From mboxrd@z Thu Jan 1 00:00:00 1970 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=-17.4 required=3.0 tests=DKIMWL_WL_MED,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_PATCH, MAILING_LIST_MULTI,SIGNED_OFF_BY,SPF_HELO_NONE,SPF_PASS,USER_AGENT_GIT, USER_IN_DEF_DKIM_WL autolearn=unavailable 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 0DAD8C2D0ED for ; Fri, 27 Mar 2020 02:11:18 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id D5AED20787 for ; Fri, 27 Mar 2020 02:11:17 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (2048-bit key) header.d=google.com header.i=@google.com header.b="jkJyZtiT" Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1727787AbgC0CLL (ORCPT ); Thu, 26 Mar 2020 22:11:11 -0400 Received: from mail-pf1-f202.google.com ([209.85.210.202]:38813 "EHLO mail-pf1-f202.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1727708AbgC0CLL (ORCPT ); Thu, 26 Mar 2020 22:11:11 -0400 Received: by mail-pf1-f202.google.com with SMTP id f14so7052008pfk.5 for ; Thu, 26 Mar 2020 19:11:09 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=20161025; h=date:in-reply-to:message-id:mime-version:references:subject:from:to :cc; bh=lSXLGIOt8CRablzbfhFF+Q5uTpG35OzukruA70fch2E=; b=jkJyZtiTrah0k12mJlrKqb7rSd5WlOpLupMyryDRi33YSxPy+21eUQex0fK+X6UB+0 zT9vjBnp+JwXEhFJRtxY2RsQTudvG97D1Lhp3WSb6TWLEk4+0gziK988qhQUXl4RUfnA JJC0smgj5BCrsqaMZZx/nrKasdKT8AJ3vDRG51QIjnQs+dXXdQb8IFLBNIluFonhWM24 lBGwXY+6lOwUxGW551lnx+9w9Xh6gM3qrAD4/jWe5h3HN25ESGEJDg9fXRfMZFw8Ciia h4zvE9h5T43BpT3s4TZGvD3/NrHuQjjWBNEmx/PkneV8d+2w+CXEFk7tKbW2PI/RYW6J uOHA== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:date:in-reply-to:message-id:mime-version :references:subject:from:to:cc; bh=lSXLGIOt8CRablzbfhFF+Q5uTpG35OzukruA70fch2E=; b=cTxWDOa1W71BgV1QV7TLzGuqTYdPvhE123/DOujtTdBCA1oSj1KsifMeIPSeO3fg0y qcLPLxCF6d7tNekuIn2DVrm5Esk74oDrMrBgtcLLgB00kEEPs+XdjERNUHDMvuDRJFHg WsVA10+so15QVyQpfz0P1DXP9/9zg1XHcKn1pzq+o+nVtHW5E4RYu1EC2KTtjUn9uSeP hCbPaRlNa/8KwB0AiupvLPeMC8/EHlLhPfAXYLr6cVE7uJ4ySmlaexqPIulik2CYgqjU kwpNuN/6ZQL/MJnURk+hZ2rLeqWEtX49wtgtSZk7tJNtUANz8xwuOtH9NDZyEIzEu1ci 6log== X-Gm-Message-State: ANhLgQ311MkQE94qbr2Ljlk5RPiAR1xx0IE2VNxyL1HnAHJbt/XW1XqE n2FrxA7deCawgEnDBayh69mFO/jls3M= X-Google-Smtp-Source: ADFU+vvRRsE1kbtwpKYeV5gGrgzJavkeIriSS9e6ve7iTLNvp2pxYAdq+JZbiyapnuNAIMUA+wO7dwV9jjg= X-Received: by 2002:a17:90a:d585:: with SMTP id v5mr3322521pju.4.1585275068691; Thu, 26 Mar 2020 19:11:08 -0700 (PDT) Date: Thu, 26 Mar 2020 19:10:51 -0700 In-Reply-To: <20200327021058.221911-1-walken@google.com> Message-Id: <20200327021058.221911-4-walken@google.com> Mime-Version: 1.0 References: <20200327021058.221911-1-walken@google.com> X-Mailer: git-send-email 2.26.0.rc2.310.g2932bb562d-goog Subject: [PATCH v2 03/10] DMA reservations: use the new mmap locking API From: Michel Lespinasse To: Andrew Morton , linux-mm Cc: LKML , Peter Zijlstra , Laurent Dufour , Vlastimil Babka , Matthew Wilcox , Liam Howlett , Jerome Glisse , Davidlohr Bueso , David Rientjes , Hugh Dickins , Ying Han , Jason Gunthorpe , Markus Elfring , Michel Lespinasse Content-Type: text/plain; charset="UTF-8" Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org This use is converted manually ahead of the next patch in the series, as it requires including a new header which the automated conversion would miss. Signed-off-by: Michel Lespinasse --- drivers/dma-buf/dma-resv.c | 5 +++-- 1 file changed, 3 insertions(+), 2 deletions(-) diff --git a/drivers/dma-buf/dma-resv.c b/drivers/dma-buf/dma-resv.c index 4264e64788c4..b45f8514dc82 100644 --- a/drivers/dma-buf/dma-resv.c +++ b/drivers/dma-buf/dma-resv.c @@ -34,6 +34,7 @@ #include #include +#include #include /** @@ -109,7 +110,7 @@ static int __init dma_resv_lockdep(void) dma_resv_init(&obj); - down_read(&mm->mmap_sem); + mmap_read_lock(mm); ww_acquire_init(&ctx, &reservation_ww_class); ret = dma_resv_lock(&obj, &ctx); if (ret == -EDEADLK) @@ -118,7 +119,7 @@ static int __init dma_resv_lockdep(void) fs_reclaim_release(GFP_KERNEL); ww_mutex_unlock(&obj.lock); ww_acquire_fini(&ctx); - up_read(&mm->mmap_sem); + mmap_read_unlock(mm); mmput(mm); -- 2.26.0.rc2.310.g2932bb562d-goog