From patchwork Fri May 14 14:13:13 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Olga Kornievskaia X-Patchwork-Id: 12257847 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=-15.8 required=3.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,FREEMAIL_FORGED_FROMDOMAIN,FREEMAIL_FROM, HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_CR_TRAILER,INCLUDES_PATCH, MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS,USER_AGENT_GIT 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 7C4C8C433B4 for ; Fri, 14 May 2021 14:13:30 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 4BF1061404 for ; Fri, 14 May 2021 14:13:30 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S232778AbhENOOk (ORCPT ); Fri, 14 May 2021 10:14:40 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:48954 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S230247AbhENOOk (ORCPT ); Fri, 14 May 2021 10:14:40 -0400 Received: from mail-io1-xd33.google.com (mail-io1-xd33.google.com [IPv6:2607:f8b0:4864:20::d33]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id C8867C061574 for ; Fri, 14 May 2021 07:13:28 -0700 (PDT) Received: by mail-io1-xd33.google.com with SMTP id i7so20752309ioa.12 for ; Fri, 14 May 2021 07:13:28 -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=ujEDos81NUbHnHXtpykY5JrCoGurJBkkkPFV1HlWdwc=; b=Lq2XcgD8KBuwcg654vEmDSzfSYzKMm3uSbkI/2G/ULacmGHTcMgzbVbCwP7NKSr4oJ 5pAIZd5rvFxik5SX8mCJsXunvCjZepvmIG0aZsFOZYhKknDAB1XmpbnA1CyrO8/3Str8 ncxq7X6I1CiNFao2GztmwzTAS7e+hENqdDQyj8bVSn8GYCYQhJwZKyP98F2PSNNANfhJ PvAmyJ24BXEggzWI0URslx8e1fHDnzVtdWr8Gg6kM3+qRukQ2Sxe0v9MPYvQAfH5Gchq VkPlXJjceOSnKNUpMyiWLp9SWt2Qh6jbpSNDkkroQzYKHDj49WEkmgorzWvbaW+dHej5 oExA== 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=ujEDos81NUbHnHXtpykY5JrCoGurJBkkkPFV1HlWdwc=; b=tSPZkHdMRcRKlE4DS0PwTozmgaRhylL5j1mRXVCnrsPk0P5umHuhmSlwaaPKA/prH7 Jfn0vfgRBF7W9KVGnFy9+xD04kZOnciY2mDWBUX6lhGySnGgovwVJkna9zOMM7wxZB0T OK54TU8+Sd5x7q+5NI3C3UBOw1rWVT5ytQ9t/KlFL1rooleQC4lXtqHvzpLcJZeKTtzZ hk8915gBXm2KA6vennCLjjS6UFvN3AOHYbJaldvuKI8h5NKun6MaI+E2HmMpRYDgPFZP d3y/qkQlIlnJdB37W6JyJc6U480Q86ssa8LlWJD15FHuTAMWakhBSewnUtXZ6h/MsOVp 892Q== X-Gm-Message-State: AOAM531QG3YZtGlxa4FlJH69LKi3beIhH0xGJ8uP0QxfHdasRzxA2HCn r/e+KD6X4W8psHcGrbmcBtqOCnG2Rulp9w== X-Google-Smtp-Source: ABdhPJzjTP8okmwI1gXbwfw1le6LC+rCYgghirwM06mw9uGmCcAub+btVP1LBTwDImK1jKZzKxlaxA== X-Received: by 2002:a6b:d20e:: with SMTP id q14mr35353521iob.200.1621001608333; Fri, 14 May 2021 07:13:28 -0700 (PDT) Received: from kolga-mac-1.attlocal.net ([2600:1700:6a10:2e90:a4f7:32c8:9c05:11a7]) by smtp.gmail.com with ESMTPSA id b189sm2639263iof.48.2021.05.14.07.13.27 (version=TLS1_2 cipher=ECDHE-ECDSA-AES128-GCM-SHA256 bits=128/128); Fri, 14 May 2021 07:13:27 -0700 (PDT) From: Olga Kornievskaia To: trond.myklebust@hammerspace.com, anna.schumaker@netapp.com Cc: linux-nfs@vger.kernel.org Subject: [PATCH v7 02/12] sunrpc: Create a client/ subdirectory in the sunrpc sysfs Date: Fri, 14 May 2021 10:13:13 -0400 Message-Id: <20210514141323.67922-3-olga.kornievskaia@gmail.com> X-Mailer: git-send-email 2.30.1 (Apple Git-130) In-Reply-To: <20210514141323.67922-1-olga.kornievskaia@gmail.com> References: <20210514141323.67922-1-olga.kornievskaia@gmail.com> MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: linux-nfs@vger.kernel.org From: Olga Kornievskaia For network namespace separation. Signed-off-by: Anna Schumaker Signed-off-by: Olga Kornievskaia --- net/sunrpc/sysfs.c | 43 +++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 43 insertions(+) diff --git a/net/sunrpc/sysfs.c b/net/sunrpc/sysfs.c index 27eda180ac5e..fa03e2ef836a 100644 --- a/net/sunrpc/sysfs.c +++ b/net/sunrpc/sysfs.c @@ -2,19 +2,62 @@ /* * Copyright (c) 2020 Anna Schumaker */ +#include #include static struct kset *rpc_sunrpc_kset; +static struct kobject *rpc_sunrpc_client_kobj; + +static void rpc_sysfs_object_release(struct kobject *kobj) +{ + kfree(kobj); +} + +static const struct kobj_ns_type_operations * +rpc_sysfs_object_child_ns_type(struct kobject *kobj) +{ + return &net_ns_type_operations; +} + +static struct kobj_type rpc_sysfs_object_type = { + .release = rpc_sysfs_object_release, + .sysfs_ops = &kobj_sysfs_ops, + .child_ns_type = rpc_sysfs_object_child_ns_type, +}; + +static struct kobject *rpc_sysfs_object_alloc(const char *name, + struct kset *kset, + struct kobject *parent) +{ + struct kobject *kobj; + + kobj = kzalloc(sizeof(*kobj), GFP_KERNEL); + if (kobj) { + kobj->kset = kset; + if (kobject_init_and_add(kobj, &rpc_sysfs_object_type, + parent, "%s", name) == 0) + return kobj; + kobject_put(kobj); + } + return NULL; +} int rpc_sysfs_init(void) { rpc_sunrpc_kset = kset_create_and_add("sunrpc", NULL, kernel_kobj); if (!rpc_sunrpc_kset) return -ENOMEM; + rpc_sunrpc_client_kobj = rpc_sysfs_object_alloc("client", rpc_sunrpc_kset, NULL); + if (!rpc_sunrpc_client_kobj) { + kset_unregister(rpc_sunrpc_kset); + rpc_sunrpc_client_kobj = NULL; + return -ENOMEM; + } return 0; } void rpc_sysfs_exit(void) { + kobject_put(rpc_sunrpc_client_kobj); kset_unregister(rpc_sunrpc_kset); }