From mboxrd@z Thu Jan 1 00:00:00 1970 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 us-smtp-delivery-124.mimecast.com (us-smtp-delivery-124.mimecast.com [170.10.133.124]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.lore.kernel.org (Postfix) with ESMTPS id DD67EC433F5 for ; Tue, 23 Nov 2021 23:13:20 +0000 (UTC) Received: from mimecast-mx01.redhat.com (mimecast-mx01.redhat.com [209.132.183.4]) by relay.mimecast.com with ESMTP with STARTTLS (version=TLSv1.2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id us-mta-564-iXpAy7wFNm61Ag1Zqs9KqQ-1; Tue, 23 Nov 2021 18:13:14 -0500 X-MC-Unique: iXpAy7wFNm61Ag1Zqs9KqQ-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 5C4F58066FD; Tue, 23 Nov 2021 23:13:10 +0000 (UTC) Received: from colo-mx.corp.redhat.com (colo-mx01.intmail.prod.int.phx2.redhat.com [10.5.11.20]) by smtp.corp.redhat.com (Postfix) with ESMTPS id 3784A19D9F; Tue, 23 Nov 2021 23:13:10 +0000 (UTC) Received: from lists01.pubmisc.prod.ext.phx2.redhat.com (lists01.pubmisc.prod.ext.phx2.redhat.com [10.5.19.33]) by colo-mx.corp.redhat.com (Postfix) with ESMTP id 0F0DD1832E81; Tue, 23 Nov 2021 23:13:10 +0000 (UTC) Received: from smtp.corp.redhat.com (int-mx01.intmail.prod.int.rdu2.redhat.com [10.11.54.1]) by lists01.pubmisc.prod.ext.phx2.redhat.com (8.13.8/8.13.8) with ESMTP id 1ANND8T7027178 for ; Tue, 23 Nov 2021 18:13:09 -0500 Received: by smtp.corp.redhat.com (Postfix) id CB2604010FFC; Tue, 23 Nov 2021 23:13:08 +0000 (UTC) Received: from mimecast-mx02.redhat.com (mimecast02.extmail.prod.ext.rdu2.redhat.com [10.11.55.18]) by smtp.corp.redhat.com (Postfix) with ESMTPS id C63D8400DB2F for ; Tue, 23 Nov 2021 23:13:08 +0000 (UTC) Received: from us-smtp-1.mimecast.com (us-smtp-1.mimecast.com [205.139.110.61]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mimecast-mx02.redhat.com (Postfix) with ESMTPS id ADB3F800141 for ; Tue, 23 Nov 2021 23:13:08 +0000 (UTC) Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by relay.mimecast.com with ESMTP with STARTTLS (version=TLSv1.2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id us-mta-478-LqyH9cJ3MWK6gX2BNgflzw-1; Tue, 23 Nov 2021 18:13:07 -0500 X-MC-Unique: LqyH9cJ3MWK6gX2BNgflzw-1 Received: by mail.kernel.org (Postfix) with ESMTPSA id 89AA960F9F; Tue, 23 Nov 2021 23:13:05 +0000 (UTC) Date: Tue, 23 Nov 2021 15:13:05 -0800 From: "Darrick J. Wong" To: Christoph Hellwig Message-ID: <20211123231305.GU266024@magnolia> References: <20211109083309.584081-1-hch@lst.de> <20211109083309.584081-28-hch@lst.de> MIME-Version: 1.0 In-Reply-To: <20211109083309.584081-28-hch@lst.de> X-Mimecast-Impersonation-Protect: Policy=CLT - Impersonation Protection Definition; Similar Internal Domain=false; Similar Monitored External Domain=false; Custom External Domain=false; Mimecast External Domain=false; Newly Observed Domain=false; Internal User Name=false; Custom Display Name List=false; Reply-to Address Mismatch=false; Targeted Threat Dictionary=false; Mimecast Threat Dictionary=false; Custom Threat Dictionary=false X-Scanned-By: MIMEDefang 2.84 on 10.11.54.1 X-loop: dm-devel@redhat.com Cc: nvdimm@lists.linux.dev, Mike Snitzer , linux-s390@vger.kernel.org, linux-erofs@lists.ozlabs.org, virtualization@lists.linux-foundation.org, linux-xfs@vger.kernel.org, dm-devel@redhat.com, linux-fsdevel@vger.kernel.org, Dan Williams , linux-ext4@vger.kernel.org, Ira Weiny Subject: Re: [dm-devel] [PATCH 27/29] dax: fix up some of the block device related ifdefs X-BeenThere: dm-devel@redhat.com X-Mailman-Version: 2.1.12 Precedence: junk List-Id: device-mapper development List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: dm-devel-bounces@redhat.com Errors-To: dm-devel-bounces@redhat.com