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=-5.2 required=3.0 tests=DKIMWL_WL_HIGH,DKIM_SIGNED, DKIM_VALID,HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI,SIGNED_OFF_BY, SPF_HELO_NONE,SPF_PASS,URIBL_BLOCKED,USER_AGENT_SANE_1 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 52408C433E0 for ; Thu, 14 May 2020 06:11:20 +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 29F2D206D4 for ; Thu, 14 May 2020 06:11:20 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (2048-bit key) header.d=lists.infradead.org header.i=@lists.infradead.org header.b="fv1U0TCO" DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 29F2D206D4 Authentication-Results: mail.kernel.org; dmarc=none (p=none dis=none) header.from=suse.de Authentication-Results: mail.kernel.org; spf=none smtp.mailfrom=linux-nvme-bounces+linux-nvme=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.20170209; h=Sender:Content-Type: Content-Transfer-Encoding:List-Subscribe:List-Help:List-Post:List-Archive: List-Unsubscribe:List-Id:In-Reply-To:MIME-Version:Date:Message-ID:From: References:To:Subject:Reply-To:Cc:Content-ID:Content-Description:Resent-Date: Resent-From:Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID:List-Owner; bh=EpuRwKCIBaSZCdTH9sPrkB2wApvwGljHoQxTvcDWa1Q=; b=fv1U0TCOZ4Sa96qP9jKg34s38 n9+P85Niayn0531HEs3eraekJfb94S3IiRkSP71+1x+w9V5v9OA9oiJuKYNOH1kqrk7/y6o2u6RiO tak0s8pz2h2fv7ixZSAGkzxUSHDkzZLPzgXe4yyjXKwKP/RvuF0fWIGRn7zoOFHC4B1/f5J0a4n+P /mGCkkrDLB3UHNYKB0nTVg5bsZEgIXi6hK2FlNwAAl4rbOlGc7cbm/zbXXDxmCZ0KrpC3ny3jVD1d CoGZsgPXkSLzgJuuO6/x6wQfhVpqYOW0zJ6a3rY5mmr+HcKEiNwSv8JqwC9hUoZOKMCaYpHbgnu6T 2oVwzCQHw==; Received: from localhost ([127.0.0.1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.92.3 #3 (Red Hat Linux)) id 1jZ75S-0007IY-83; Thu, 14 May 2020 06:11:18 +0000 Received: from mx2.suse.de ([195.135.220.15]) by bombadil.infradead.org with esmtps (Exim 4.92.3 #3 (Red Hat Linux)) id 1jZ75P-0007Hb-Em for linux-nvme@lists.infradead.org; Thu, 14 May 2020 06:11:16 +0000 X-Virus-Scanned: by amavisd-new at test-mx.suse.de Received: from relay2.suse.de (unknown [195.135.220.254]) by mx2.suse.de (Postfix) with ESMTP id 72628AD18; Thu, 14 May 2020 06:11:16 +0000 (UTC) Subject: Re: [PATCH] nvme: Fix io_opt limit setting To: Damien Le Moal , linux-nvme@lists.infradead.org, Christoph Hellwig , Keith Busch , Sagi Grimberg , linux-block@vger.kernel.org, Jens Axboe References: <20200514015452.1055278-1-damien.lemoal@wdc.com> From: Hannes Reinecke Message-ID: <6feea03c-4c17-8f56-e0a4-3f1e3d81d76e@suse.de> Date: Thu, 14 May 2020 08:11:10 +0200 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:68.0) Gecko/20100101 Thunderbird/68.7.0 MIME-Version: 1.0 In-Reply-To: <20200514015452.1055278-1-damien.lemoal@wdc.com> Content-Language: en-US X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20200513_231115_641165_0995ABDA X-CRM114-Status: GOOD ( 20.91 ) X-BeenThere: linux-nvme@lists.infradead.