From patchwork Tue Dec 1 16:59:36 2020 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Eric Sandeen X-Patchwork-Id: 1408938 Return-Path: X-Original-To: patchwork-incoming@ozlabs.org Delivered-To: patchwork-incoming@ozlabs.org Authentication-Results: ozlabs.org; spf=pass (sender SPF authorized) smtp.mailfrom=vger.kernel.org (client-ip=23.128.96.18; helo=vger.kernel.org; envelope-from=linux-ext4-owner@vger.kernel.org; receiver=) Authentication-Results: ozlabs.org; dmarc=pass (p=none dis=none) header.from=redhat.com Authentication-Results: ozlabs.org; dkim=pass (1024-bit key; unprotected) header.d=redhat.com header.i=@redhat.com header.a=rsa-sha256 header.s=mimecast20190719 header.b=KxUTFHTD; dkim-atps=neutral Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by ozlabs.org (Postfix) with ESMTP id 4ClpKV2bGJz9sW4 for ; Wed, 2 Dec 2020 04:01:34 +1100 (AEDT) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S2388866AbgLARBL (ORCPT ); Tue, 1 Dec 2020 12:01:11 -0500 Received: from us-smtp-delivery-124.mimecast.com ([63.128.21.124]:45351 "EHLO us-smtp-delivery-124.mimecast.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1729457AbgLARBL (ORCPT ); Tue, 1 Dec 2020 12:01:11 -0500 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=redhat.com; s=mimecast20190719; t=1606841984; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:cc:mime-version:mime-version:content-type:content-type: content-transfer-encoding:content-transfer-encoding: in-reply-to:in-reply-to:references:references; bh=T7i5uotD/IpTPlUrBO3NFp7pR07GWqIu1OIGoP+fxvk=; b=KxUTFHTDzur16+Ihg17A7SoWPKh+ppo0dPQ7LSTjYyYoQrfs6V7jfCG+bxnhVaNg35W3h2 j2pf9R+nUwVfWY1fpxy/1ir/1YHBCLlGRJgJpW/zTvT4lrQDrbVG0bqGZANw4i6JK7B9ct J1eM3S1kaxKOUH55HNZLNSirSSS6LDI= Received: from mimecast-mx01.redhat.com (mimecast-mx01.redhat.com [209.132.183.4]) (Using TLS) by relay.mimecast.com with ESMTP id us-mta-20-IHTBsiIEPnyyAbiv00K3AQ-1; Tue, 01 Dec 2020 11:59:39 -0500 X-MC-Unique: IHTBsiIEPnyyAbiv00K3AQ-1 Received: from smtp.corp.redhat.com (int-mx08.intmail.prod.int.phx2.redhat.com [10.5.11.23]) (using TLSv1.2 with cipher AECDH-AES256-SHA (256/256 bits)) (No client certificate requested) by mimecast-mx01.redhat.com (Postfix) with ESMTPS id DB0609A223; Tue, 1 Dec 2020 16:59:37 +0000 (UTC) Received: from liberator.sandeen.net (ovpn04.gateway.prod.ext.phx2.redhat.com [10.5.9.4]) by smtp.corp.redhat.com (Postfix) with ESMTP id 0D8C919C44; Tue, 1 Dec 2020 16:59:36 +0000 (UTC) Subject: [PATCH 2/2] statx: move STATX_ATTR_DAX attribute handling to filesystems To: torvalds@linux-foundation.org, Miklos Szeredi , Ira Weiny , David Howells Cc: linux-fsdevel@vger.kernel.org, linux-man@vger.kernel.org, linux-kernel@vger.kernel.org, xfs , linux-ext4@vger.kernel.org, Xiaoli Feng References: From: Eric Sandeen Message-ID: <05a0f4fd-7f62-8fbc-378d-886ccd5b3f11@redhat.com> Date: Tue, 1 Dec 2020 10:59:36 -0600 User-Agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10.15; rv:78.0) Gecko/20100101 Thunderbird/78.5.0 MIME-Version: 1.0 In-Reply-To: Content-Language: en-US