linux-kernel - build direct-io.c conditionally

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Message-Id: <20230125065839.191256-1-hch@lst.de>
Date:   Wed, 25 Jan 2023 07:58:37 +0100
From:   Christoph Hellwig <hch@....de>
To:     Alexander Viro <viro@...iv.linux.org.uk>,
        Andrew Morton <akpm@...ux-foundation.org>
Cc:     Jan Kara <jack@...e.cz>, linux-fsdevel@...r.kernel.org,
        linux-kernel@...r.kernel.org
Subject: build direct-io.c conditionally

Hi all,

this series makes the build of direct-io.c conditional as only
about a dozen file systems actually use it.

Diffstat:
 Kconfig          |    4 ++++
 Makefile         |    3 ++-
 affs/Kconfig     |    1 +
 direct-io.c      |   24 ------------------------
 exfat/Kconfig    |    1 +
 ext2/Kconfig     |    1 +
 fat/Kconfig      |    1 +
 hfs/Kconfig      |    1 +
 hfsplus/Kconfig  |    1 +
 internal.h       |    4 +---
 jfs/Kconfig      |    1 +
 nilfs2/Kconfig   |    1 +
 ntfs3/Kconfig    |    1 +
 ocfs2/Kconfig    |    1 +
 reiserfs/Kconfig |    1 +
 super.c          |   24 ++++++++++++++++++++++++
 udf/Kconfig      |    1 +
 17 files changed, 43 insertions(+), 28 deletions(-)