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Content-Transfer-Encoding: base64 Content-Type: text/plain; charset="utf-8"; Format="flowed" Sender: "linux-nvme" Errors-To: linux-nvme-bounces+linux-nvme=archiver.kernel.org@lists.infradead.org T24gNS8xNC8yMCAzOjU0IEFNLCBEYW1pZW4gTGUgTW9hbCB3cm90ZToKPiBDdXJyZW50bHksIGEg bmFtZXNwYWNlIGlvX29wdCBxdWV1ZSBsaW1pdCBpcyBzZXQgYnkgZGVmYXVsdCB0byB0aGUKPiBw aHlzaWNhbCBzZWN0b3Igc2l6ZSBvZiB0aGUgbmFtZXNwYWNlIGFuZCB0byB0aGUgdGhlIHdyaXRl IG9wdGltYWwKPiBzaXplIChOT1dTKSB3aGVuIHRoZSBuYW1lc3BhY2UgcmVwb3J0cyB0aGlzIHZh bHVlLiBUaGlzIGNhdXNlcyBwcm9ibGVtcwo+IHdpdGggYmxvY2sgbGltaXRzIHN0YWNraW5nIGlu IGJsa19zdGFja19saW1pdHMoKSB3aGVuIGEgbmFtZXNwYWNlIGJsb2NrCj4gZGV2aWNlIGlzIGNv bWJpbmVkIHdpdGggYW4gSEREIHdoaWNoIGdlbmVyYWxseSBkbyBub3QgcmVwb3J0IGFueSBvcHRp bWFsCj4gdHJhbnNmZXIgc2l6ZSAoaW9fb3B0IGxpbWl0IGlzIDApLiBUaGUgY29kZToKPiAKPiAv KiBPcHRpbWFsIEkvTyBhIG11bHRpcGxlIG9mIHRoZSBwaHlzaWNhbCBibG9jayBzaXplPyAqLwo+ IGlmICh0LT5pb19vcHQgJiAodC0+cGh5c2ljYWxfYmxvY2tfc2l6ZSAtIDEpKSB7Cj4gCXQtPmlv X29wdCA9IDA7Cj4gCXQtPm1pc2FsaWduZWQgPSAxOwo+IAlyZXQgPSAtMTsKPiB9Cj4gCj4gcmVz dWx0cyBpbiBibGtfc3RhY2tfbGltaXRzKCkgdG8gcmV0dXJuIGFuIGVycm9yIHdoZW4gdGhlIGNv bWJpbmVkCj4gZGV2aWNlcyBoYXZlIGRpZmZlcmVudCBidXQgY29tcGF0aWJsZSBwaHlzaWNhbCBz ZWN0b3Igc2l6ZXMgKGUuZy4gNTEyQgo+IHNlY3RvciBTU0Qgd2l0aCA0S0Igc2VjdG9yIGRpc2tz KS4KPiAKPiBGaXggdGhpcyBieSBub3Qgc2V0dGluZyB0aGUgb3B0aW9tYWwgSU8gc2l6ZSBsaW1p dCBpZiB0aGUgbmFtZXNwYWNlIGRvZXMKPiBub3QgcmVwb3J0IGFuIG9wdGltYWwgd3JpdGUgc2l6 ZSB2YWx1ZS4KPiAKPiBTaWduZWQtb2ZmLWJ5OiBEYW1pZW4gTGUgTW9hbCA8ZGFtaWVuLmxlbW9h bEB3ZGMuY29tPgo+IC0tLQo+ICAgZHJpdmVycy9udm1lL2hvc3QvY29yZS5jIHwgOCArKysrLS0t LQo+ICAgMSBmaWxlIGNoYW5nZWQsIDQgaW5zZXJ0aW9ucygrKSwgNCBkZWxldGlvbnMoLSkKPiAK QWgsIHNvIHlvdSBiZWF0IG1lIHRvIGl0IDotKQoKUmV2aWV3ZWQtYnk6IEhhbm5lcyBSZWluZWNr ZSA8aGFyZUBzdXNlLmRlPgoKQ2hlZXJzLAoKSGFubmVzCi0tIApEci4gSGFubmVzIFJlaW5lY2tl ICAgICAgICAgICAgVGVhbWxlYWQgU3RvcmFnZSAmIE5ldHdvcmtpbmcKaGFyZUBzdXNlLmRlICAg ICAgICAgICAgICAgICAgICAgICAgICAgICAgICs0OSA5MTEgNzQwNTMgNjg4ClNVU0UgU29mdHdh cmUgU29sdXRpb25zIEdtYkgsIE1heGZlbGRzdHIuIDUsIDkwNDA5IE7DvHJuYmVyZwpIUkIgMzY4 MDkgKEFHIE7DvHJuYmVyZyksIEdlc2Now6RmdHNmw7xocmVyOiBGZWxpeCBJbWVuZMO2cmZmZXIK Cl9fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fCmxpbnV4LW52 bWUgbWFpbGluZyBsaXN0CmxpbnV4LW52bWVAbGlzdHMuaW5mcmFkZWFkLm9yZwpodHRwOi8vbGlz dHMuaW5mcmFkZWFkLm9yZy9tYWlsbWFuL2xpc3RpbmZvL2xpbnV4LW52bWUK