From patchwork Tue Jan 12 16:12:02 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: "Liam R. Howlett" X-Patchwork-Id: 12013895 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-16.6 required=3.0 tests=BAYES_00,DKIM_INVALID, DKIM_SIGNED,HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_CR_TRAILER,INCLUDES_PATCH, MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS,UNPARSEABLE_RELAY,USER_AGENT_GIT autolearn=ham autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 70720C4332E for ; Tue, 12 Jan 2021 16:15:18 +0000 (UTC) Received: from kanga.kvack.org (kanga.kvack.org [205.233.56.17]) by mail.kernel.org (Postfix) with ESMTP id 132522222B for ; Tue, 12 Jan 2021 16:15:18 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 132522222B Authentication-Results: mail.kernel.org; dmarc=fail (p=none dis=none) header.from=Oracle.com Authentication-Results: mail.kernel.org; spf=pass smtp.mailfrom=owner-linux-mm@kvack.org Received: by kanga.kvack.org (Postfix) id A17218D00C3; Tue, 12 Jan 2021 11:14:05 -0500 (EST) Received: by kanga.kvack.org (Postfix, from userid 40) id 9C7378D00C5; Tue, 12 Jan 2021 11:14:05 -0500 (EST) X-Delivered-To: int-list-linux-mm@kvack.org Received: by kanga.kvack.org (Postfix, from userid 63042) id 8B5298D00C3; Tue, 12 Jan 2021 11:14:05 -0500 (EST) X-Delivered-To: linux-mm@kvack.org Received: from forelay.hostedemail.com (smtprelay0006.hostedemail.com [216.40.44.6]) by kanga.kvack.org (Postfix) with ESMTP id 705788D00C5 for ; Tue, 12 Jan 2021 11:14:05 -0500 (EST) Received: from smtpin24.hostedemail.com (10.5.19.251.rfc1918.com [10.5.19.251]) by forelay05.hostedemail.com (Postfix) with ESMTP id 2F350181AEF1D for ; Tue, 12 Jan 2021 16:14:05 +0000 (UTC) X-FDA: 77697619650.24.home78_1811d4527516 Received: from filter.hostedemail.com (10.5.16.251.rfc1918.com [10.5.16.251]) by smtpin24.hostedemail.com (Postfix) with ESMTP id 0A4CD1A4A7 for ; Tue, 12 Jan 2021 16:14:05 +0000 (UTC) X-HE-Tag: home78_1811d4527516 X-Filterd-Recvd-Size: 5305 Received: from aserp2130.oracle.com (aserp2130.oracle.com [141.146.126.79]) by imf46.hostedemail.com (Postfix) with ESMTP for ; Tue, 12 Jan 2021 16:14:04 +0000 (UTC) Received: from pps.filterd (aserp2130.oracle.com [127.0.0.1]) by aserp2130.oracle.com (8.16.0.42/8.16.0.42) with SMTP id 10CG9WLP086456; Tue, 12 Jan 2021 16:13:46 GMT DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=oracle.com; h=from : to : cc : subject : date : message-id : in-reply-to : references : mime-version : content-transfer-encoding; s=corp-2020-01-29; bh=XzacnTtll8Y3H74LoI3ku0bEMoV1Y0GeCbHIbg8Ris0=; b=n+ZcdSre92uOklk2IhTDVQFroU4nlMi5M632oS5iKdBYE8/UkTYpr2nssG493PK5c+1c XHvbMs13WbpS3QugBsxayLVA8m6SCkBSz44EbD3+o/GyDTTpB7wE8o9Obw0nIuJkU3ad gAHGLGE5hbZj7OJwnEUBbXn90tvp95+WknE9NFUUwcGgUgY34cln9rnrxPBwPhIA3DD6 8TuhXIInZePCcoWm0hy8ZC8T9AwpdR66w2iu0ghFQXbUctmqPR86gPvEAtvKMM5ZIVzs IkHxUo1hb6wsHFK4Nd5lQODKuba/9joZkig3EzpT99soj2gQcGP+sKEhpR5dSQYTr3bC tA== Received: from aserp3020.oracle.com (aserp3020.oracle.com [141.146.126.70]) by aserp2130.oracle.com with ESMTP id 360kg1q4w8-1 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=OK); Tue, 12 Jan 2021 16:13:45 +0000 Received: from pps.filterd (aserp3020.oracle.com [127.0.0.1]) by aserp3020.oracle.com (8.16.0.42/8.16.0.42) with SMTP id 10CGBaO3143216; Tue, 12 Jan 2021 16:13:45 GMT Received: from aserv0121.oracle.com (aserv0121.oracle.com [141.146.126.235]) by