From patchwork Tue Oct 24 05:00:37 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Xiubo Li X-Patchwork-Id: 737886 Received: from lindbergh.monkeyblade.net (lindbergh.monkeyblade.net [23.128.96.19]) (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 8219A79C0 for ; Tue, 24 Oct 2023 05:03:04 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=redhat.com header.i=@redhat.com header.b="VTrJkZOk" Received: from us-smtp-delivery-124.mimecast.com (us-smtp-delivery-124.mimecast.com [170.10.129.124]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 309F4B0 for ; Mon, 23 Oct 2023 22:03:03 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=redhat.com; s=mimecast20190719; t=1698123782; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:cc:mime-version:mime-version: content-transfer-encoding:content-transfer-encoding: in-reply-to:in-reply-to:references:references; bh=izi/oE5AQB0oUlSISfoJaQtMtXYXjE/JmvswKQsz1G0=; b=VTrJkZOklvBYXSZWnU2tLYGSTKoWkBHTkNykWLVp679X6oMvxikEewlPHZa1YKTP5pCbsz ED06f4etVk2UNqWRoZa7DJIDR8MvE1t3/8hSNt9lx0PnE0xiJGvnjRolsVAAN1mbk/fkjD qihDrkwCAa5/AFbnvfOIBwC5oM70IWI= Received: from mimecast-mx02.redhat.com (mx-ext.redhat.com [66.187.233.73]) by relay.mimecast.com with ESMTP with STARTTLS (version=TLSv1.3, cipher=TLS_AES_256_GCM_SHA384) id us-mta-345-pw2uqqflMy-Q4zksMkaSvw-1; Tue, 24 Oct 2023 01:03:00 -0400 X-MC-Unique: pw2uqqflMy-Q4zksMkaSvw-1 Received: from smtp.corp.redhat.com (int-mx01.intmail.prod.int.rdu2.redhat.com [10.11.54.1]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature RSA-PSS (2048 bits) server-digest SHA256) (No client certificate requested) by mimecast-mx02.redhat.com (Postfix) with ESMTPS id 1B4C628078CA; Tue, 24 Oct 2023 05:03:00 +0000 (UTC) Received: from li-a71a4dcc-35d1-11b2-a85c-951838863c8d.ibm.com.com (unknown [10.72.112.168]) by smtp.corp.redhat.com (Postfix) with ESMTP id 6A70425C0; Tue, 24 Oct 2023 05:02:57 +0000 (UTC) From: xiubli@redhat.com To: ceph-devel@vger.kernel.org Cc: idryomov@gmail.com, jlayton@kernel.org, vshankar@redhat.com, mchangir@redhat.com, Xiubo Li Subject: [PATCH 1/3] libceph: do not decrease the data length more than once Date: Tue, 24 Oct 2023 13:00:37 +0800 Message-ID: <20231024050039.231143-2-xiubli@redhat.com> In-Reply-To: <20231024050039.231143-1-xiubli@redhat.com> References: <20231024050039.231143-1-xiubli@redhat.com> Precedence: bulk X-Mailing-List: ceph-devel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 X-Scanned-By: MIMEDefang 3.4.1 on 10.11.54.1 From: Xiubo Li No need to decrease the data length again if we need to read the left data. URL: https://tracker.ceph.com/issues/62081 Signed-off-by: Xiubo Li --- net/ceph/messenger_v2.c | 1 - 1 file changed, 1 deletion(-) diff --git a/net/ceph/messenger_v2.c b/net/ceph/messenger_v2.c index d09a39ff2cf0..9e3f95d5e425 100644 --- a/net/ceph/messenger_v2.c +++ b/net/ceph/messenger_v2.c @@ -1966,7 +1966,6 @@ static int prepare_sparse_read_cont(struct ceph_connection *con) bv.bv_offset = 0; } set_in_bvec(con, &bv); - con->v2.data_len_remain -= bv.bv_len; return 0; } } else if (iov_iter_is_kvec(&con->v2.in_iter)) {