From mboxrd@z Thu Jan 1 00:00:00 1970 From: Michel Lespinasse 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> References: <1357694895-520-1-git-send-email-walken@google.com> Return-path: DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=20120113; h=x-received:from:to:cc:subject:date:message-id:x-mailer:in-reply-to :references; bh=m8BhLQt09z/FIiDqu8x1NEjL2ZCS/TnXPYNPNj+0qyc=; b=Pbv9DeD/S79iRbegg+D14tCm7krsi5TLsptlLWCqhuGM0o0B0o/eittiwuDsIKQvft BHz21T7x4kWyAUFRlKy4EV1Lme/0X6h63tOB8wIcPYEunIre0om04Qz2RsURCYnHcco7 RbBD3+2FXd5Cvj1n29JDkmsSm334SoEOmZMIdkldQLyDiPOZxG5IyZM1uB9qw9G+oTG9 DzXHdPiqqnuDZKxAiahrBgV+7hKh4sHf0/sBi29A4gN4ufs/AyWbTsAJ2sDzUaisSzgW 4/W3ISojCRAGQMrKrCXA2tx0t9KtNcYxdQKWtk6dfOMH88gpAetXKXGGUbh4/Oa3Kt60 ywpw== In-Reply-To: <1357694895-520-1-git-send-email-walken@google.com> Sender: owner-linux-mm@kvack.org List-ID: MIME-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit 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 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 -- 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