Re: [PATCH v1 11/11] fs: aio: add explicit check for large folio in aio_migrate_folio()

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On 2024/3/21 11:35, Matthew Wilcox wrote:
On Thu, Mar 21, 2024 at 11:27:47AM +0800, Kefeng Wang wrote:
Since large folio copy could spend lots of time and it is involved with
a cond_resched(), the aio couldn't support migrate large folio as it takes
a spin lock when folio copy, add explicit check for large folio and return
err directly.

This is unnecessary.  aio only allocates order-0 folios (it uses
find_or_create_page() to do it).

Yes, only order-0 now, I will drop it.

If you want to take on converting aio to use folios instead of pages,
that'd be a worthwhile project.

OK, will try, thanks for your review.

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