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[ Upstream commit d11f6cd1bb4a416b4515702d020a7480ac667f0f ] Use STATX_DIOALIGN and STATX_DIO_READ_ALIGN to get DIO alignment attributes from the underlying filesystem and store them in the associated nfsd_file. This is done when the nfsd_file is first opened for each regular file. Signed-off-by: Mike Snitzer <snitzer@kernel.org> Reviewed-by: Jeff Layton <jlayton@kernel.org> Reviewed-by: NeilBrown <neil@brown.name> Signed-off-by: Chuck Lever <chuck.lever@oracle.com> Acked-by: Chuck Lever <chuck.lever@oracle.com> Signed-off-by: Anna Schumaker <anna.schumaker@oracle.com> Stable-dep-of: 25ba2b84c38f ("nfs/localio: avoid issuing misaligned IO using O_DIRECT") Signed-off-by: Sasha Levin <sashal@kernel.org>