From patchwork Tue Jul 20 10:31:58 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: "Guangming.Cao" X-Patchwork-Id: 12388051 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=-18.2 required=3.0 tests=BAYES_00,DKIMWL_WL_HIGH, DKIM_SIGNED,DKIM_VALID,HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_CR_TRAILER, INCLUDES_PATCH,MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS,UNPARSEABLE_RELAY, URIBL_BLOCKED,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 24DBCC07E95 for ; Tue, 20 Jul 2021 10:38:26 +0000 (UTC) Received: from bombadil.infradead.org (bombadil.infradead.org [198.137.202.133]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPS id D779861107 for ; Tue, 20 Jul 2021 10:38:25 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org D779861107 Authentication-Results: mail.kernel.org; dmarc=fail (p=none dis=none) header.from=mediatek.com Authentication-Results: mail.kernel.org; spf=none smtp.mailfrom=linux-arm-kernel-bounces+linux-arm-kernel=archiver.kernel.org@lists.infradead.org DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=bombadil.20210309; h=Sender: Content-Transfer-Encoding:Content-Type:List-Subscribe:List-Help:List-Post: List-Archive:List-Unsubscribe:List-Id:MIME-Version:References:In-Reply-To: Message-ID:Date:Subject:CC:To:From:Reply-To:Content-ID:Content-Description: Resent-Date:Resent-From:Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID: List-Owner; bh=wNnXpz9/VxqhqLbgWg25N9mMAwU4qveCckWtjy3ppHM=; b=FPkAiHbuiRfc/+ 0GnMJ5cy+UMKLX0Y2ae6W4ENiBFEHsLhMtxUm2FKzTGruX6SafTUJ/nbnKBYVxB4z/gioinnFDV0o 8xJTi27ECfhIH12iJkHZRIrvd2lSSidYsKtgg+hPNsfFlop60Q+vpDwQSiWwreDBSvgjvaUupjCw1 rUySEpMlShyBTyzx9EmhVBFbJMSF6ijzKCrHnnYB7+EiiyW24YhYLgdF4r9uSE8+CpXJ4F6RhPV5D kfL9x2X9akt8j2F4nAIzzgNPbNABePq39UcyFbrglQ4Kt56NP6jOHIHWv19+WbGMc0nTZwS/jV3LK E2Gr0NDd+M9iHoj2UfQg==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.94.2 #2 (Red Hat Linux)) id 1m5n6q-00CXbx-8z; Tue, 20 Jul 2021 10:36:20 +0000 Received: from mailgw01.mediatek.com ([216.200.240.184]) by bombadil.infradead.org with esmtps (Exim 4.94.2 #2 (Red Hat Linux)) id 1m5n6l-00CXad-Ma; Tue, 20 Jul 2021 10:36:17 +0000 X-UUID: 41d247072f644afabcc0ad4a6ab22ab1-20210720 DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=mediatek.com; s=dk; h=Content-Transfer-Encoding:Content-Type:MIME-Version:References:In-Reply-To:Message-ID:Date:Subject:CC:To:From; bh=ew/pGAj5afQMxxeaRB5JfjKi9AE3y95r0aenItp8b7g=; b=JztDZnPYWJ8zt7qj2f7UZWXZCgqHs5gyP89E2tTRWgLBN7d16C8O3HkzR6PNDidCez8w5k5+WbJm4DZk/kOWGWbA/8JEd1pp5xRQagtJo4Ma1ZvehD+fzU7eQ5EWiKuK5MIqvwwVPyFeIvfIqoIG9Oza/HGL8vlO3eKCbKldeDA=; X-UUID: 41d247072f644afabcc0ad4a6ab22ab1-20210720 Received: from mtkcas66.mediatek.inc [(172.29.193.44)] by mailgw01.mediatek.com (envelope-from ) (musrelay.mediatek.com ESMTP with TLSv1.2 ECDHE-RSA-AES256-SHA384 256/256) with ESMTP id 1886337054; Tue, 20 Jul 2021 03:36:13 -0700 Received: from MTKMBS01N2.mediatek.inc (172.21.101.79) by MTKMBS62DR.mediatek.inc (172.29.94.18) with Microsoft SMTP Server (TLS) id 15.0.1497.2; Tue, 20 Jul 2021 03:32:15 -0700 Received: from MTKCAS06.mediatek.inc (172.21.101.30) by mtkmbs01n2.mediatek.inc (172.21.101.79) with Microsoft SMTP Server (TLS) id 15.0.1497.2; Tue, 20 Jul 2021 18:32:08 +0800 Received: from mszswglt01.gcn.mediatek.inc (10.16.20.20) by MTKCAS06.mediatek.inc (172.21.101.73) with Microsoft SMTP Server id 15.0.1497.2 via Frontend Transport; Tue, 20 Jul 2021 18:32:01 +0800 From: To: CC: , , , , , , , , , , Guangming Cao Subject: [PATCH v2] dma_buf: remove dmabuf sysfs teardown before release Date: Tue, 20 Jul 2021 18:31:58 +0800 Message-ID: <20210720103158.83439-1-guangming.cao@mediatek.com> X-Mailer: git-send-email 2.17.1 In-Reply-To: <8d7dfc78-aa85-48b5-2828-21ec6b463ac3@amd.com> References: <8d7dfc78-aa85-48b5-2828-21ec6b463ac3@amd.com> MIME-Version: 1.0 X-MTK: N X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20210720_033615_787703_61B4F314 X-CRM114-Status: GOOD ( 10.36 ) X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+linux-arm-kernel=archiver.kernel.org@lists.infradead.org From: Guangming Cao Dmabuf sysfs stat is used for dmabuf info track. But these file maybe still in use after buffer released, should clear it before buffer release. Signed-off-by: Guangming Cao --- drivers/dma-buf/dma-buf.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/dma-buf/dma-buf.c b/drivers/dma-buf/dma-buf.c index b1a6db71c656..63d32261b63f 100644 --- a/drivers/dma-buf/dma-buf.c +++ b/drivers/dma-buf/dma-buf.c @@ -76,12 +76,12 @@ static void dma_buf_release(struct dentry *dentry) */ BUG_ON(dmabuf->cb_shared.active || dmabuf->cb_excl.active); + dma_buf_stats_teardown(dmabuf); dmabuf->ops->release(dmabuf); if (dmabuf->resv == (struct dma_resv *)&dmabuf[1]) dma_resv_fini(dmabuf->resv); - dma_buf_stats_teardown(dmabuf); module_put(dmabuf->owner); kfree(dmabuf->name); kfree(dmabuf);