From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from psmtp.com (na3sys010amx116.postini.com [74.125.245.116]) by kanga.kvack.org (Postfix) with SMTP id A8FE76B003B for ; Tue, 27 Aug 2013 05:39:15 -0400 (EDT) From: Tang Chen Subject: [PATCH 04/11] memblock: Introduce memblock_set_current_limit_low() to set lower limit of memblock. Date: Tue, 27 Aug 2013 17:37:41 +0800 Message-Id: <1377596268-31552-5-git-send-email-tangchen@cn.fujitsu.com> In-Reply-To: <1377596268-31552-1-git-send-email-tangchen@cn.fujitsu.com> References: <1377596268-31552-1-git-send-email-tangchen@cn.fujitsu.com> Sender: owner-linux-mm@kvack.org List-ID: To: rjw@sisk.pl, lenb@kernel.org, tglx@linutronix.de, mingo@elte.hu, hpa@zytor.com, akpm@linux-foundation.org, tj@kernel.org, trenn@suse.de, yinghai@kernel.org, jiang.liu@huawei.com, wency@cn.fujitsu.com, laijs@cn.fujitsu.com, isimatu.yasuaki@jp.fujitsu.com, izumi.taku@jp.fujitsu.com, mgorman@suse.de, minchan@kernel.org, mina86@mina86.com, gong.chen@linux.intel.com, vasilis.liaskovitis@profitbricks.com, lwoodman@redhat.com, riel@redhat.com, jweiner@redhat.com, prarit@redhat.com, zhangyanfei@cn.fujitsu.com Cc: x86@kernel.org, linux-doc@vger.kernel.org, linux-kernel@vger.kernel.org, linux-mm@kvack.org, linux-acpi@vger.kernel.org Corresponding to memblock_set_current_limit_high(), we introduce memblock_set_current_limit_low() to set the lowest limit for memblock. Signed-off-by: Tang Chen Reviewed-by: Zhang Yanfei --- include/linux/memblock.h | 9 ++++++++- mm/memblock.c | 5 +++++ 2 files changed, 13 insertions(+), 1 deletions(-) diff --git a/include/linux/memblock.h b/include/linux/memblock.h index 40eb18e..cabd685 100644 --- a/include/linux/memblock.h +++ b/include/linux/memblock.h @@ -174,6 +174,14 @@ static inline void memblock_dump_all(void) } /** + * memblock_set_current_limit_low - Set the current allocation lower limit to + * allow limiting allocations to what is currently + * accessible during boot + * @limit: New lower limit value (physical address) + */ +void memblock_set_current_limit_low(phys_addr_t limit); + +/** * memblock_set_current_limit_high - Set the current allocation upper limit to * allow limiting allocations to what is currently * accessible during boot @@ -181,7 +189,6 @@ static inline void memblock_dump_all(void) */ void memblock_set_current_limit_high(phys_addr_t limit); - /* * pfn conversion functions * diff --git a/mm/memblock.c b/mm/memblock.c index 0dd5387..54c1c2e 100644 --- a/mm/memblock.c +++ b/mm/memblock.c @@ -989,6 +989,11 @@ void __init_memblock memblock_trim_memory(phys_addr_t align) } } +void __init_memblock memblock_set_current_limit_low(phys_addr_t limit) +{ + memblock.current_limit_low = limit; +} + void __init_memblock memblock_set_current_limit_high(phys_addr_t limit) { memblock.current_limit_high = limit; -- 1.7.1 -- To unsubscribe, send a message with 'unsubscribe linux-mm' in the body to majordomo@kvack.org. For more info on Linux MM, see: http://www.linux-mm.org/ . Don't email: email@kvack.org