Re: [PATCH 1/3] mm/swap: revert to single-folio writes for synchronous swap devices

Christoph Hellwig <[email protected]> Thu, 23 Jul 2026 07:25:36 +0200

Newsgroups	org.kernel.vger.linux-nfs,org.kernel.vger.linux-cifs,org.kvack.linux-mm
Message-ID	<[email protected]>

On Wed, Jul 22, 2026 at 09:36:00AM -0700, Usama Arif wrote:
> On Wed, 22 Jul 2026 15:06:07 +0200 Christoph Hellwig <[email protected]> wrote:
> 
> > Kairui Song reported that zram benefits from submitting each folio
> > directly instead of batching up I/O because the classic LRU scanning
> > benefits from clearing the folio writeback bit in the scan loop.
> > 
> > Accommodate that by kicking off reads for synchronous devices for
> 
> s/reads/writes/ ?

Yes, fixed.