X-Scanned-By: MIMEDefang 2.84 on 10.5.11.23 Authentication-Results: relay.mimecast.com; auth=pass smtp.auth=CUSA124A263 smtp.mailfrom=dm-devel-bounces@redhat.com X-Mimecast-Spam-Score: 0 X-Mimecast-Originator: redhat.com Content-Disposition: inline Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit On Tue, Nov 09, 2021 at 09:33:07AM +0100, Christoph Hellwig wrote: > The DAX device <-> block device association is only enabled if > CONFIG_BLOCK is enabled. Update dax.h to account for that and use > the right conditions for the fs_put_dax stub as well. > > Signed-off-by: Christoph Hellwig Looks ok, Reviewed-by: Darrick J. Wong --D > --- > include/linux/dax.h | 41 ++++++++++++++++++++--------------------- > 1 file changed, 20 insertions(+), 21 deletions(-) > > diff --git a/include/linux/dax.h b/include/linux/dax.h > index 90f95deff504d..5568d3dca941b 100644 > --- a/include/linux/dax.h > +++ b/include/linux/dax.h > @@ -108,28 +108,15 @@ static inline bool daxdev_mapping_supported(struct vm_area_struct *vma, > #endif > > struct writeback_control; > -#if IS_ENABLED(CONFIG_FS_DAX) > +#if defined(CONFIG_BLOCK) && defined(CONFIG_FS_DAX) > int dax_add_host(struct dax_device *dax_dev, struct gendisk *disk); > void dax_remove_host(struct gendisk *disk); > - > +struct dax_device *fs_dax_get_by_bdev(struct block_device *bdev, > + u64 *start_off); > static inline void fs_put_dax(struct dax_device *dax_dev) > { > put_dax(dax_dev); > } > - > -struct dax_device *fs_dax_get_by_bdev(struct block_device *bdev, > - u64 *start_off); > -int dax_writeback_mapping_range(struct address_space *mapping, > - struct dax_device *dax_dev, struct writeback_control *wbc); > - > -struct page *dax_layout_busy_page(struct address_space *mapping); > -struct page *dax_layout_busy_page_range(struct address_space *mapping, loff_t start, loff_t end); > -dax_entry_t dax_lock_page(struct page *page); > -void dax_unlock_page(struct page *page, dax_entry_t cookie); > -int dax_zero_range(struct inode *inode, loff_t pos, loff_t len, bool *did_zero, > - const struct iomap_ops *ops); > -int dax_truncate_page(struct inode *inode, loff_t pos, bool *did_zero, > - const struct iomap_ops *ops); > #else > static inline int dax_add_host(struct dax_device *dax_dev, struct gendisk *disk) > { > @@ -138,17 +125,29 @@ static inline int dax_add_host(struct dax_device *dax_dev, struct gendisk *disk) > static inline void dax_remove_host(struct gendisk *disk) > { > } > - > -static inline void fs_put_dax(struct dax_device *dax_dev) > -{ > -} > - > static inline struct dax_device *fs_dax_get_by_bdev(struct block_device *bdev, > u64 *start_off) > { > return NULL; > } > +static inline void fs_put_dax(struct dax_device *dax_dev) > +{ > +} > +#endif /* CONFIG_BLOCK && CONFIG_FS_DAX */ > + > +#if IS_ENABLED(CONFIG_FS_DAX) > +int dax_writeback_mapping_range(struct address_space *mapping, > + struct dax_device *dax_dev, struct writeback_control *wbc); > > +struct page *dax_layout_busy_page(struct address_space *mapping); > +struct page *dax_layout_busy_page_range(struct address_space *mapping, loff_t start, loff_t end); > +dax_entry_t dax_lock_page(struct page *page); > +void dax_unlock_page(struct page *page, dax_entry_t cookie); > +int dax_zero_range(struct inode *inode, loff_t pos, loff_t len, bool *did_zero, > + const struct iomap_ops *ops); > +int dax_truncate_page(struct inode *inode, loff_t pos, bool *did_zero, > + const struct iomap_ops *ops); > +#else > static inline struct page *dax_layout_busy_page(struct address_space *mapping) > { > return NULL; > -- > 2.30.2 > -- dm-devel mailing list dm-devel@redhat.com https://listman.redhat.com/mailman/listinfo/dm-devel From mboxrd@z Thu