From: Andrea Arcangeli <aarcange@redhat.com>
To: Andrew Morton <akpm@linux-foundation.org>
Cc: linux-mm@kvack.org, Michael Rapoport <RAPOPORT@il.ibm.com>,
"Dr. David Alan Gilbert"@v2.random, " <dgilbert@redhat.com>,
Mike Kravetz <mike.kravetz@oracle.com>,
Shaohua Li <shli@fb.com>,
Pavel Emelyanov <xemul@parallels.com>"@v2.random
Subject: [PATCH 00/33] userfaultfd tmpfs/hugetlbfs/non-cooperative
Date: Wed, 2 Nov 2016 20:33:32 +0100 [thread overview]
Message-ID: <1478115245-32090-1-git-send-email-aarcange@redhat.com> (raw)
Hello,
these userfaultfd features are finished and are ready for larger
exposure in -mm and upstream merging.
1) tmpfs non present userfault
2) hugetlbfs non present userfault
3) non cooperative userfault for fork/madvise/mremap
qemu development code is already exercising 2) and container postcopy
live migration needs 3).
1) is not currently used but there's a self test and we know some qemu
user for various reasons uses tmpfs as backing for KVM so it'll need
it too to use postcopy live migration with tmpfs memory.
In addition there's a few related pending fixes and cleanups.
The "mm: mprotect: use pmd_trans_unstable instead of taking the
pmd_lock" patch is actually required for the WP support that will come
later, but it looks a nice cleanup + optimization for upstream too so
I'm sending it already.
Andrea Arcangeli (10):
userfaultfd: document _IOR/_IOW
userfaultfd: correct comment about UFFD_FEATURE_PAGEFAULT_FLAG_WP
userfaultfd: convert BUG() to WARN_ON_ONCE()
userfaultfd: use vma_is_anonymous
userfaultfd: non-cooperative: report all available features to
userland
userfaultfd: non-cooperative: Add fork() event, build warning fix
userfaultfd: shmem: add tlbflush.h header for microblaze
userfaultfd: shmem: lock the page before adding it to pagecache
userfaultfd: shmem: avoid leaking blocks and used blocks in
UFFDIO_COPY
mm: mprotect: use pmd_trans_unstable instead of taking the pmd_lock
Mike Kravetz (7):
userfaultfd: hugetlbfs: add copy_huge_page_from_user for hugetlb
userfaultfd support
userfaultfd: hugetlbfs: add hugetlb_mcopy_atomic_pte for userfaultfd
support
userfaultfd: hugetlbfs: add __mcopy_atomic_hugetlb for huge page
UFFDIO_COPY
userfaultfd: hugetlbfs: add userfaultfd hugetlb hook
userfaultfd: hugetlbfs: allow registration of ranges containing huge
pages
userfaultfd: hugetlbfs: add userfaultfd_hugetlb test
userfaultfd: hugetlbfs: userfaultfd_huge_must_wait for hugepmd ranges
Mike Rapoport (11):
userfaultfd: non-cooperative: dup_userfaultfd: use mm_count instead of
mm_users
userfaultfd: introduce vma_can_userfault
userfaultfd: shmem: add shmem_mcopy_atomic_pte for userfaultfd support
userfaultfd: shmem: introduce vma_is_shmem
userfaultfd: shmem: use shmem_mcopy_atomic_pte for shared memory
userfaultfd: shmem: add userfaultfd hook for shared memory faults
userfaultfd: shmem: allow registration of shared memory ranges
userfaultfd: shmem: add userfaultfd_shmem test
userfaultfd: non-cooperative: selftest: introduce userfaultfd_open
userfaultfd: non-cooperative: selftest: add ufd parameter to copy_page
userfaultfd: non-cooperative: selftest: add test for FORK,
MADVDONTNEED and REMAP events
Pavel Emelyanov (5):
userfaultfd: non-cooperative: Split the find_userfault() routine
userfaultfd: non-cooperative: Add ability to report non-PF events from
uffd descriptor
userfaultfd: non-cooperative: Add fork() event
userfaultfd: non-cooperative: Add mremap() event
userfaultfd: non-cooperative: Add madvise() event for MADV_DONTNEED
request
fs/userfaultfd.c | 445 +++++++++++++++++++++++++++++--
