Re: [PATCH 2/2] xfs: disable large folio support in xfile_create

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On Wed, 10 Jan 2024 12:04:51 -0800 "Darrick J. Wong" <djwong@xxxxxxxxxx> wrote:

> > > Fixing this will require a bit of an API change, and prefeably sorting out
> > > the hwpoison story for pages vs folio and where it is placed in the shmem
> > > API.  For now use this one liner to disable large folios.
> > > 
> > > Reported-by: Darrick J. Wong <djwong@xxxxxxxxxx>
> > > Signed-off-by: Christoph Hellwig <hch@xxxxxx>
> > 
> > Can someone who knows more about shmem.c than I do please review
> > https://lore.kernel.org/linux-xfs/20240103084126.513354-4-hch@xxxxxx/
> > so that I can feel slightly more confident as hch and I sort through the
> > xfile.c issues?
> > 
> > For this patch,
> > Reviewed-by: Darrick J. Wong <djwong@xxxxxxxxxx>
> 
> ...except that I'm still getting 2M THPs even with this enabled, so I
> guess either we get to fix it now, or create our own private tmpfs mount
> so that we can pass in huge=never, similar to what i915 does. :(

What is "this"?  Are you saying that $Subject doesn't work, or that the
above-linked please-review patch doesn't work?



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