Re: [RFC PATCH v2 3/8] NFSD: filecache: add STATX_DIOALIGN and STATX_DIO_READ_ALIGN support

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On Tue, Jul 08, 2025 at 12:06:14PM -0400, Mike Snitzer wrote:
> Use STATX_DIOALIGN and STATX_DIO_READ_ALIGN to get and store DIO
> alignment attributes from underlying filesystem in associated
> nfsd_file.  This is done when the nfsd_file is first opened for
> a regular file.

Just as a little warning: these are unfortunately only supported by
very few file systems right now.  For someone with a little bit of
time on their hand it would be nice to do a pass to set them for
all remaining direct I/O supporting file systems, which is only about
a dozen anyway.





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