Re: [PATCH] exfat: add swap_activate support

[Jan Polensky]

On Wed, Jun 03, 2026 at 11:34:55PM +0900, Namjae Jeon wrote:
> On Wed, Jun 3, 2026 at 10:20 PM Jan Polensky <japo@xxxxxxxxxxxxx> wrote:
> >
> > Commit 614f71ca1bdf ("exfat: add iomap buffered I/O support")
> > converted exfat buffered I/O to iomap, but did not add a
> > .swap_activate handler to the address_space_operations.
> >
> > swapon(2) on an exfat swapfile then fails with EINVAL, which causes
> > LTP swap tests to fail.
> >
> > Add exfat_iomap_swap_activate() and hook it into exfat_aops so exfat
> > uses iomap_swapfile_activate() for swapfile activation.
> >
> > Fixes: 614f71ca1bdf ("exfat: add iomap buffered I/O support")
> > Closes: https://lore.kernel.org/all/20260603110212.3020276-1-japo@xxxxxxxxxxxxx/
> > Signed-off-by: Jan Polensky <japo@xxxxxxxxxxxxx>
> Applied it to #dev.
> Thanks!

Hi Namjae,

I think one line might have been missed when applying my patch:

    .swap_activate = exfat_iomap_swap_activate,

I checked linux-next (master and next-20260604 / next-20260605),
and the issue is still present there.

Link:
https://lore.kernel.org/all/20260603131950.321858-1-japo@xxxxxxxxxxxxx/

Could you please take a look?

Thanks,
Jan