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=-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, 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 284A4C12002 for ; Mon, 19 Jul 2021 05:50:39 +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 DF2336109E for ; Mon, 19 Jul 2021 05:50:38 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org DF2336109E 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-mediatek-bounces+linux-mediatek=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: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:In-Reply-To:References: List-Owner; bh=gThxAqlDpjnoSsqAORkOB7f62Y+cr9YH2hTCseJA4v8=; b=1/+X/GfsxSQR/R wVTef3GcRlVRIkYwQqM1w44/o5/mKfckiiEqHhliYGP3e2QtzypS44JIRoiSG4EIiyFK0wDN4mZgB uj+N7N9wl+iJteggfwaLH5VxDl0f8/TAWtZYrX0fGCAu7ptztPNYAd4jbIIDWtf20XvfwdFGbZnNQ AeLpLMkcVFRdbiDp88wlt+UdMrz/uF/R7iZXDTyvBRY+8FCP04mYlHky610YsPGgYFAh5M0+jkn6k 8+JmHv2gdDMwh6u4YGJekJSsaK6oExvIaN7yGtKAwYfF1fO4bdChxYN/LbDJ3tmGVjN9M7USSQMso 6y6Hmv4OFdTEVE8KaFjA==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.94.2 #2 (Red Hat Linux)) id 1m5MAd-008RmE-0q; Mon, 19 Jul 2021 05:50:27 +0000 Received: from mailgw02.mediatek.com ([216.200.240.185]) by bombadil.infradead.org with esmtps (Exim 4.94.2 #2 (Red Hat Linux)) id 1m5MAX-008RlY-Li; Mon, 19 Jul 2021 05:50:25 +0000 X-UUID: 2c983585969a40319e7be0757c7710bb-20210718 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:Message-ID:Date:Subject:CC:To:From; bh=uwsyjC64UPmkuA1CJ/drsMnYD0bFNNOkGv8alX06PI0=; b=lzKWK+qKtUzYtx97oNrbtUSXoLPysoVWu+xeGrlK0zpADbk+8MR4VW0ga7hfj2kmx9KKqARMGSiyg52Zz+dgW0Lq+F1JZC3v3tb2JRtgWDx2OlRGDDLwVlIio8oir0wBzaQsYm9ZUPd2bNJgQffvDr6/eG+sqpt6MDpu9G6/5mo=; X-UUID: 2c983585969a40319e7be0757c7710bb-20210718 Received: from mtkcas67.mediatek.inc [(172.29.193.45)] by mailgw02.mediatek.com (envelope-from ) (musrelay.mediatek.com ESMTP with TLSv1.2 ECDHE-RSA-AES256-SHA384 256/256) with ESMTP id 1871618604; Sun, 18 Jul 2021 22:50:15 -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; Sun, 18 Jul 2021 22:50:13 -0700 Received: from mtkcas07.mediatek.inc (172.21.101.84) by mtkmbs01n2.mediatek.inc (172.21.101.79) with Microsoft SMTP Server (TLS) id 15.0.1497.2; Mon, 19 Jul 2021 13:19:46 +0800 Received: from mszswglt01.gcn.mediatek.inc (10.16.20.20) by mtkcas07.mediatek.inc (172.21.101.73) with Microsoft SMTP Server id 15.0.1497.2 via Frontend Transport; Mon, 19 Jul 2021 13:19:46 +0800 From: To: Sumit Semwal , =?UTF-8?q?Christian=20K=C3=B6nig?= , Matthias Brugger , "open list:DMA BUFFER SHARING FRAMEWORK" , "open list:DMA BUFFER SHARING FRAMEWORK" , "moderated list:DMA BUFFER SHARING FRAMEWORK" , open list , "moderated list:ARM/Mediatek SoC support" , "moderated list:ARM/Mediatek SoC support" CC: , Guangming Cao Subject: [PATCH] dma_buf: remove dmabuf sysfs teardown before release/detach Date: Mon, 19 Jul 2021 13:19:44 +0800 Message-ID: <20210719051944.40871-1-guangming.cao@mediatek.com> X-Mailer: git-send-email 2.17.1 MIME-Version: 1.0 X-MTK: N X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20210718_225023_193770_84566A0D X-CRM114-Status: GOOD ( 10.34 ) X-BeenThere: linux-mediatek@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Sender: "Linux-mediatek" Errors-To: linux-mediatek-bounces+linux-mediatek=archiver.kernel.org@lists.infradead.org From: Guangming Cao Dmabuf sysfs stat is used for dmabuf info track. but these file maybe still use after buffer release/detach, should clear it before buffer release/detach. Signed-off-by: Guangming Cao --- drivers/dma-buf/dma-buf.c | 5 +++-- 1 file changed, 3 insertions(+), 2 deletions(-) diff --git a/drivers/dma-buf/dma-buf.c b/drivers/dma-buf/dma-buf.c index 510b42771974..9fa4620bd4bb 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); @@ -875,10 +875,11 @@ void dma_buf_detach(struct dma_buf *dmabuf, struct dma_buf_attachment *attach) dma_resv_lock(dmabuf->resv, NULL); list_del(&attach->node); dma_resv_unlock(dmabuf->resv); + + dma_buf_attach_stats_teardown(attach); if (dmabuf->ops->detach) dmabuf->ops->detach(dmabuf, attach); - dma_buf_attach_stats_teardown(attach); kfree(attach); } EXPORT_SYMBOL_GPL(dma_buf_detach); -- 2.17.1 _______________________________________________ Linux-mediatek mailing list Linux-mediatek@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-mediatek