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

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Message-Id: <20211129102203.2243509-29-hch@lst.de>
Date:   Mon, 29 Nov 2021 11:22:02 +0100
From:   Christoph Hellwig <hch@....de>
To:     Dan Williams <dan.j.williams@...el.com>
Cc:     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,
        "Darrick J . Wong" <djwong@...nel.org>
Subject: [PATCH 28/29] iomap: build the block based code conditionally

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>
Reviewed-by: Dan Williams <dan.j.williams@...el.com>
Reviewed-by: Darrick J. Wong <djwong@...nel.org>
---
 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