Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1759054Ab0FVR3A (ORCPT ); Tue, 22 Jun 2010 13:29:00 -0400 Received: from rcsinet10.oracle.com ([148.87.113.121]:33247 "EHLO rcsinet10.oracle.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1759023Ab0FVR24 (ORCPT ); Tue, 22 Jun 2010 13:28:56 -0400 From: Yinghai Lu To: Ingo Molnar , Thomas Gleixner , "H. Peter Anvin" , Andrew Morton , David Miller , Benjamin Herrenschmidt Cc: Linus Torvalds , Johannes Weiner , linux-kernel@vger.kernel.org, linux-arch@vger.kernel.org, Yinghai Lu Subject: [PATCH 17/25] x86, lmb: Add lmb_memory_in_range() Date: Tue, 22 Jun 2010 10:26:46 -0700 Message-Id: <1277227614-11581-18-git-send-email-yinghai@kernel.org> X-Mailer: git-send-email 1.6.4.2 In-Reply-To: <1277227614-11581-1-git-send-email-yinghai@kernel.org> References: <1277227614-11581-1-git-send-email-yinghai@kernel.org> X-Auth-Type: Internal IP X-Source-IP: acsinet15.oracle.com [141.146.126.227] X-CT-RefId: str=0001.0A090209.4C20F2B7.008A,ss=1,fgs=0 Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 2585 Lines: 82 It will return memory size in specified range according to lmb.memory.region Try to share some code with lmb_free_memory_in_range() by passing get_free to __lmb_memory_in_range(). -v2: Ben want _in_range in the name instead of size Signed-off-by: Yinghai Lu --- arch/x86/include/asm/lmb.h | 1 + arch/x86/mm/lmb.c | 18 +++++++++++++++++- 2 files changed, 18 insertions(+), 1 deletions(-) diff --git a/arch/x86/include/asm/lmb.h b/arch/x86/include/asm/lmb.h index 3a304f8..749c224 100644 --- a/arch/x86/include/asm/lmb.h +++ b/arch/x86/include/asm/lmb.h @@ -16,5 +16,6 @@ void lmb_register_active_regions(int nid, unsigned long start_pfn, u64 lmb_hole_size(u64 start, u64 end); u64 lmb_find_in_range_node(int nid, u64 start, u64 end, u64 size, u64 align); u64 lmb_free_memory_in_range(u64 addr, u64 limit); +u64 lmb_memory_in_range(u64 addr, u64 limit); #endif diff --git a/arch/x86/mm/lmb.c b/arch/x86/mm/lmb.c index 991dd55..bd2f60b 100644 --- a/arch/x86/mm/lmb.c +++ b/arch/x86/mm/lmb.c @@ -217,7 +217,7 @@ void __init lmb_to_bootmem(u64 start, u64 end) } #endif -u64 __init lmb_free_memory_in_range(u64 addr, u64 limit) +static u64 __init __lmb_memory_in_range(u64 addr, u64 limit, bool get_free) { int i, count; struct range *range; @@ -246,6 +246,10 @@ u64 __init lmb_free_memory_in_range(u64 addr, u64 limit) } subtract_range(range, count, 0, addr); subtract_range(range, count, limit, -1ULL); + + /* Subtract lmb.reserved.region in range ? */ + if (!get_free) + goto sort_and_count_them; for_each_lmb(reserved, r) { final_start = PFN_DOWN(r->base); final_end = PFN_UP(r->base + r->size); @@ -256,6 +260,8 @@ u64 __init lmb_free_memory_in_range(u64 addr, u64 limit) subtract_range(range, count, final_start, final_end); } + +sort_and_count_them: nr_range = clean_sort_range(range, count); free_size = 0; @@ -265,6 +271,16 @@ u64 __init lmb_free_memory_in_range(u64 addr, u64 limit) return free_size << PAGE_SHIFT; } +u64 __init lmb_free_memory_in_range(u64 addr, u64 limit) +{ + return __lmb_memory_in_range(addr, limit, true); +} + +u64 __init lmb_memory_in_range(u64 addr, u64 limit) +{ + return __lmb_memory_in_range(addr, limit, false); +} + void __init lmb_reserve_range(u64 start, u64 end, char *name) { if (start == end) -- 1.6.4.2 -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/