From patchwork Fri Aug 2 02:19:42 2019 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: john.hubbard@gmail.com X-Patchwork-Id: 11072115 Return-Path: Received: from mail.wl.linuxfoundation.org (pdx-wl-mail.web.codeaurora.org [172.30.200.125]) by pdx-korg-patchwork-2.web.codeaurora.org (Postfix) with ESMTP id 9F915746 for ; Fri, 2 Aug 2019 02:23:55 +0000 (UTC) Received: from mail.wl.linuxfoundation.org (localhost [127.0.0.1]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id 8AABE28620 for ; Fri, 2 Aug 2019 02:23:55 +0000 (UTC) Received: by mail.wl.linuxfoundation.org (Postfix, from userid 486) id 7D58F287BA; Fri, 2 Aug 2019 02:23:55 +0000 (UTC) X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on pdx-wl-mail.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-5.2 required=2.0 tests=BAYES_00,DKIM_ADSP_CUSTOM_MED, DKIM_SIGNED,DKIM_VALID,FREEMAIL_FROM,MAILING_LIST_MULTI,RCVD_IN_DNSWL_MED autolearn=ham version=3.3.1 Received: from bombadil.infradead.org (bombadil.infradead.org [198.137.202.133]) (using TLSv1.2 with cipher AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.wl.linuxfoundation.org (Postfix) with ESMTPS id 1A4402877B for ; Fri, 2 Aug 2019 02:23:55 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=bombadil.20170209; h=Sender: Content-Transfer-Encoding:Content-Type:Cc:List-Subscribe:List-Help:List-Post: List-Archive:List-Unsubscribe:List-Id:MIME-Version:References:In-Reply-To: Message-Id:Date:Subject:To:From:Reply-To:Content-ID:Content-Description: Resent-Date:Resent-From:Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID: List-Owner; bh=luaGXOxVrWY0vgk85aid/Mr4F3PnACw6p2rqF7Xymtc=; b=ud7B6O8kuwb4tw p18bNggyAwb0oEcOa0FOxXNqEg8uzuUdTdYdR9LcCg/aAfIxzlcwzv3GSFqYHBZsTqsJW5+xSp452 Y//PbjRu2Uz9YCiVc/m8Dtln2/7cP4wkbrYJgNnTiZSQdlaqa4xG/tnewZOoSqeEURQ7bPLob96Dh T9Ix253qeWEagefzFOS3JRBwnE2MwO6XFZMwL1hgaqNvGpGhL0BkODEqAvceN+Dsjnj8la1Peu02f KQpPLXrztgLFk5ww9d74Cjp5ND94NVaAQZxBrVtoGNWmu/ux0QtwMMijARFuW/hS75rUsaT0ropEk WYkCaGPcZ/pwFk/UcM5A==; Received: from localhost ([127.0.0.1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.92 #3 (Red Hat Linux)) id 1htNEY-0005NU-I2; Fri, 02 Aug 2019 02:23:54 +0000 Received: from mail-pf1-x441.google.com ([2607:f8b0:4864:20::441]) by bombadil.infradead.org with esmtps (Exim 4.92 #3 (Red Hat Linux)) id 1htNBG-0001rJ-3L; Fri, 02 Aug 2019 02:20:31 +0000 Received: by mail-pf1-x441.google.com with SMTP id i189so35157014pfg.10; Thu, 01 Aug 2019 19:20:29 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20161025; h=from:to:cc:subject:date:message-id:in-reply-to:references :mime-version:content-transfer-encoding; bh=34zW6BJN89MycamN6XZc+aPi3iIpUXsyW4mngm2d11Q=; b=t5NAqE3Vka8KgkTsGoLz9ngltlH4Rvcpb6lwK1UP3GX3tIbQ8zi6/BtK7Yp4TzERha wSeLot/t6ZWJImnvKBZhoEDQI6w3o5UiMaJgEpqqKVxcZT34GhcoUwN2IZVyDwqCPKlC a7Buv+1Wht5mLnbtK6+0hFPG1gydiYPwhnLgxc7zgGLfQhg2ssESYfy+n2RPvUdztRim jUlI8gdPL0+PZqp56ewu9yAP9JBceuh2IC1TKvQK+F/6hCHCM/byLJfkcX1hvyboPVI9 xbVnybXy2ozmgwqFr15PYWmG4HhsZR295UWof1NeRQ0AKr4kLzhdz4MTCgaGRcNk5CYS eE0w== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:from:to:cc:subject:date:message-id:in-reply-to :references:mime-version:content-transfer-encoding; bh=34zW6BJN89MycamN6XZc+aPi3iIpUXsyW4mngm2d11Q=; b=sFjQvkbS4BATkfaUq32HvcccBZGwn65yrYPXTE9ha9/KK26K5cCNF6JkuTP31e7Fws GDNRRIQ7de90Fw3h6xP8IV8cYU87FPSZMLcdvPR8R5+VkrWUssBxPfzvChcsStzSIBmL aSQYuBuDzf0cTrmHjNh3pB+1JF3bzztq//WvLg/Zty36lcgG0Qzfq+4AtopLL4Rrp8z+ e+StiUgWMXo81YKKP74tbVpEEuNxtML5WMc43lbx+OVDkFihKIsi47kZdPzOODdTILlr 0YaeXwDaVFQb9o6mEu7fWVa4UByC0XuAx6MWEAeAAh0VLvabhK6e1hsFGKUKDdh/UN41 1gVQ== X-Gm-Message-State: APjAAAUepsg9Da1KGhPSovoyKMHwpxcBR95Q5VGYvTb+xg11cmwqCzT5 d64VVzhfegpsuGxYgEJ6wrc= X-Google-Smtp-Source: APXvYqzeCy+7cVID+Rr3XWOFQDSekWzD7T6/ZvL7pRVEGXoHJuKXgEeLRZGzPIVKoEslJMD2nH6qbg== X-Received: