Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1754354Ab2KQDk7 (ORCPT ); Fri, 16 Nov 2012 22:40:59 -0500 Received: from aserp1040.oracle.com ([141.146.126.69]:27556 "EHLO aserp1040.oracle.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1754290Ab2KQDk4 (ORCPT ); Fri, 16 Nov 2012 22:40:56 -0500 From: Yinghai Lu To: Thomas Gleixner , Ingo Molnar , "H. Peter Anvin" , Jacob Shin Cc: Andrew Morton , Stefano Stabellini , Konrad Rzeszutek Wilk , linux-kernel@vger.kernel.org, Yinghai Lu Subject: [PATCH v8 46/46] x86, mm: Let "memmap=" take more entries one time Date: Fri, 16 Nov 2012 19:39:23 -0800 Message-Id: <1353123563-3103-47-git-send-email-yinghai@kernel.org> X-Mailer: git-send-email 1.7.7 In-Reply-To: <1353123563-3103-1-git-send-email-yinghai@kernel.org> References: <1353123563-3103-1-git-send-email-yinghai@kernel.org> X-Source-IP: acsinet21.oracle.com [141.146.126.237] Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 1495 Lines: 56 Current "memmap=" only can take one entry every time. when we have more entries, we have to use memmap= for each of them. For pxe booting, we have command line length limitation, those extra "memmap=" would waste too much space. This patch make memmap= could take several entries one time, and those entries will be split with ',' Signed-off-by: Yinghai Lu --- arch/x86/kernel/e820.c | 16 +++++++++++++++- 1 files changed, 15 insertions(+), 1 deletions(-) diff --git a/arch/x86/kernel/e820.c b/arch/x86/kernel/e820.c index df06ade..d32abea 100644 --- a/arch/x86/kernel/e820.c +++ b/arch/x86/kernel/e820.c @@ -835,7 +835,7 @@ static int __init parse_memopt(char *p) } early_param("mem", parse_memopt); -static int __init parse_memmap_opt(char *p) +static int __init parse_memmap_one(char *p) { char *oldp; u64 start_at, mem_size; @@ -877,6 +877,20 @@ static int __init parse_memmap_opt(char *p) return *p == '\0' ? 0 : -EINVAL; } +static int __init parse_memmap_opt(char *str) +{ + while (str) { + char *k = strchr(str, ','); + + if (k) + *k++ = 0; + + parse_memmap_one(str); + str = k; + } + + return 0; +} early_param("memmap", parse_memmap_opt); void __init finish_e820_parsing(void) -- 1.7.7 -- 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/