On Fri, Aug 09, 2019 at 03:58:22PM -0700, ira.we...@intel.com wrote:
> From: Ira Weiny <ira.we...@intel.com>
> 
> If pages are under a lease fail the truncate operation.  We change the order 
> of
> lease breaks to directly fail the operation if the lease exists.
> 
> Select EXPORT_BLOCK_OPS for FS_DAX to ensure that xfs_break_lease_layouts() is
> defined for FS_DAX as well as pNFS.
> 
> Signed-off-by: Ira Weiny <ira.we...@intel.com>
> ---
>  fs/Kconfig        | 1 +
>  fs/xfs/xfs_file.c | 5 +++--
>  2 files changed, 4 insertions(+), 2 deletions(-)
> 
> diff --git a/fs/Kconfig b/fs/Kconfig
> index 14cd4abdc143..c10b91f92528 100644
> --- a/fs/Kconfig
> +++ b/fs/Kconfig
> @@ -48,6 +48,7 @@ config FS_DAX
>       select DEV_PAGEMAP_OPS if (ZONE_DEVICE && !FS_DAX_LIMITED)
>       select FS_IOMAP
>       select DAX
> +     select EXPORTFS_BLOCK_OPS
>       help
>         Direct Access (DAX) can be used on memory-backed block devices.
>         If the block device supports DAX and the filesystem supports DAX,

That looks wrong. If you require xfs_break_lease_layouts() outside
of pnfs context, then move the function in the XFS code base to a
file that is built in. It's only external dependency is on the
break_layout() function, and XFS already has other unconditional
direct calls to break_layout()...

Cheers,

Dave.
-- 
Dave Chinner
da...@fromorbit.com
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