This patch series is against my current folio for-next branch. I know
it won't apply to sfr's next tree, and it's not for-next material yet.
I intend to submit it for 5.18 after I've rebased it to one of the
5.17-rc releases.
The overall effect of this (ignoring the primary "preparing for folios
that are not PAGE or PMD sized" purpose) is to reduce the size of gup.o
by ~700 bytes in the config I normally test with.
This patchset just converts existing implementations to use folios.
There's no new API for consumers here to provide information in a more
efficient (address, length) format. That will be a separate patchset.
Matthew Wilcox (Oracle) (17):
mm: Add folio_put_refs()
mm: Add folio_pincount_available()
mm: Add folio_pincount_ptr()
mm: Convert page_maybe_dma_pinned() to use a folio
gup: Add try_get_folio()
mm: Remove page_cache_add_speculative() and
page_cache_get_speculative()
gup: Add gup_put_folio()
gup: Add try_grab_folio()
gup: Convert gup_pte_range() to use a folio
gup: Convert gup_hugepte() to use a folio
gup: Convert gup_huge_pmd() to use a folio
gup: Convert gup_huge_pud() to use a folio
gup: Convert gup_huge_pgd() to use a folio
gup: Convert for_each_compound_head() to gup_for_each_folio()
gup: Convert for_each_compound_range() to gup_for_each_folio_range()
mm: Add isolate_lru_folio()
gup: Convert check_and_migrate_movable_pages() to use a folio
arch/powerpc/include/asm/mmu_context.h | 1 -
include/linux/mm.h | 58 +++--
include/linux/mm_types.h | 6 +
include/linux/pagemap.h | 11 -
mm/folio-compat.c | 8 +
mm/gup.c | 312 ++++++++++++-------------
mm/hugetlb.c | 7 +-
mm/internal.h | 3 +-
mm/vmscan.c | 43 ++--
9 files changed, 222 insertions(+), 227 deletions(-)
--
2.33.0
