linux-ext4 - Re: [PATCH 28/29] iomap: build the block based code conditionally

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Date:   Tue, 23 Nov 2021 15:13:25 -0800
From:   "Darrick J. Wong" <djwong@...nel.org>
To:     Christoph Hellwig <hch@....de>
Cc:     Dan Williams <dan.j.williams@...el.com>,
        Mike Snitzer <snitzer@...hat.com>,
        Ira Weiny <ira.weiny@...el.com>, dm-devel@...hat.com,
        linux-xfs@...r.kernel.org, nvdimm@...ts.linux.dev,
        linux-s390@...r.kernel.org, linux-fsdevel@...r.kernel.org,
        linux-erofs@...ts.ozlabs.org, linux-ext4@...r.kernel.org,
        virtualization@...ts.linux-foundation.org
Subject: Re: [PATCH 28/29] iomap: build the block based code conditionally

On Tue, Nov 09, 2021 at 09:33:08AM +0100, Christoph Hellwig wrote:
> Only build the block based iomap code if CONFIG_BLOCK is set.  Currently
> that is always the case, but it will change soon.
> 
> Signed-off-by: Christoph Hellwig <hch@....de>

Looks ok,
Reviewed-by: Darrick J. Wong <djwong@...nel.org>

--D

> ---
>  fs/Kconfig        | 4 ++--
>  fs/iomap/Makefile | 4 ++--
>  2 files changed, 4 insertions(+), 4 deletions(-)
> 
> diff --git a/fs/Kconfig b/fs/Kconfig
> index a6313a969bc5f..6d608330a096e 100644
> --- a/fs/Kconfig
> +++ b/fs/Kconfig
> @@ -15,11 +15,11 @@ config VALIDATE_FS_PARSER
>  	  Enable this to perform validation of the parameter description for a
>  	  filesystem when it is registered.
>  
> -if BLOCK
> -
>  config FS_IOMAP
>  	bool
>  
> +if BLOCK
> +
>  source "fs/ext2/Kconfig"
>  source "fs/ext4/Kconfig"
>  source "fs/jbd2/Kconfig"
> diff --git a/fs/iomap/Makefile b/fs/iomap/Makefile
> index 4143a3ff89dbc..fc070184b7faa 100644
> --- a/fs/iomap/Makefile
> +++ b/fs/iomap/Makefile
> @@ -9,9 +9,9 @@ ccflags-y += -I $(srctree)/$(src)		# needed for trace events
>  obj-$(CONFIG_FS_IOMAP)		+= iomap.o
>  
>  iomap-y				+= trace.o \
> -				   buffered-io.o \
> +				   iter.o
> +iomap-$(CONFIG_BLOCK)		+= buffered-io.o \
>  				   direct-io.o \
>  				   fiemap.o \
> -				   iter.o \
>  				   seek.o
>  iomap-$(CONFIG_SWAP)		+= swapfile.o
> -- 
> 2.30.2
>