X-Scanned-By: MIMEDefang 2.84 on 10.5.11.23 Precedence: bulk List-ID: X-Mailing-List: linux-ext4@vger.kernel.org It's a bit odd to set STATX_ATTR_DAX into the statx attributes in the VFS; while the VFS can detect the current DAX state, it is the filesystem which actually sets S_DAX on the inode, and the filesystem is the place that knows whether DAX is something that the "filesystem actually supports" [1] so that the statx attributes_mask can be properly set. So, move STATX_ATTR_DAX attribute setting to the individual dax-capable filesystems, and update the attributes_mask there as well. [1] 3209f68b3ca4 statx: Include a mask for stx_attributes in struct statx Signed-off-by: Eric Sandeen Reviewed-by: David Howells --- fs/ext2/inode.c | 6 +++++- fs/ext4/inode.c | 5 ++++- fs/stat.c | 3 --- fs/xfs/xfs_iops.c | 5 ++++- 4 files changed, 13 insertions(+), 6 deletions(-) diff --git a/fs/ext2/inode.c b/fs/ext2/inode.c index 11c5c6fe75bb..3550783a6ea0 100644 --- a/fs/ext2/inode.c +++ b/fs/ext2/inode.c @@ -1653,11 +1653,15 @@ int ext2_getattr(const struct path *path, struct kstat *stat, stat->attributes |= STATX_ATTR_IMMUTABLE; if (flags & EXT2_NODUMP_FL) stat->attributes |= STATX_ATTR_NODUMP; + if (IS_DAX(inode)) + stat->attributes |= STATX_ATTR_DAX; + stat->attributes_mask |= (STATX_ATTR_APPEND | STATX_ATTR_COMPRESSED | STATX_ATTR_ENCRYPTED | STATX_ATTR_IMMUTABLE | - STATX_ATTR_NODUMP); + STATX_ATTR_NODUMP | + STATX_ATTR_DAX); generic_fillattr(inode, stat); return 0; diff --git a/fs/ext4/inode.c b/fs/ext4/inode.c index 0d8385aea898..848a0f2b154e 100644 --- a/fs/ext4/inode.c +++ b/fs/ext4/inode.c @@ -5550,13 +5550,16 @@ int ext4_getattr(const struct path *path, struct kstat *stat, stat->attributes |= STATX_ATTR_NODUMP; if (flags & EXT4_VERITY_FL) stat->attributes |= STATX_ATTR_VERITY; + if (IS_DAX(inode)) + stat->attributes |= STATX_ATTR_DAX; stat->attributes_mask |= (STATX_ATTR_APPEND | STATX_ATTR_COMPRESSED | STATX_ATTR_ENCRYPTED | STATX_ATTR_IMMUTABLE | STATX_ATTR_NODUMP | - STATX_ATTR_VERITY); + STATX_ATTR_VERITY | + STATX_ATTR_DAX); generic_fillattr(inode, stat); return 0; diff --git a/fs/stat.c b/fs/stat.c index dacecdda2e79..5bd90949c69b 100644 --- a/fs/stat.c +++ b/fs/stat.c @@ -80,9 +80,6 @@ int vfs_getattr_nosec(const struct path *path, struct kstat *stat, if (IS_AUTOMOUNT(inode)) stat->attributes |= STATX_ATTR_AUTOMOUNT; - if (IS_DAX(inode)) - stat->attributes |= STATX_ATTR_DAX; - if (inode->i_op->getattr) return inode->i_op->getattr(path, stat, request_mask, query_flags); diff --git a/fs/xfs/xfs_iops.c b/fs/xfs/xfs_iops.c index 1414ab79eacf..56deda7042fd 100644 --- a/fs/xfs/xfs_iops.c +++ b/fs/xfs/xfs_iops.c @@ -575,10 +575,13 @@ xfs_vn_getattr( stat->attributes |= STATX_ATTR_APPEND; if (ip->i_d.di_flags & XFS_DIFLAG_NODUMP) stat->attributes |= STATX_ATTR_NODUMP; + if (IS_DAX(inode)) + stat->attributes |= STATX_ATTR_DAX; stat->attributes_mask |= (STATX_ATTR_IMMUTABLE | STATX_ATTR_APPEND | - STATX_ATTR_NODUMP); + STATX_ATTR_NODUMP | + STATX_ATTR_DAX); switch (inode->i_mode & S_IFMT) { case S_IFBLK: