter.c
> ===================================================================
> --- 2.6.18-rc5-mm1.orig/kernel/bc/beancounter.c
> +++ 2.6.18-rc5-mm1/kernel/bc/beancounter.c
> @@ -20,7 +20,7 @@ static void init_beancounter_struct(stru
> 
>  struct beancounter init_bc;
> 
> -unsigned int nr_beancounters;
> +unsigned int nr_beancounters = 1;
> 
>  const char *bc_rnames[] = {
>  	"kmemsize",	/* 0 */
> 

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