From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from smtp.kernel.org (aws-us-west-2-korg-mail-1.web.codeaurora.org [10.30.226.201]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 69CF12D4804; Tue, 12 Aug 2025 19:25:34 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=10.30.226.201 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1755026736; cv=none; b=pFEhkk+sMBvz/2KPipgeLSzZ3qAmFX8sW5PCx9SxxqvTLkKipmES0cniVD13a+GK/ePWVNTyb7lQk4kRUXZDAnL9FRIErNG7ruRXuzSWHxnKJiMmOgq2hhJ+ceF2B8ocCyMvfC2t6qTkybW6sZQTh2lc5p8HY/I3I/2O1NsU0ys= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1755026736; c=relaxed/simple; bh=6NN+zMCB9f+iOOSWH99YFmuzZAYTUn2V+19UzI2YVOE=; h=From:To:Cc:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version; b=U6kbtQnup3XRExhe87/EDk6g30NiWR9d7YNPN24whIHAjmwbC+xyH27vp3ybtH5SUauPXDBU+ljbxVp3d/hQz500mck7ZCXRfBM5jtHnQUJgaOh09xxUDVAl/PwsCKHxZtJWTbHE07ABNevenvu8ETA2LKp7v64+69Guvh7M0s0= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=linuxfoundation.org header.i=@linuxfoundation.org header.b=isobjVe/; arc=none smtp.client-ip=10.30.226.201 Authentication-Results: smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=linuxfoundation.org header.i=@linuxfoundation.org header.b="isobjVe/" Received: by smtp.kernel.org (Postfix) with ESMTPSA id 79695C4CEF0; Tue, 12 Aug 2025 19:25:33 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=linuxfoundation.org; s=korg; t=1755026734; bh=6NN+zMCB9f+iOOSWH99YFmuzZAYTUn2V+19UzI2YVOE=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=isobjVe/zFPvy8efQQjwabdomU9mXm103c3ksqpzAID2QDc73Ub0zFhRT+24f93v7 OQfpjQt4sCKRj8m/qVIcKqllX0cQ2HaxKrNe6YjCK5mgTS8XGU/VEgvdb/xEkHNGiL Hiv1ZGiNVduRH+JNCMshTjc/y1qDLXNmR7HNcDVQ= From: Greg Kroah-Hartman To: stable@vger.kernel.org Cc: Greg Kroah-Hartman , patches@lists.linux.dev, Steve French , Tom Talpey , Long Li , linux-cifs@vger.kernel.org, samba-technical@lists.samba.org, Stefan Metzmacher , Steve French , Sasha Levin Subject: [PATCH 6.15 424/480] smb: client: let send_done() cleanup before calling smbd_disconnect_rdma_connection() Date: Tue, 12 Aug 2025 19:50:32 +0200 Message-ID: <20250812174414.897118923@linuxfoundation.org> X-Mailer: git-send-email 2.50.1 In-Reply-To: <20250812174357.281828096@linuxfoundation.org> References: <20250812174357.281828096@linuxfoundation.org> User-Agent: quilt/0.68 X-stable: review X-Patchwork-Hint: ignore Precedence: bulk X-Mailing-List: stable@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: 8bit 6.15-stable review patch. If anyone has any objections, please let me know. ------------------ From: Stefan Metzmacher [ Upstream commit 5349ae5e05fa37409fd48a1eb483b199c32c889b ] We should call ib_dma_unmap_single() and mempool_free() before calling smbd_disconnect_rdma_connection(). And smbd_disconnect_rdma_connection() needs to be the last function to call as all other state might already be gone after it returns. Cc: Steve French Cc: Tom Talpey Cc: Long Li Cc: linux-cifs@vger.kernel.org Cc: samba-technical@lists.samba.org Fixes: f198186aa9bb ("CIFS: SMBD: Establish SMB Direct connection") Signed-off-by: Stefan Metzmacher Signed-off-by: Steve French Signed-off-by: Sasha Levin --- fs/smb/client/smbdirect.c | 14 ++++++++------ 1 file changed, 8 insertions(+), 6 deletions(-) diff --git a/fs/smb/client/smbdirect.c b/fs/smb/client/smbdirect.c index 754e94a0e07f..e99e783f1b0e 100644 --- a/fs/smb/client/smbdirect.c +++ b/fs/smb/client/smbdirect.c @@ -281,18 +281,20 @@ static void send_done(struct ib_cq *cq, struct ib_wc *wc) log_rdma_send(INFO, "smbd_request 0x%p completed wc->status=%d\n", request, wc->status); - if (wc->status != IB_WC_SUCCESS || wc->opcode != IB_WC_SEND) { - log_rdma_send(ERR, "wc->status=%d wc->opcode=%d\n", - wc->status, wc->opcode); - smbd_disconnect_rdma_connection(request->info); - } - for (i = 0; i < request->num_sge; i++) ib_dma_unmap_single(sc->ib.dev, request->sge[i].addr, request->sge[i].length, DMA_TO_DEVICE); + if (wc->status != IB_WC_SUCCESS || wc->opcode != IB_WC_SEND) { + log_rdma_send(ERR, "wc->status=%d wc->opcode=%d\n", + wc->status, wc->opcode); + mempool_free(request, info->request_mempool); + smbd_disconnect_rdma_connection(info); + return; + } + if (atomic_dec_and_test(&request->info->send_pending)) wake_up(&request->info->wait_send_pending); -- 2.39.5