From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1756333Ab3AIB2f (ORCPT ); Tue, 8 Jan 2013 20:28:35 -0500 Received: from mail-pb0-f49.google.com ([209.85.160.49]:32889 "EHLO mail-pb0-f49.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1756297Ab3AIB2b (ORCPT ); Tue, 8 Jan 2013 20:28:31 -0500 From: Michel Lespinasse To: Rik van Riel , Benjamin Herrenschmidt , "James E.J. Bottomley" , Matt Turner , David Howells , Tony Luck Cc: linux-mm@kvack.org, linux-kernel@vger.kernel.org, Andrew Morton , linuxppc-dev@lists.ozlabs.org, linux-parisc@vger.kernel.org, linux-alpha@vger.kernel.org, linux-ia64@vger.kernel.org Subject: [PATCH 2/8] mm: use vm_unmapped_area() on alpha architecture Date: Tue, 8 Jan 2013 17:28:09 -0800 Message-Id: <1357694895-520-3-git-send-email-walken@google.com> X-Mailer: git-send-email 1.7.7.3 In-Reply-To: <1357694895-520-1-git-send-email-walken@google.com> References: <1357694895-520-1-git-send-email-walken@google.com> Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Update the alpha arch_get_unmapped_area function to make use of vm_unmapped_area() instead of implementing a brute force search. Signed-off-by: Michel Lespinasse --- arch/alpha/kernel/osf_sys.c | 20 +++++++++----------- 1 files changed, 9 insertions(+), 11 deletions(-) diff --git a/arch/alpha/kernel/osf_sys.c b/arch/alpha/kernel/osf_sys.c index 14db93e4c8a8..ba707e23ef37 100644 --- a/arch/alpha/kernel/osf_sys.c +++ b/arch/alpha/kernel/osf_sys.c @@ -1298,17 +1298,15 @@ static unsigned long arch_get_unmapped_area_1(unsigned long addr, unsigned long len, unsigned long limit) { - struct vm_area_struct *vma = find_vma(current->mm, addr); - - while (1) { - /* At this point: (!vma || addr < vma->vm_end). */ - if (limit - len < addr) - return -ENOMEM; - if (!vma || addr + len <= vma->vm_start) - return addr; - addr = vma->vm_end; - vma = vma->vm_next; - } + struct vm_unmapped_area_info info; + + info.flags = 0; + info.length = len; + info.low_limit = addr; + info.high_limit = limit; + info.align_mask = 0; + info.align_offset = 0; + return vm_unmapped_area(&info); } unsigned long -- 1.7.7.3