From patchwork Sun Sep 6 01:25:10 2020 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Tom Yan X-Patchwork-Id: 11759431 Return-Path: Received: from mail.kernel.org (pdx-korg-mail-1.web.codeaurora.org [172.30.200.123]) by pdx-korg-patchwork-2.web.codeaurora.org (Postfix) with ESMTP id 6DA2E618 for ; Sun, 6 Sep 2020 01:25:44 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 51DF42078D for ; Sun, 6 Sep 2020 01:25:44 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (2048-bit key) header.d=gmail.com header.i=@gmail.com header.b="Enq4iPbG" Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1728881AbgIFBZm (ORCPT ); Sat, 5 Sep 2020 21:25:42 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:42188 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1728742AbgIFBZj (ORCPT ); Sat, 5 Sep 2020 21:25:39 -0400 Received: from mail-pj1-x1041.google.com (mail-pj1-x1041.google.com [IPv6:2607:f8b0:4864:20::1041]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 576E4C061573; Sat, 5 Sep 2020 18:25:39 -0700 (PDT) Received: by mail-pj1-x1041.google.com with SMTP id u3so1525245pjr.3; Sat, 05 Sep 2020 18:25:39 -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=EcapTIGFf+31wVMqsHZgBSE+2BUv5P+WBgtFpuHKTB4=; b=Enq4iPbG8/ACEw9m66GlXeAjWiJ0CPBHnob6ri6jjW8mOiGH0UGCOXqOI5sF8388QL YBFIJgE18+zpPPQ34agqn0VwdV8LVo6zT1YU4KD+cloz3MzHJhCt3h3uBLgqP0fTSzWU hYhxo+uZh8aMCox7EcV84s/znr9iLbbTRX5z1iaT0AzYMufhJfd7R76CJZRwV3P6yt8O JYBXJX0WgUdkBgaKOj6ctse2fDeN/egafBhWpIgdb4x46YrgDs35QDJAVHR+VlMo2Xb+ MQLdFdoH4Vli3pfVo/k1taj6RSWDlJMSPedSELkhws5TCptSy/7o9OPaMKgoW1nAyVzT WK0Q== 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=EcapTIGFf+31wVMqsHZgBSE+2BUv5P+WBgtFpuHKTB4=; b=JuvZCDvOkjMsQgaHIrcTNu4FUCiwLsLbDTEv74CEDTJQXc4uge08DeKuWVbMp0/2H7 hDwy7v+p4VsxMDoT84Ys4ar7Gw/Y90JTpUE6JQMECRln4GCblwtDN70D29BpURqnkzkO SS42BC7RuteER+BEOlfD1UlHoSr2ja54526i8SgMTZ48Tfk+PVEONM94BDMTDx3Gnxqu ETGb+slbHQX/dgXIQ6PH8gPnCCa7gC+9/5AMRF/0bO3vNle7rojUt3+S3a0sMwVFqrL2 3UJFUBQLUc1OaQZCgz4IUa8HOGf5pVXoFLJX8RMSkyEJ0ss3PmqVd9CFzwxBOgrSRWmW R3Zg== X-Gm-Message-State: AOAM533gTeFbALnPPTz6qE753V4aAGMQhd9f/J3wj2WWUsBflMFY8gcq Nb4L23GDjzHUmjXmeV0PT/2oF4IJg9E= X-Google-Smtp-Source: ABdhPJyzQya9BgMxlhxu6sSwZcA9D8WzGaZnNzbpxeOiVENy0OPxEDXDH5di5cCObQses/Q/zeVmUQ== X-Received: by 2002:a17:90a:bf8c:: with SMTP id d12mr13611265pjs.157.1599355538477; Sat, 05 Sep 2020 18:25:38 -0700 (PDT) Received: from localhost.localdomain ([161.81.62.213]) by smtp.gmail.com with ESMTPSA id w206sm3070386pfc.1.2020.09.05.18.25.36 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Sat, 05 Sep 2020 18:25:37 -0700 (PDT) From: Tom Yan To: linux-scsi@vger.kernel.org, dgilbert@interlog.com, bvanassche@acm.org Cc: stern@rowland.harvard.edu.com, akinobu.mita@gmail.com, hch@lst.de, linux-api@vger.kernel.org, Tom Yan Subject: [PATCH RESEND 2/4] scsi: sg: implement BLKSSZGET Date: Sun, 6 Sep 2020 09:25:10 +0800 Message-Id: <20200906012512.1428-2-tom.ty89@gmail.com> X-Mailer: git-send-email 2.28.0 In-Reply-To: <20200906012512.1428-1-tom.ty89@gmail.com> References: <20200906012512.1428-1-tom.ty89@gmail.com> MIME-Version: 1.0 Sender: linux-scsi-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-scsi@vger.kernel.org Provide an ioctl to get the logical sector size so that the maximum bytes per request can be derived. Follow-up of the BLKSECTGET fix. Signed-off-by: Tom Yan --- drivers/scsi/sg.c | 2 ++ 1 file changed, 2 insertions(+) diff --git a/drivers/scsi/sg.c b/drivers/scsi/sg.c index e57831910228..0e3f084141a3 100644 --- a/drivers/scsi/sg.c +++ b/drivers/scsi/sg.c @@ -1118,6 +1118,8 @@ sg_ioctl_common(struct file *filp, Sg_device *sdp, Sg_fd *sfp, max_sectors = min_t(unsigned int, USHRT_MAX, queue_max_sectors(sdp->device->request_queue)); return put_user(max_sectors, ip); + case BLKSSZGET: + return put_user(queue_logical_block_size(sdp->device->request_queue), ip); case BLKTRACESETUP: return blk_trace_setup(sdp->device->request_queue, sdp->disk->disk_name,