From patchwork Sat Sep 30 05:00:10 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Wedson Almeida Filho X-Patchwork-Id: 13404947 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 CD120E7734F for ; Sat, 30 Sep 2023 05:02:05 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S234040AbjI3FCE (ORCPT ); Sat, 30 Sep 2023 01:02:04 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:38880 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S234022AbjI3FBe (ORCPT ); Sat, 30 Sep 2023 01:01:34 -0400 Received: from mail-pj1-x1029.google.com (mail-pj1-x1029.google.com [IPv6:2607:f8b0:4864:20::1029]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 1F30FCF5; Fri, 29 Sep 2023 22:01:19 -0700 (PDT) Received: by mail-pj1-x1029.google.com with SMTP id 98e67ed59e1d1-2774f6943b1so8389147a91.0; Fri, 29 Sep 2023 22:01:19 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20230601; t=1696050078; x=1696654878; darn=vger.kernel.org; h=content-transfer-encoding:mime-version:references:in-reply-to :message-id:date:subject:cc:to:from:from:to:cc:subject:date :message-id:reply-to; bh=moKe2A8erbuVLM63RNmgB8NBsCNapPq9yq0WoyHwDmA=; b=lVOh9VrIg2nHAqimSf5mDWMmLaMsjN66R02bvnGHtoKo0G2dwCmHLbuiXgJoqf4oYz 7KpkKugKRuBTMjuXUG8M6Hz63eaSeajASjwOM2brUVl6lcS78jLAAhYHcyiSXEUzn6UY /YtLASjjlDx5vJWg3SVJ3TQObsKdU5hSAMGko8149z/b+cqkkank1cF5lV4zgzQarEck jUA2dVHH3a7c052SbzubZ/QTd0GYJCcvxYaQc25XnIlOUnoFy1MAcBVx2BvPfXvEOYQK NxZXB82tu3TVgu5grpDpCuao/LDYcJHv4oPeZdE2Vcl3Uxwl7KaEQxN912JFXYQDlhhg YbJQ== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20230601; t=1696050078; x=1696654878; 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=moKe2A8erbuVLM63RNmgB8NBsCNapPq9yq0WoyHwDmA=; b=LASJagE8y5klTlW1gvDuYifSTNoqyw6660n4kZCU9uPLhSUqdRcGdUbGfgfYwgVk3d 0dbii0wzow8SktjXYplK+96JsxLp0YjKygkBE8wyPTM5wCBIOfVUWEzxa7Ut5CzjmH9C wif2pAUU1sfp+cBVTxSN7YW06wFoSOkUx03pWS9vYeiBSIaclMHvzP+U1iGBXbKdh4fW NJ7zLfv+SG112CdRmwzycTVerzhdVhGi/SnC4GNliafhdhlPQ62xWgbTXIPhJ7ZB+fCK jvjexbhgOEUA7/3OVKZXtvauym+i1KGondA2U1rTs3ax0864nmrR7idyUuQfKTIX7ttg GQag== X-Gm-Message-State: AOJu0Yw3ECrOw3yLt39V3zq4o5H7v61DKXVVgf5G0eMRxPe6Gc1dIxPd KydF4+ZH96VyZoKN/x4iG3w= X-Google-Smtp-Source: AGHT+IG9xUPKggQukfGlY8IPKqDIaRFyp8HV3eI9857ynlu4H7izyVX8aLW+YGzrRTPz4rA+zvfUXg== X-Received: by 2002:a17:90b:383:b0:26d:416a:b027 with SMTP id ga3-20020a17090b038300b0026d416ab027mr6303354pjb.31.1696050078485; Fri, 29 Sep 2023 22:01:18 -0700 (PDT) Received: from wedsonaf-dev.home.lan ([189.124.190.154]) by smtp.googlemail.com with ESMTPSA id y10-20020a17090322ca00b001c322a41188sm392136plg.117.2023.09.29.22.01.14 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Fri, 29 Sep 2023 22:01:18 -0700 (PDT) From: Wedson Almeida Filho To: Alexander Viro , Christian Brauner , linux-fsdevel@vger.kernel.org Cc: linux-kernel@vger.kernel.org, Wedson Almeida Filho , Xiubo Li , Ilya Dryomov , Jeff Layton , ceph-devel@vger.kernel.org Subject: [PATCH 06/29] ceph: move ceph_xattr_handlers to .rodata Date: Sat, 30 Sep 2023 02:00:10 -0300 Message-Id: <20230930050033.41174-7-wedsonaf@gmail.com> X-Mailer: git-send-email 2.34.1 In-Reply-To: <20230930050033.41174-1-wedsonaf@gmail.com> References: <20230930050033.41174-1-wedsonaf@gmail.com> MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: linux-fsdevel@vger.kernel.org From: Wedson Almeida Filho This makes it harder for accidental or malicious changes to ceph_xattr_handlers at runtime. Cc: Xiubo Li Cc: Ilya Dryomov Cc: Jeff Layton Cc: ceph-devel@vger.kernel.org Signed-off-by: Wedson Almeida Filho Acked-by: Ilya Dryomov --- fs/ceph/super.h | 2 +- fs/ceph/xattr.c | 2 +- 2 files changed, 2 insertions(+), 2 deletions(-) diff --git a/fs/ceph/super.h b/fs/ceph/super.h index 3bfddf34d488..b40be1a0f778 100644 --- a/fs/ceph/super.h +++ b/fs/ceph/super.h @@ -1089,7 +1089,7 @@ ssize_t __ceph_getxattr(struct inode *, const char *, void *, size_t); extern ssize_t ceph_listxattr(struct dentry *, char *, size_t); extern struct ceph_buffer *__ceph_build_xattrs_blob(struct ceph_inode_info *ci); extern void __ceph_destroy_xattrs(struct ceph_inode_info *ci); -extern const struct xattr_handler *ceph_xattr_handlers[]; +extern const struct xattr_handler * const ceph_xattr_handlers[]; struct ceph_acl_sec_ctx { #ifdef CONFIG_CEPH_FS_POSIX_ACL diff --git a/fs/ceph/xattr.c b/fs/ceph/xattr.c index 806183959c47..0350d7465bbb 100644 --- a/fs/ceph/xattr.c +++ b/fs/ceph/xattr.c @@ -1416,7 +1416,7 @@ void ceph_release_acl_sec_ctx(struct ceph_acl_sec_ctx *as_ctx) * List of handlers for synthetic system.* attributes. Other * attributes are handled directly. */ -const struct xattr_handler *ceph_xattr_handlers[] = { +const struct xattr_handler * const ceph_xattr_handlers[] = { &ceph_other_xattr_handler, NULL, };