by 2002:a65:6454:: with SMTP id s20mr122064853pgv.15.1564712429240; Thu, 01 Aug 2019 19:20:29 -0700 (PDT) Received: from blueforge.nvidia.com (searspoint.nvidia.com. [216.228.112.21]) by smtp.gmail.com with ESMTPSA id u9sm38179744pgc.5.2019.08.01.19.20.27 (version=TLS1_3 cipher=AEAD-AES256-GCM-SHA384 bits=256/256); Thu, 01 Aug 2019 19:20:28 -0700 (PDT) From: john.hubbard@gmail.com X-Google-Original-From: jhubbard@nvidia.com To: Andrew Morton Subject: [PATCH 11/34] scif: convert put_page() to put_user_page*() Date: Thu, 1 Aug 2019 19:19:42 -0700 Message-Id: <20190802022005.5117-12-jhubbard@nvidia.com> X-Mailer: git-send-email 2.22.0 In-Reply-To: <20190802022005.5117-1-jhubbard@nvidia.com> References: <20190802022005.5117-1-jhubbard@nvidia.com> MIME-Version: 1.0 X-NVConfidentiality: public X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20190801_192030_187634_5436EDE8 X-CRM114-Status: GOOD ( 12.11 ) X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: linux-fbdev@vger.kernel.org, Jan Kara , kvm@vger.kernel.org, Dave Hansen , Dave Chinner , Sudeep Dutt , dri-devel@lists.freedesktop.org, linux-mm@kvack.org, sparclinux@vger.kernel.org, Ira Weiny , ceph-devel@vger.kernel.org, devel@driverdev.osuosl.org, Ashutosh Dixit , rds-devel@oss.oracle.com, linux-rdma@vger.kernel.org, x86@kernel.org, amd-gfx@lists.freedesktop.org, Christoph Hellwig , Jason Gunthorpe , xen-devel@lists.xenproject.org, devel@lists.orangefs.org, linux-media@vger.kernel.org, Joerg Roedel , Arnd Bergmann , John Hubbard , intel-gfx@lists.freedesktop.org, linux-block@vger.kernel.org, =?utf-8?b?SsOpcsO0bWUgR2xpc3Nl?= , linux-rpi-kernel@lists.infradead.org, Zhen Lei , Dan Williams , linux-arm-kernel@lists.infradead.org, linux-nfs@vger.kernel.org, netdev@vger.kernel.org, LKML , linux-xfs@vger.kernel.org, linux-crypto@vger.kernel.org, linux-fsdevel@vger.kernel.org, Robin Murphy Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+patchwork-linux-arm=patchwork.kernel.org@lists.infradead.org X-Virus-Scanned: ClamAV using ClamSMTP From: John Hubbard For pages that were retained via get_user_pages*(), release those pages via the new put_user_page*() routines, instead of via put_page() or release_pages(). This is part a tree-wide conversion, as described in commit fc1d8e7cca2d ("mm: introduce put_user_page*(), placeholder versions"). Cc: Sudeep Dutt Cc: Ashutosh Dixit Cc: Arnd Bergmann Cc: Joerg Roedel Cc: Robin Murphy Cc: Zhen Lei Signed-off-by: John Hubbard --- drivers/misc/mic/scif/scif_rma.c | 17 ++++++++--------- 1 file changed, 8 insertions(+), 9 deletions(-) diff --git a/drivers/misc/mic/scif/scif_rma.c b/drivers/misc/mic/scif/scif_rma.c index 01e27682ea30..d84ed9466920 100644 --- a/drivers/misc/mic/scif/scif_rma.c +++ b/drivers/misc/mic/scif/scif_rma.c @@ -113,13 +113,14 @@ static int scif_destroy_pinned_pages(struct scif_pinned_pages *pin) int writeable = pin->prot & SCIF_PROT_WRITE; int kernel = SCIF_MAP_KERNEL & pin->map_flags; - for (j = 0; j < pin->nr_pages; j++) { - if (pin->pages[j] && !kernel) { + if (kernel) { + for (j = 0; j < pin->nr_pages; j++) { if (writeable) - SetPageDirty(pin->pages[j]); + set_page_dirty_lock(pin->pages[j]); put_page(pin->pages[j]); } - } + } else + put_user_pages_dirty_lock(pin->pages, pin->nr_pages, writeable); scif_free(pin->pages, pin->nr_pages * sizeof(*pin->pages)); @@ -1385,11 +1386,9 @@ int __scif_pin_pages(void *addr, size_t len, int *out_prot, if (ulimit) __scif_dec_pinned_vm_lock(mm, nr_pages); /* Roll back any pinned pages */ - for (i = 0; i < pinned_pages->nr_pages; i++) { - if (pinned_pages->pages[i]) - put_page( - pinned_pages->pages[i]); - } + put_user_pages(pinned_pages->pages, + pinned_pages->nr_pages); + prot &= ~SCIF_PROT_WRITE; try_upgrade = false; goto retry;