Jan 1 00:00:00 1970 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 lists.ozlabs.org (lists.ozlabs.org [112.213.38.117]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.lore.kernel.org (Postfix) with ESMTPS id A1856C433F5 for ; Tue, 23 Nov 2021 23:13:13 +0000 (UTC) Received: from boromir.ozlabs.org (localhost [IPv6:::1]) by lists.ozlabs.org (Postfix) with ESMTP id 4HzKgX08lNz2ync for ; Wed, 24 Nov 2021 10:13:12 +1100 (AEDT) Authentication-Results: lists.ozlabs.org; dkim=fail reason="signature verification failed" (2048-bit key; unprotected) header.d=kernel.org header.i=@kernel.org header.a=rsa-sha256 header.s=k20201202 header.b=IzacBFBF; dkim-atps=neutral Authentication-Results: lists.ozlabs.org; spf=pass (sender SPF authorized) smtp.mailfrom=kernel.org (client-ip=198.145.29.99; helo=mail.kernel.org; envelope-from=djwong@kernel.org; receiver=) Authentication-Results: lists.ozlabs.org; dkim=pass (2048-bit key; unprotected) header.d=kernel.org header.i=@kernel.org header.a=rsa-sha256 header.s=k20201202 header.b=IzacBFBF; dkim-atps=neutral Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by lists.ozlabs.org (Postfix) with ESMTPS id 4HzKgR4hGQz2yLd for ; Wed, 24 Nov 2021 10:13:07 +1100 (AEDT) Received: by mail.kernel.org (Postfix) with ESMTPSA id 89AA960F9F; Tue, 23 Nov 2021 23:13:05 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1637709185; bh=qI8k8SWcfOTf0dPmRhxg9uqxHXWp63uAbeW4/0Ozc7A=; h=Date:From:To:Cc:Subject:References:In-Reply-To:From; b=IzacBFBFhYh1FXrg7vX6C+KOP1OJxBbbaxlskfiRzRHZEcu+QVgT6TLPVe1C3qHil 8w6H7EupDtAbvwL+YhPe1535bL7h0UBuS4dO0iEFrkQouRhqGT1M5iu0zTIt84UP35 UJ8kQ0pSgv51CTWUeTa9oG2ShGEe8lGowjb1HLniNGys8CsRX+qESFdCphOZxlg8Nh SDWcaD/73OkeMq4lrTWsV3ChlvtjYmqSu0CE2EZvGeLbKpkBTx+DjBLn7sVm+YvSXb F0vt8O+an8SwKPzp9UrOyY70tBZndLxDC6VVIAk3CrRX19qSMcWPlKcStgHi/ulFjZ gJy9vInPH0O9g== Date: Tue, 23 Nov 2021 15:13:05 -0800 From: "Darrick J. Wong" To: Christoph Hellwig Subject: Re: [PATCH 27/29] dax: fix up some of the block device related ifdefs Message-ID: <20211123231305.GU266024@magnolia> References: <20211109083309.584081-1-hch@lst.de> <20211109083309.584081-28-hch@lst.de> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20211109083309.584081-28-hch@lst.de> X-BeenThere: linux-erofs@lists.ozlabs.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: Development of Linux EROFS file system List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: nvdimm@lists.linux.dev, Mike Snitzer , linux-s390@vger.kernel.org, linux-erofs@lists.ozlabs.org, virtualization@lists.linux-foundation.org, linux-xfs@vger.kernel.org, dm-devel@redhat.com, linux-fsdevel@vger.kernel.org, Dan Williams , linux-ext4@vger.kernel.org, Ira Weiny Errors-To: linux-erofs-bounces+linux-erofs=archiver.kernel.org@lists.ozlabs.org Sender: "Linux-erofs" On Tue, Nov 09, 2021 at 09:33:07AM +0100, Christoph Hellwig wrote: > The DAX device <-> block device association is only enabled if > CONFIG_BLOCK is enabled. Update dax.h to account for that and use > the right conditions for the fs_put_dax stub as well. > > Signed-off-by: Christoph Hellwig Looks ok, Reviewed-by: Darrick J. Wong --D > --- > include/linux/dax.h | 41 ++++++++++++++++++++--------------------- > 1 file changed, 20 insertions(+), 21 deletions(-) > > diff --git a/include/linux/dax.h b/include/linux/dax.h > index 90f95deff504d..5568d3dca941b 100644 > --- a/include/linux/dax.h > +++ b/include/linux/dax.h > @@ -108,28 +108,15 @@ static inline bool daxdev_mapping_supported(struct vm_area_struct *vma, > #endif > > struct writeback_control; > -#if IS_ENABLED(CONFIG_FS_DAX) > +#if defined(CONFIG_BLOCK) && defined(CONFIG_FS_DAX) > int dax_add_host(struct dax_device *dax_dev, struct gendisk *disk); > void dax_remove_host(struct gendisk *disk); > - > +struct dax_device *fs_dax_get_by_bdev(struct block_device *bdev, > + u64 *start_off); > static inline void fs_put_dax(struct dax_device *dax_dev) > { > put_dax(dax_dev); > } > - > -struct dax_device *fs_dax_get_by_bdev(struct block_device *bdev, > - u64 *start_off); > -int dax_writeback_mapping_range(struct address_space *mapping, > - struct dax_device *dax_dev, struct writeback_control *wbc); > - > -struct page *dax_layout_busy_page(struct address_space *mapping); > -struct page *dax_layout_busy_page_range(struct address_space *mapping, loff_t start, loff_t end); > -dax_entry_t dax_lock_page(struct page *page); > -void dax_unlock_page(struct page *page, dax_entry_t cookie); > -int dax_zero_range(struct inode *inode, loff_t pos, loff_t len, bool *did_zero, > - const struct iomap_ops *ops); > -int dax_truncate_page(struct inode *inode, loff_t pos, bool *did_zero, > - const struct iomap_ops *ops); > #else > static inline int dax_add_host(struct dax_device *dax_dev, struct gendisk *disk) > { > @@ -138,17 +125,29 @@ static inline int dax_add_host(struct dax_device *dax_dev, struct gendisk *disk) > static inline void dax_remove_host(struct gendisk *disk) > { > } > - > -static inline void fs_put_dax(struct dax_device *dax_dev) > -{ > -} > - > static inline struct dax_device *fs_dax_get_by_bdev(struct block_device *bdev, > u64 *start_off) > { > return NULL; > } > +static inline void fs_put_dax(struct dax_device *dax_dev) > +{ > +} > +#endif /* CONFIG_BLOCK && CONFIG_FS_DAX */ > + > +#if IS_ENABLED(CONFIG_FS_DAX) > +int dax_writeback_mapping_range(struct address_space *mapping, > + struct dax_device *dax_dev, struct writeback_control *wbc); > > +struct page *dax_layout_busy_page(struct address_space *mapping); > +struct page *dax_layout_busy_page_range(struct address_space *mapping, loff_t start, loff_t end); > +dax_entry_t dax_lock_page(struct page *page); > +void dax_unlock_page(struct page *page, dax_entry_t cookie); > +int dax_zero_range(struct inode *inode, loff_t pos, loff_t len, bool *did_zero, > + const struct iomap_ops *ops); > +int dax_truncate_page(struct inode *inode, loff_t pos, bool *did_zero, > + const struct iomap_ops *ops); > +#else > static inline struct page *dax_layout_busy_page(struct address_space *mapping) > { > return NULL; > -- > 2.30.2 > From mboxrd@z Thu Jan 1 00:00:00 1970 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 2B271C43217 for ; Tue, 23 Nov 2021 23:13:10 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S234637AbhKWXQQ (ORCPT ); Tue, 23 Nov 2021 18:16:16 -0500 Received: from mail.kernel.org ([198.145.29.99]:32962 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S233989AbhKWXQO (ORCPT ); Tue, 23 Nov 2021 18:16:14 -0500 Received: by mail.kernel.org (Postfix) with ESMTPSA id 89AA960F9F; Tue, 23 Nov 2021 23:13:05 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1637709185; bh=qI8k8SWcfOTf0dPmRhxg9uqxHXWp63uAbeW4/0Ozc7A=; h=Date:From:To:Cc:Subject:References:In-Reply-To:From; b=IzacBFBFhYh1FXrg7vX6C+KOP1OJxBbbaxlskfiRzRHZEcu+QVgT6TLPVe1C3qHil 8w6H7EupDtAbvwL+YhPe1535bL7h0UBuS4dO0iEFrkQouRhqGT1M5iu0zTIt84UP35 UJ8kQ0pSgv51CTWUeTa9oG2ShGEe8lGowjb1HLniNGys8CsRX+qESFdCphOZxlg8Nh SDWcaD/73OkeMq4lrTWsV3ChlvtjYmqSu0CE2EZvGeLbKpkBTx+DjBLn7sVm+YvSXb F0vt8O+an8SwKPzp9UrOyY70tBZndLxDC6VVIAk3CrRX19qSMcWPlKcStgHi/ulFjZ gJy9vInPH0O9g== Date: Tue, 23 Nov 2021 15:13:05 -0800 From: "Darrick J. Wong" To: Christoph Hellwig Cc: Dan Williams , Mike Snitzer , Ira Weiny , dm-devel@redhat.com, linux-xfs@vger.kernel.org, nvdimm@lists.linux.dev, linux-s390@vger.kernel.org, linux-fsdevel@vger.kernel.org, linux-erofs@lists.ozlabs.org, linux-ext4@vger.kernel.org, virtualization@lists.linux-foundation.org