From patchwork Fri Nov 18 14:43:27 2016 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-Patchwork-Submitter: =?UTF-8?q?Javier=20Gonz=C3=A1lez?= X-Patchwork-Id: 9436687 Return-Path: Received: from mail.wl.linuxfoundation.org (pdx-wl-mail.web.codeaurora.org [172.30.200.125]) by pdx-korg-patchwork.web.codeaurora.org (Postfix) with ESMTP id BD05E60237 for ; Fri, 18 Nov 2016 14:48:26 +0000 (UTC) Received: from mail.wl.linuxfoundation.org (localhost [127.0.0.1]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id B857329911 for ; Fri, 18 Nov 2016 14:48:26 +0000 (UTC) Received: by mail.wl.linuxfoundation.org (Postfix, from userid 486) id AD18A29915; Fri, 18 Nov 2016 14:48:26 +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=-6.8 required=2.0 tests=BAYES_00,DKIM_SIGNED, RCVD_IN_DNSWL_HI,T_DKIM_INVALID autolearn=ham version=3.3.1 Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id 24AB429911 for ; Fri, 18 Nov 2016 14:48:26 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1753451AbcKROoG (ORCPT ); Fri, 18 Nov 2016 09:44:06 -0500 Received: from mail-wm0-f45.google.com ([74.125.82.45]:38633 "EHLO mail-wm0-f45.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1753237AbcKROoC (ORCPT ); Fri, 18 Nov 2016 09:44:02 -0500 Received: by mail-wm0-f45.google.com with SMTP id f82so41997802wmf.1 for ; Fri, 18 Nov 2016 06:44:01 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=lightnvm-io.20150623.gappssmtp.com; s=20150623; h=from:to:cc:subject:date:message-id:in-reply-to:references :mime-version:content-transfer-encoding; bh=Rel886NptGXzOfEA3g6IWzeWpjvAtbTTAXt2Zb1R1ic=; b=Ft3fHzW7tc33oJSk4AAo82+RD6usaQ5akn0r3r2dU58Q8PXDlSNBVL+rszPBmAPMlB SqtEt6+KWqSQUK9dFQnjHUCX9q4w48qMbFBwleF6xExu7nWNkSEMf5HDTuznpyOB51la itgbyl6YXihSFBZj/XD+DTsqwt/hWy2GNTY4NTHccrbgsO8rzGPrOIzkGITglND2E+N3 hrfJAmJ07UcWtmYjBLvdQLmIZcbmRxrLo1b1bYkLkI9eLB8oCrrMhZ65zPKz9dKaySzE DhBis20F81YwXgJfTi4SGfkSLWh86undOeEuRFc6m7aie0g2Fx23ArNPGwsXFuzGWP7E xlXg== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20130820; h=x-gm-message-state:from:to:cc:subject:date:message-id:in-reply-to :references:mime-version:content-transfer-encoding; bh=Rel886NptGXzOfEA3g6IWzeWpjvAtbTTAXt2Zb1R1ic=; b=DZGit64zi3baqAk1Lf4DYQSBzDvVJMzlpKcp7AbLxB3szuRLoPHg9FkzLCtF/P3ArJ B/pEUAjCcgd5ueEWTZ30v1e+XLlQe9cWFq2kPx7gPpXRy013cPUM4XZd/fiefAR0K+XF +rz8lNJV5pphbpAGhLFjyCXaH8EgtW/n4aQwMOqi7qtst6OPqfFDa+3ZJrgCg8zaBaL6 HzqyqjGbylnB2iImtTXHJI+s9aA8PQZJ7XJeadeRqgCdXx36CwHdDmKjd1k6St3v4dSj Ac1IjiB9w8l1KYxMfcx4hljOMdWpFHRlXrNMhOMWJs2BdnGKhGEUrTsEPFrWZyIUD9F1 g88g== X-Gm-Message-State: AKaTC03YmIKXz/yTPnj01B3JduwJcLVD3Zy6GpWHiYtMX67MD28NsFY064baRXVhclo62A== X-Received: by 10.28.182.70 with SMTP id g67mr100775wmf.90.1479480240945; Fri, 18 Nov 2016 06:44:00 -0800 (PST) Received: from uHalley.cnexlabs.com (6164211-cl69.boa.fiberby.dk. [193.106.164.211]) by smtp.gmail.com with ESMTPSA id 138sm3703576wms.20.2016.11.18.06.44.00 (version=TLS1_2 cipher=ECDHE-RSA-AES128-SHA bits=128/128); Fri, 18 Nov 2016 06:44:00 -0800 (PST) From: "=?UTF-8?q?Javier=20Gonz=C3=A1lez?=" X-Google-Original-From: =?UTF-8?q?Javier=20Gonz=C3=A1lez?= To: mb@lightnvm.io Cc: linux-block@vger.kernel.org, linux-kernel@vger.kernel.org, =?UTF-8?q?Javier=20Gonz=C3=A1lez?= , =?UTF-8?q?Javier=20Gonz=C3=A1lez?= , =?UTF-8?q?Matias=20Bj=C3=B8rling?= Subject: [PATCH 05/20] lightnvm: rrpc: split bios of size > 256kb Date: Fri, 18 Nov 2016 15:43:27 +0100 Message-Id: <1479480222-18790-6-git-send-email-javier@cnexlabs.com> X-Mailer: git-send-email 2.7.4 In-Reply-To: <1479480222-18790-1-git-send-email-javier@cnexlabs.com> References: <1479480222-18790-1-git-send-email-javier@cnexlabs.com> MIME-Version: 1.0 Sender: linux-block-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-block@vger.kernel.org X-Virus-Scanned: ClamAV using ClamSMTP From: Javier González rrpc cannot handle bios of size > 256kb due to NVMe using a 64 bit bitmap to signal I/O completion. If a larger bio comes, split it explicitly. Signed-off-by: Javier González Signed-off-by: Matias Bjørling --- drivers/lightnvm/rrpc.c | 2 ++ 1 file changed, 2 insertions(+) diff --git a/drivers/lightnvm/rrpc.c b/drivers/lightnvm/rrpc.c index 2b71b7e..60ca9d4 100644 --- a/drivers/lightnvm/rrpc.c +++ b/drivers/lightnvm/rrpc.c @@ -943,6 +943,8 @@ static blk_qc_t rrpc_make_rq(struct request_queue *q, struct bio *bio) struct nvm_rq *rqd; int err; + blk_queue_split(q, &bio, q->bio_split); + if (bio_op(bio) == REQ_OP_DISCARD) { rrpc_discard(rrpc, bio); return BLK_QC_T_NONE;