aserp3020.oracle.com with ESMTP id 360ke6rh14-1 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=OK); Tue, 12 Jan 2021 16:13:45 +0000 Received: from abhmp0012.oracle.com (abhmp0012.oracle.com [141.146.116.18]) by aserv0121.oracle.com (8.14.4/8.13.8) with ESMTP id 10CGDirn004504; Tue, 12 Jan 2021 16:13:44 GMT Received: from revolver.jebus.ca (/23.233.25.87) by default (Oracle Beehive Gateway v4.0) with ESMTP ; Tue, 12 Jan 2021 08:13:44 -0800 From: "Liam R. Howlett" To: maple-tree@lists.infradead.org, linux-mm@kvack.org, linux-kernel@vger.kernel.org Cc: Andrew Morton , Song Liu , Davidlohr Bueso , "Paul E . McKenney" , Matthew Wilcox , Jerome Glisse , David Rientjes , Axel Rasmussen , Suren Baghdasaryan , Vlastimil Babka , Rik van Riel , Peter Zijlstra Subject: [PATCH v2 32/70] arch/powerpc: Optimize cell spu task sync. Date: Tue, 12 Jan 2021 11:12:02 -0500 Message-Id: <20210112161240.2024684-33-Liam.Howlett@Oracle.com> X-Mailer: git-send-email 2.28.0 In-Reply-To: <20210112161240.2024684-1-Liam.Howlett@Oracle.com> References: <20210112161240.2024684-1-Liam.Howlett@Oracle.com> MIME-Version: 1.0 X-Proofpoint-Virus-Version: vendor=nai engine=6000 definitions=9862 signatures=668683 X-Proofpoint-Spam-Details: rule=notspam policy=default score=0 adultscore=0 suspectscore=0 spamscore=0 mlxlogscore=999 malwarescore=0 bulkscore=0 mlxscore=0 phishscore=0 classifier=spam adjust=0 reason=mlx scancount=1 engine=8.12.0-2009150000 definitions=main-2101120092 X-Proofpoint-Virus-Version: vendor=nai engine=6000 definitions=9862 signatures=668683 X-Proofpoint-Spam-Details: rule=notspam policy=default score=0 malwarescore=0 suspectscore=0 clxscore=1015 impostorscore=0 spamscore=0 priorityscore=1501 mlxscore=0 phishscore=0 mlxlogscore=999 bulkscore=0 adultscore=0 lowpriorityscore=0 classifier=spam adjust=0 reason=mlx scancount=1 engine=8.12.0-2009150000 definitions=main-2101120092 X-Bogosity: Ham, tests=bogofilter, spamicity=0.000000, version=1.2.4 Sender: owner-linux-mm@kvack.org Precedence: bulk X-Loop: owner-majordomo@kvack.org List-ID: Use the vma api to look up the spu reference instead of walking the linked list. Signed-off-by: Liam R. Howlett --- arch/powerpc/oprofile/cell/spu_task_sync.c | 22 ++++++++++------------ 1 file changed, 10 insertions(+), 12 deletions(-) diff --git a/arch/powerpc/oprofile/cell/spu_task_sync.c b/arch/powerpc/oprofile/cell/spu_task_sync.c index 489f993100d56..47b4d4e9b628d 100644 --- a/arch/powerpc/oprofile/cell/spu_task_sync.c +++ b/arch/powerpc/oprofile/cell/spu_task_sync.c @@ -333,19 +333,17 @@ get_exec_dcookie_and_offset(struct spu *spu, unsigned int *offsetp, } mmap_read_lock(mm); - for (vma = mm->mmap; vma; vma = vma->vm_next) { - if (vma->vm_start > spu_ref || vma->vm_end <= spu_ref) - continue; - my_offset = spu_ref - vma->vm_start; - if (!vma->vm_file) - goto fail_no_image_cookie; - - pr_debug("Found spu ELF at %X(object-id:%lx) for file %pD\n", - my_offset, spu_ref, vma->vm_file); - *offsetp = my_offset; - break; - } + vma = find_vma_intersection(mm, spu_ref, spu_ref + 1); + if (!vma) + goto fail_no_image_cookie; + + my_offset = spu_ref - vma->vm_start; + if (!vma->vm_file) + goto fail_no_image_cookie; + pr_debug("Found spu ELF at %X(object-id:%lx) for file %pD\n", + my_offset, spu_ref, vma->vm_file); + *offsetp = my_offset; *spu_bin_dcookie = fast_get_dcookie(&vma->vm_file->f_path); pr_debug("got dcookie for %pD\n", vma->vm_file);