Subject: Re: [PATCH 27/29] dax: fix up some of the block device related ifdefs Message-ID: <20211123231305.GU266024@magnolia> References: <20211109083309.584081-1-hch@lst.de> <20211109083309.584081-28-hch@lst.de> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20211109083309.584081-28-hch@lst.de> Precedence: bulk List-ID: X-Mailing-List: linux-ext4@vger.kernel.org On Tue, Nov 09, 2021 at 09:33:07AM +0100, Christoph Hellwig wrote: > The DAX device <-> block device association is only enabled if > CONFIG_BLOCK is enabled. Update dax.h to account for that and use > the right conditions for the fs_put_dax stub as well. > > Signed-off-by: Christoph Hellwig Looks ok, Reviewed-by: Darrick J. Wong --D > --- > include/linux/dax.h | 41 ++++++++++++++++++++--------------------- > 1 file changed, 20 insertions(+), 21 deletions(-) > > diff --git a/include/linux/dax.h b/include/linux/dax.h > index 90f95deff504d..5568d3dca941b 100644 > --- a/include/linux/dax.h > +++ b/include/linux/dax.h > @@ -108,28 +108,15 @@ static inline bool daxdev_mapping_supported(struct vm_area_struct *vma, > #endif > > struct writeback_control; > -#if IS_ENABLED(CONFIG_FS_DAX) > +#if defined(CONFIG_BLOCK) && defined(CONFIG_FS_DAX) > int dax_add_host(struct dax_device *dax_dev, struct gendisk *disk); > void dax_remove_host(struct gendisk *disk); > - > +struct dax_device *fs_dax_get_by_bdev(struct block_device *bdev, > + u64 *start_off); > static inline void fs_put_dax(struct dax_device *dax_dev) > { > put_dax(dax_dev); > } > - > -struct dax_device *fs_dax_get_by_bdev(struct block_device *bdev, > - u64 *start_off); > -int dax_writeback_mapping_range(struct address_space *mapping, > - struct dax_device *dax_dev, struct writeback_control *wbc); > - > -struct page *dax_layout_busy_page(struct address_space *mapping); > -struct page *dax_layout_busy_page_range(struct address_space *mapping, loff_t start, loff_t end); > -dax_entry_t dax_lock_page(struct page *page); > -void dax_unlock_page(struct page *page, dax_entry_t cookie); > -int dax_zero_range(struct inode *inode, loff_t pos, loff_t len, bool *did_zero, > - const struct iomap_ops *ops); > -int dax_truncate_page(struct inode *inode, loff_t pos, bool *did_zero, > - const struct iomap_ops *ops); > #else > static inline int dax_add_host(struct dax_device *dax_dev, struct gendisk *disk) > { > @@ -138,17 +125,29 @@ static inline int dax_add_host(struct dax_device *dax_dev, struct gendisk *disk) > static inline void dax_remove_host(struct gendisk *disk) > { > } > - > -static inline void fs_put_dax(struct dax_device *dax_dev) > -{ > -} > - > static inline struct dax_device *fs_dax_get_by_bdev(struct block_device *bdev, > u64 *start_off) > { > return NULL; > } > +static inline void fs_put_dax(struct dax_device *dax_dev) > +{ > +} > +#endif /* CONFIG_BLOCK && CONFIG_FS_DAX */ > + > +#if IS_ENABLED(CONFIG_FS_DAX) > +int dax_writeback_mapping_range(struct address_space *mapping, > + struct dax_device *dax_dev, struct writeback_control *wbc); > > +struct page *dax_layout_busy_page(struct address_space *mapping); > +struct page *dax_layout_busy_page_range(struct address_space *mapping, loff_t start, loff_t end); > +dax_entry_t dax_lock_page(struct page *page); > +void dax_unlock_page(struct page *page, dax_entry_t cookie); > +int dax_zero_range(struct inode *inode, loff_t pos, loff_t len, bool *did_zero, > + const struct iomap_ops *ops); > +int dax_truncate_page(struct inode *inode, loff_t pos, bool *did_zero, > + const struct iomap_ops *ops); > +#else > static inline struct page *dax_layout_busy_page(struct address_space *mapping) > { > return NULL; > -- > 2.30.2 >