diff options
| author | Dan Williams <dan.j.williams@intel.com> | 2017-05-08 10:55:27 -0700 |
|---|---|---|
| committer | Dan Williams <dan.j.williams@intel.com> | 2017-05-08 10:55:27 -0700 |
| commit | ef51042472f55b325fd7f2b26a2e29fd89757234 (patch) | |
| tree | ad814d3a1537f69b6ca54c0417260324e8f1a6eb /block/Kconfig | |
| parent | 74d71a01abef37f71d914f2105a4cb8712a2beb8 (diff) | |
| download | lwn-ef51042472f55b325fd7f2b26a2e29fd89757234.tar.gz lwn-ef51042472f55b325fd7f2b26a2e29fd89757234.zip | |
block, dax: move "select DAX" from BLOCK to FS_DAX
For configurations that do not enable DAX filesystems or drivers, do not
require the DAX core to be built.
Given that the 'direct_access' method has been removed from
'block_device_operations', we can also go ahead and remove the
block-related dax helper functions from fs/block_dev.c to
drivers/dax/super.c. This keeps dax details out of the block layer and
lets the DAX core be built as a module in the FS_DAX=n case.
Filesystems need to include dax.h to call bdev_dax_supported().
Cc: linux-xfs@vger.kernel.org
Cc: Jens Axboe <axboe@kernel.dk>
Cc: "Theodore Ts'o" <tytso@mit.edu>
Cc: Matthew Wilcox <mawilcox@microsoft.com>
Cc: Alexander Viro <viro@zeniv.linux.org.uk>
Cc: "Darrick J. Wong" <darrick.wong@oracle.com>
Cc: Ross Zwisler <ross.zwisler@linux.intel.com>
Reviewed-by: Jan Kara <jack@suse.com>
Reported-by: Geert Uytterhoeven <geert@linux-m68k.org>
Signed-off-by: Dan Williams <dan.j.williams@intel.com>
Diffstat (limited to 'block/Kconfig')
| -rw-r--r-- | block/Kconfig | 1 |
1 files changed, 0 insertions, 1 deletions
diff --git a/block/Kconfig b/block/Kconfig index 93da7fc3f254..e9f780f815f5 100644 --- a/block/Kconfig +++ b/block/Kconfig @@ -6,7 +6,6 @@ menuconfig BLOCK default y select SBITMAP select SRCU - select DAX help Provide block layer support for the kernel. |