From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from psmtp.com (na3sys010amx105.postini.com [74.125.245.105]) by kanga.kvack.org (Postfix) with SMTP id E554D6B0009 for ; Wed, 23 Jan 2013 20:30:01 -0500 (EST) Received: by mail-pa0-f54.google.com with SMTP id bi5so5167046pad.27 for ; Wed, 23 Jan 2013 17:30:01 -0800 (PST) From: Michel Lespinasse Subject: [PATCH 2/8] mm: use vm_unmapped_area() on alpha architecture Date: Wed, 23 Jan 2013 17:29:45 -0800 Message-Id: <1358990991-21316-3-git-send-email-walken@google.com> In-Reply-To: <1358990991-21316-1-git-send-email-walken@google.com> References: <1358990991-21316-1-git-send-email-walken@google.com> Sender: owner-linux-mm@kvack.org List-ID: To: Benjamin Herrenschmidt , Paul Mackerras , "James E.J. Bottomley" , Helge Deller , Richard Henderson , Ivan Kokshaysky , Matt Turner , David Howells , Tony Luck , Fenghua Yu 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 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 Acked-by: Rik van Riel --- 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 -- 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