From: ZhangPeng <zhangpeng362@xxxxxxxxxx> This patch series converts several userfaultfd functions to use folios. And this series pass the userfaultfd selftests and the LTP userfaultfd test cases. Change log: v1->v2: In patch 2: - Rename copy_large_folio_from_user() to copy_folio_from_user(). - Delete the inner_folio. - kmap() and kmap_atomic() are converted to kmap_local_page(). Use pagefault_disable() to ensure that a deadlock will not occur. - flush_dcache_folio() is placed outside the loop. ZhangPeng (3): userfaultfd: convert mcopy_atomic_pte() to use a folio userfaultfd: convert __mcopy_atomic_hugetlb() to use a folio userfaultfd: convert __mcopy_atomic() to use a folio include/linux/hugetlb.h | 4 +-- include/linux/mm.h | 3 +- include/linux/shmem_fs.h | 2 +- mm/hugetlb.c | 25 +++++++------- mm/memory.c | 27 +++++++-------- mm/shmem.c | 17 +++++---- mm/userfaultfd.c | 74 +++++++++++++++++++--------------------- 7 files changed, 72 insertions(+), 80 deletions(-) -- 2.25.1
