Re: [RFC] iommu: Use put_pages_list

[John Garry]

On 14/10/2021 12:20, Matthew Wilcox wrote:
> I'm going to keep pinging this patch weekly.
>
> On Thu, Oct 07, 2021 at 07:17:02PM +0100, Matthew Wilcox wrote:
> > ping?

Robin, Were you checking this? You mentioned "I got
side-tracked trying to make io-pgtable use that freelist properly" in 
another thread, which seems related.

Thanks,
John

> > On Thu, Sep 30, 2021 at 05:20:42PM +0100, Matthew Wilcox (Oracle) wrote:
> > > page->freelist is for the use of slab.  We already have the ability
> > > to free a list of pages in the core mm, but it requires the use of a
> > > list_head and for the pages to be chained together through page->lru.
> > > Switch the iommu code over to using free_pages_list().
> > >
> > > Signed-off-by: Matthew Wilcox (Oracle) <willy@xxxxxxxxxxxxx>
> > > ---
> > >   drivers/iommu/amd/io_pgtable.c | 99 +++++++++++++++-------------------
> > >   drivers/iommu/dma-iommu.c      | 11 +---
> > >   drivers/iommu/intel/iommu.c    | 89 +++++++++++-------------------
> > >   include/linux/iommu.h          |  3 +-
> > >   4 files changed, 77 insertions(+), 125 deletions(-)