From patchwork Thu Aug 3 13:59:44 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Aleksandr Mikhalitsyn X-Patchwork-Id: 710311 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id 3E32CC04A94 for ; Thu, 3 Aug 2023 14:01:01 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S236506AbjHCOA7 (ORCPT ); Thu, 3 Aug 2023 10:00:59 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:47256 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S236420AbjHCOAl (ORCPT ); Thu, 3 Aug 2023 10:00:41 -0400 Received: from smtp-relay-internal-1.canonical.com (smtp-relay-internal-1.canonical.com [185.125.188.123]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 6A5FE211B for ; Thu, 3 Aug 2023 07:00:16 -0700 (PDT) Received: from mail-ed1-f70.google.com (mail-ed1-f70.google.com [209.85.208.70]) (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 smtp-relay-internal-1.canonical.com (Postfix) with ESMTPS id 65D4D413CD for ; Thu, 3 Aug 2023 14:00:13 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=canonical.com; s=20210705; t=1691071214; bh=GFNwWvhavDkNrI4eqwez7OWrv+w+Iw1WNhnwQW/Fw7E=; h=From:To:Cc:Subject:Date:Message-Id:In-Reply-To:References: MIME-Version; b=kJ7jaag9qoW/v/GDVLSWB2NvvzbRwSLLIsn9wjPbzrXIqsJS5Ta/yDMbgq8VKlstQ 9AVfRVwks7t05MaL2sbCY60BRs5yQ7mArPVKuDz7BYwROEUv0RlxwxyW6vu0bO84vT I85mTa4pIoy3D/kidbBiVGNdpWPatZuYgLXLMS24SOZb3xfIsJ5tOWigJNi22s/axM r9+rxf30Ir3D7xEdghGMPf+E1FHItcD0JbozAR5RouN/xMUYIm/Cmf6Ym1NZHSVmmu GKmUYmElAZIrkSfk1gkd9KitGiIfv8OAYcctbqlFy2frxzrOLrNtGrU7Dq0bcdOrvW jxBRQFkQ+bFsw== Received: by mail-ed1-f70.google.com with SMTP id 4fb4d7f45d1cf-52256d84ab1so693255a12.3 for ; Thu, 03 Aug 2023 07:00:13 -0700 (PDT) X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20221208; t=1691071212; x=1691676012; h=content-transfer-encoding:mime-version:references:in-reply-to :message-id:date:subject:cc:to:from:x-gm-message-state:from:to:cc :subject:date:message-id:reply-to; bh=GFNwWvhavDkNrI4eqwez7OWrv+w+Iw1WNhnwQW/Fw7E=; b=ldg5v5vce4J0g++IZPAfJ8uBoXWZCf51x7BkqphfA8rTMgiZW05FIzwUdiiwxQGXai v20D7ot13+LQlvuLBa2hTWWdROJ34Zw7aGWNuOI3kTWkG/6WgQEVbdx4eIZsMUBB3OGP 7b6fQo4I67exL8J5bfbNWN0sa0znRq7HuzkSXXVhIXO9r9xG/dBameZVsipgHIcPKlo/ kAmqvD7wrqmy5t6LaaQn40DkQDmwFswKDqLYAgg8gSSlIoBR92Q9Q+++A+baSrCh1ybE csCKurQTtTeQw4TIY2Y2W9yDHQAYc9y5qV8G1rtOkrZG+RA2VGImA0TiHGKKOrkV0I/z /oDg== X-Gm-Message-State: ABy/qLYK8idhql++w5z1uX0L3ZC9ENdJLKX2a0n7olUAANReSOJSJuOU Fntp3DqX27+z1MLnzkJ5509nbJohX0Z84ZUhDUObfuUVZYK+Pj0DBswyDusEbDx8oJe2VoH0Tz1 sVmBxvTGgLR5r1jecDlEyapIKIX10Zdi4u79gS4g= X-Received: by 2002:aa7:c49a:0:b0:522:3855:7ec5 with SMTP id m26-20020aa7c49a000000b0052238557ec5mr8584099edq.10.1691071212141; Thu, 03 Aug 2023 07:00:12 -0700 (PDT) X-Google-Smtp-Source: APBJJlEfIOUItlo0hjwrY4HJh2AtdBwv8To0WNWjW3o7KEaguO5IXHRwEyXe3XNgge+1GeScqXxVOA== X-Received: by 2002:aa7:c49a:0:b0:522:3855:7ec5 with SMTP id m26-20020aa7c49a000000b0052238557ec5mr8584083edq.10.1691071211914; Thu, 03 Aug 2023 07:00:11 -0700 (PDT) Received: from amikhalitsyn.local (dslb-088-066-182-192.088.066.pools.vodafone-ip.de. [88.66.182.192]) by smtp.gmail.com with ESMTPSA id bc21-20020a056402205500b0052229882fb0sm10114822edb.71.2023.08.03.07.00.10 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Thu, 03 Aug 2023 07:00:11 -0700 (PDT) From: Alexander Mikhalitsyn To: xiubli@redhat.com Cc: brauner@kernel.org, stgraber@ubuntu.com, linux-fsdevel@vger.kernel.org, Jeff Layton , Ilya Dryomov , ceph-devel@vger.kernel.org, Alexander Mikhalitsyn , Alexander Viro , Seth Forshee , linux-kernel@vger.kernel.org Subject: [PATCH v8 01/12] fs: export mnt_idmap_get/mnt_idmap_put Date: Thu, 3 Aug 2023 15:59:44 +0200 Message-Id: <20230803135955.230449-2-aleksandr.mikhalitsyn@canonical.com> X-Mailer: git-send-email 2.34.1 In-Reply-To: <20230803135955.230449-1-aleksandr.mikhalitsyn@canonical.com> References: <20230803135955.230449-1-aleksandr.mikhalitsyn@canonical.com> MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: ceph-devel@vger.kernel.org These helpers are required to support idmapped mounts in the Cephfs. Cc: Christian Brauner Cc: Xiubo Li Cc: Jeff Layton Cc: Ilya Dryomov Cc: ceph-devel@vger.kernel.org Cc: linux-fsdevel@vger.kernel.org Signed-off-by: Alexander Mikhalitsyn Reviewed-by: Christian Brauner --- v3: - EXPORT_SYMBOL -> EXPORT_SYMBOL_GPL as Christoph Hellwig suggested --- fs/mnt_idmapping.c | 2 ++ include/linux/mnt_idmapping.h | 3 +++ 2 files changed, 5 insertions(+) diff --git a/fs/mnt_idmapping.c b/fs/mnt_idmapping.c index 4905665c47d0..57d1dedf3f8f 100644 --- a/fs/mnt_idmapping.c +++ b/fs/mnt_idmapping.c @@ -256,6 +256,7 @@ struct mnt_idmap *mnt_idmap_get(struct mnt_idmap *idmap) return idmap; } +EXPORT_SYMBOL_GPL(mnt_idmap_get); /** * mnt_idmap_put - put a reference to an idmapping @@ -271,3 +272,4 @@ void mnt_idmap_put(struct mnt_idmap *idmap) kfree(idmap); } } +EXPORT_SYMBOL_GPL(mnt_idmap_put); diff --git a/include/linux/mnt_idmapping.h b/include/linux/mnt_idmapping.h index 057c89867aa2..b8da2db4ecd2 100644 --- a/include/linux/mnt_idmapping.h +++ b/include/linux/mnt_idmapping.h @@ -115,6 +115,9 @@ static inline bool vfsgid_eq_kgid(vfsgid_t vfsgid, kgid_t kgid) int vfsgid_in_group_p(vfsgid_t vfsgid); +struct mnt_idmap *mnt_idmap_get(struct mnt_idmap *idmap); +void mnt_idmap_put(struct mnt_idmap *idmap); + vfsuid_t make_vfsuid(struct mnt_idmap *idmap, struct user_namespace *fs_userns, kuid_t kuid);