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SubjectRe: [GIT PULL] Folio patches for 5.18 (MM part)
On Mon, Mar 21, 2022 at 04:24:08PM +0100, David Hildenbrand wrote:
> On 21.03.22 16:16, David Hildenbrand wrote:
> > On 21.03.22 14:30, Matthew Wilcox wrote:
> >> Hi Linus,
> >>
> >> This is the first of two folio-related pull requests for this merge
> >> window. This is the MM side of things and we had some unfortunate
> >> complex merge conflicts to resolve. I decided to redo my changes on
> >> top of Hugh's and Christoph's patches, so I'm the one sending the
> >> pull request.
> >>
> >> The following changes since commit f71077a4d84bbe8c7b91b7db7c4ef815755ac5e3:
> >>
> >> Merge tag 'mmc-v5.17-rc1-2' of git://git.kernel.org/pub/scm/linux/kernel/git/ulfh/mmc (2022-02-16 12:09:22 -0800)
> >>
> >> are available in the Git repository at:
> >>
> >> git://git.infradead.org/users/willy/pagecache.git tags/folio-5.18
> >>
> >> for you to fetch changes up to 5063f22c914e3e5f2239cf91f4986042dc705bde:
> >>
> >> mm/damon: minor cleanup for damon_pa_young (2022-03-16 10:09:50 -0400)
> >>
> >> ----------------------------------------------------------------
> >> Folio changes for 5.18
> >>
> >> Several of us had overlapping, conflicting changes to the MM this
> >> round, and I volunteered to send the pull request.
> >>
> >> - Hugh rewrote how munlock works to massively reduce the contention
> >> on i_mmap_rwsem:
> >> https://lore.kernel.org/linux-mm/8e4356d-9622-a7f0-b2c-f116b5f2efea@google.com/
> >> - Christoph sorted out the page refcount mess for ZONE_DEVICE pages:
> >> https://lore.kernel.org/linux-mm/20220210072828.2930359-1-hch@lst.de/
> >> - I converted GUP to use folios and make pincount available for order-1
> >> pages.
> >> - I converted a few more truncation functions to use folios
> >> - I converted page_vma_mapped_walk to use PFNs instead of pages
> >> - I converted rmap_walk to use folios
> >> - I converted most of shrink_page_list() to use a folio
> >> - I added support for creating large folios in readahead
> >>
> >> ----------------------------------------------------------------
> >> Alex Sierra (10):
> >> mm: add zone device coherent type memory support
> >> mm: add device coherent vma selection for memory migration
> >> mm/gup: fail get_user_pages for LONGTERM dev coherent type
> >> drm/amdkfd: add SPM support for SVM
> >> drm/amdkfd: coherent type as sys mem on migration to ram
> >> lib: test_hmm add ioctl to get zone device type
> >> lib: test_hmm add module param for zone device type
> >> lib: add support for device coherent type in test_hmm
> >> tools: update hmm-test to support device coherent type
> >> tools: update test_hmm script to support SP config
> >>
> >> Alistair Popple (2):
> >> mm: remove the vma check in migrate_vma_setup()
> >> mm/gup: migrate device coherent pages when pinning instead of failing
> >
> > ... I thought DEVICE_COHERENT is still under development?
> >
>
> After verifying that I'm not daydreaming [1] (and realizing that I had
> review comments to some of these patches that have not been resolved
> yet) and also not spotting these change in your changelog above, I
> assume this stuff was included by mistake. NACK to merging
> DEVICE_COHERENT at this point.
>
> [1] https://lkml.kernel.org/r/20220310172633.9151-1-alex.sierra@amd.com

That patch ("split vm_normal_pages for LRU and non-LRU handling") isn't
included in this pull request. The patches I have were those sent by
Christoph here:

https://lore.kernel.org/linux-mm/20220210072828.2930359-1-hch@lst.de/

I can drop any patches that you have objections to, but I don't see
any objections from you to any patches in that list.

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