linux/include
Peter Xu 5a90d5a103 mm/hugetlb: handle UFFDIO_WRITEPROTECT
This starts from passing cp_flags into hugetlb_change_protection() so
hugetlb will be able to handle MM_CP_UFFD_WP[_RESOLVE] requests.

huge_pte_clear_uffd_wp() is introduced to handle the case where the
UFFDIO_WRITEPROTECT is requested upon migrating huge page entries.

Link: https://lkml.kernel.org/r/20220405014906.14708-1-peterx@redhat.com
Signed-off-by: Peter Xu <peterx@redhat.com>
Reviewed-by: Mike Kravetz <mike.kravetz@oracle.com>
Cc: Alistair Popple <apopple@nvidia.com>
Cc: Andrea Arcangeli <aarcange@redhat.com>
Cc: Axel Rasmussen <axelrasmussen@google.com>
Cc: David Hildenbrand <david@redhat.com>
Cc: Hugh Dickins <hughd@google.com>
Cc: Jerome Glisse <jglisse@redhat.com>
Cc: "Kirill A . Shutemov" <kirill@shutemov.name>
Cc: Matthew Wilcox <willy@infradead.org>
Cc: Mike Rapoport <rppt@linux.vnet.ibm.com>
Cc: Nadav Amit <nadav.amit@gmail.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
2022-05-13 07:20:11 -07:00
..
acpi ACPI: bus: Eliminate acpi_bus_get_device() 2022-04-05 19:49:26 +02:00
asm-generic mm/hugetlb: introduce huge pte version of uffd-wp helpers 2022-05-13 07:20:10 -07:00
clocksource
crypto Merge branch 'linus' of git://git.kernel.org/pub/scm/linux/kernel/git/herbert/crypto-2.6 2022-03-21 16:02:36 -07:00
drm
dt-bindings RTC for 5.18 2022-04-01 09:37:18 -07:00
keys
kunit
kvm
linux mm/hugetlb: handle UFFDIO_WRITEPROTECT 2022-05-13 07:20:11 -07:00
math-emu
media
memory
misc
net bluetooth pull request for net: 2022-04-28 10:18:51 +02:00
pcmcia
ras Revert "mm/memory-failure.c: fix race with changing page compound again" 2022-04-28 23:16:02 -07:00
rdma
scsi scsi: iscsi: Fix NOP handling during conn recovery 2022-04-11 22:09:35 -04:00
soc drm for 5.18-rc1 2022-03-24 16:19:43 -07:00
sound ASoC: Fixes for v5.18 2022-04-19 17:26:01 +02:00
target
trace NFSD bug fixes for 5.18-rc: 2022-04-12 14:23:19 -10:00
uapi fbdev fixes and updates for kernel v5.18-rc5 2022-04-26 11:32:01 -07:00
vdso
video
xen