linux-kernel - Re: [PATCH] x86: introduce bootmem

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Message-ID: <49B1697D.60602@kernel.org>
Date:	Fri, 06 Mar 2009 10:20:45 -0800
From:	Yinghai Lu <yinghai@...nel.org>
To:	Ingo Molnar <mingo@...e.hu>
CC:	Thomas Gleixner <tglx@...utronix.de>,
	"H. Peter Anvin" <hpa@...or.com>,
	Andrew Morton <akpm@...ux-foundation.org>,
	Pekka Enberg <penberg@...helsinki.fi>,
	"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH] x86: introduce bootmem_state

Ingo Molnar wrote:
> * Yinghai Lu <yinghai@...nel.org> wrote:
> 
>> Impact: cleanup
>>
>> extend after_bootmem and after_init_bootmem to bootmem_state 
>> and will have BEFORE_BOOTMEM, DURING_BOOTMEM, AFTER_BOOTMEM
> 
> Ok, that indeed makes all these bootstrap initialization details 
> cleaner and more transparent.
> 
>> Signed-off-by: Yinghai Lu <yinghai@...nel.org>
>>
>> ---
>>  arch/x86/kernel/setup.c |    1 +
>>  arch/x86/mm/init.c      |   13 +++++++------
>>  arch/x86/mm/init_32.c   |   28 ++++++++++++++++++++--------
>>  arch/x86/mm/init_64.c   |   33 +++++++++++++++++++--------------
>>  include/linux/mm.h      |    8 ++++++++
>>  5 files changed, 55 insertions(+), 28 deletions(-)
> 
> Note: "git grep after_bootmem" will show you another affected 
> architecture as well.

that is sh, will send patch to them later if needed.

> 
>> +++ linux-2.6/include/linux/mm.h
>> @@ -1067,6 +1067,14 @@ extern void __init mmap_init(void);
>>  extern void show_mem(void);
>>  extern void si_meminfo(struct sysinfo * val);
>>  extern void si_meminfo_node(struct sysinfo *val, int nid);
>> +
>> +enum bootmem_state_t {
>> +	BEFORE_BOOTMEM = 0,
> 
> (nit: =0 is not required. )
some other enum, has it too...
> 
>> +	DURING_BOOTMEM,
>> +	AFTER_BOOTMEM
>> +};
>> +extern enum bootmem_state_t bootmem_state;
> 
> (nit: we put newlines after enum definitions)

ok

YH
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