Re: [PATCH 0/2] mm: Use pte marker for swapin errors

[Peter Xu]

On Mon, Oct 31, 2022 at 09:40:15AM +0800, Huang, Ying wrote:
> Peter Xu <peterx@xxxxxxxxxx> writes:
> 
> > rfc->v1:
> > - Rename SWAP_ERROR -> SWAPIN_ERROR [David, Miaohe]
> > - Added r-bs for Ying and Miaohe
> >
> > Hi,
> >
> > This series uses the pte marker to replace the swapin error swap entry,
> > then we save one more swap entry slot for swap devices.  A new pte marker
> > bit is defined.
> 
> Per my understanding, "swap entry" describes one swap page (4KB on x86)
> in one swap device.  So, the original swapin error implementation uses
> one swap file (or swap device) instead of one swap entry.  So your patch
> saves one swap file (or swap device).

Yeah I was definitely not accurate enough, I wanted to use "slot" to mean
"type" here but obviously I didn't make it, sorry.  Hopefully the whole
patchset is still clear enough anyway so no reader will get confused by it.

-- 
Peter Xu