Messages in this thread | | | From | Peng Zhang <> | Subject | [PATCH v5 0/6] userfaultfd: convert userfaultfd functions to use folios | Date | Fri, 31 Mar 2023 17:39:31 +0800 |
| |
From: ZhangPeng <zhangpeng362@huawei.com>
This patch series converts several userfaultfd functions to use folios.
Change log:
v4->v5: - Update commit description and change page_kaddr to kaddr, suggested by Matthew Wilcox. (patch 1,6) - Remove pages_per_huge_page from copy_user_folio(), suggested by Matthew Wilcox. (patch 5) - Add RB from Sidhartha Kumar. (patch 1,3,4)
v3->v4: - Rebase onto mm-unstable per Andrew Morton. Update commit description because some function names are changed. (patch 1,4,6)
v2->v3: - Split patch 2 into three patches, suggested by Mike Kravetz. (patch 2-4) - Add a new patch to convert copy_user_huge_page to copy_user_folio, suggested by Mike Kravetz. (patch 5) - Fix two uninitialized bugs, thanks to Dan Carpenter. (patch 6) - Do some indenting cleanups.
v1->v2: Modified patch 2, suggested by Matthew Wilcox: - 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 (6): userfaultfd: convert mfill_atomic_pte_copy() to use a folio userfaultfd: use kmap_local_page() in copy_huge_page_from_user() userfaultfd: convert copy_huge_page_from_user() to copy_folio_from_user() userfaultfd: convert mfill_atomic_hugetlb() to use a folio mm: convert copy_user_huge_page() to copy_user_folio() userfaultfd: convert mfill_atomic() to use a folio
include/linux/hugetlb.h | 4 +- include/linux/mm.h | 14 +++---- include/linux/shmem_fs.h | 4 +- mm/hugetlb.c | 39 ++++++++---------- mm/memory.c | 64 ++++++++++++++--------------- mm/shmem.c | 16 ++++---- mm/userfaultfd.c | 89 ++++++++++++++++++++-------------------- 7 files changed, 110 insertions(+), 120 deletions(-)
-- 2.25.1
| |