include/linux/hugetlb.h | 8 +-
include/linux/mm.h | 13 +
include/linux/shmem_fs.h | 11 +
include/linux/userfaultfd_k.h | 42 +++
include/uapi/asm-generic/ioctl.h | 10 +-
include/uapi/linux/userfaultfd.h | 39 ++-
kernel/fork.c | 10 +-
mm/hugetlb.c | 114 ++++++++
mm/madvise.c | 2 +
mm/memory.c | 25 ++
mm/mprotect.c | 44 ++-
mm/mremap.c | 17 +-
mm/shmem.c | 159 ++++++++++-
mm/userfaultfd.c | 211 ++++++++++++++-
tools/testing/selftests/vm/Makefile | 8 +
tools/testing/selftests/vm/run_vmtests | 24 ++
tools/testing/selftests/vm/userfaultfd.c | 405 +++++++++++++++++++++++++---
18 files changed, 1453 insertions(+), 134 deletions(-)
--
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next reply other threads:[~2016-11-02 19:34 UTC|newest]
Thread overview: 69+ messages / expand[flat|nested] mbox.gz Atom feed top
2016-11-02 19:33 Andrea Arcangeli [this message]
2016-11-02 19:33 ` [PATCH 01/33] userfaultfd: document _IOR/_IOW Andrea Arcangeli
2016-11-02 19:33 ` [PATCH 02/33] userfaultfd: correct comment about UFFD_FEATURE_PAGEFAULT_FLAG_WP Andrea Arcangeli
2016-11-02 19:33 ` [PATCH 03/33] userfaultfd: convert BUG() to WARN_ON_ONCE() Andrea Arcangeli
2016-11-02 19:33 ` [PATCH 04/33] userfaultfd: use vma_is_anonymous Andrea Arcangeli
2016-11-02 19:33 ` [PATCH 05/33] userfaultfd: non-cooperative: Split the find_userfault() routine Andrea Arcangeli
2016-11-02 19:33 ` [PATCH 06/33] userfaultfd: non-cooperative: Add ability to report non-PF events from uffd descriptor Andrea Arcangeli
2016-11-02 19:33 ` [PATCH 07/33] userfaultfd: non-cooperative: report all available features to userland Andrea Arcangeli
2016-11-02 19:33 ` [PATCH 08/33] userfaultfd: non-cooperative: Add fork() event Andrea Arcangeli
2016-11-02 19:33 ` [PATCH 09/33] userfaultfd: non-cooperative: Add fork() event, build warning fix Andrea Arcangeli
2016-11-02 19:33 ` [PATCH 10/33] userfaultfd: non-cooperative: dup_userfaultfd: use mm_count instead of mm_users Andrea Arcangeli
2016-11-02 19:33 ` [PATCH 11/33] userfaultfd: non-cooperative: Add mremap() event Andrea Arcangeli
2016-11-03 7:41 ` Hillf Danton
2016-11-03 17:52 ` Mike Rapoport
2016-11-04 15:40 ` Mike Rapoport
2016-11-02 19:33 ` [PATCH 12/33] userfaultfd: non-cooperative: Add madvise() event for MADV_DONTNEED request Andrea Arcangeli
2016-11-03 8:01 ` Hillf Danton
2016-11-03 17:24 ` Mike Rapoport
2016-11-04 16:40 ` [PATCH 12/33] userfaultfd: non-cooperative: Add madvise() event for MADV_DONTNEED requestg Andrea Arcangeli
2016-11-04 15:42 ` [PATCH 12/33] userfaultfd: non-cooperative: Add madvise() event for MADV_DONTNEED request Mike Rapoport
2016-11-02 19:33 ` [PATCH 13/33] userfaultfd: hugetlbfs: add copy_huge_page_from_user for hugetlb userfaultfd support Andrea Arcangeli
2016-11-02 19:33 ` [PATCH 14/33] userfaultfd: hugetlbfs: add hugetlb_mcopy_atomic_pte for " Andrea Arcangeli
2016-11-02 19:33 ` [PATCH 15/33] userfaultfd: hugetlbfs: add __mcopy_atomic_hugetlb for huge page UFFDIO_COPY Andrea Arcangeli
2016-11-03 10:15 ` Hillf Danton
2016-11-03 17:33 ` Mike Kravetz
2016-11-03 19:14 ` Mike Kravetz
2016-11-04 6:43 ` Hillf Danton
2016-11-04 19:36 ` Andrea Arcangeli
2016-11-04 20:34 ` Mike Kravetz
2016-11-08 21:06 ` Mike Kravetz
2016-11-16 18:28 ` Andrea Arcangeli
2016-11-16 18:53 ` Mike Kravetz
2016-11-17 15:40 ` Andrea Arcangeli
2016-11-17 19:26 ` Mike Kravetz
2016-11-18 0:05 ` Andrea Arcangeli
2016-11-18 5:52 ` Mike Kravetz
2016-11-22 1:16 ` Mike Kravetz
2016-11-23 6:38 ` Hillf Danton
2016-12-15 19:02 ` Andrea Arcangeli
2016-12-16 3:54 ` Hillf Danton
2016-11-17 19:41 ` Mike Kravetz
2016-11-04 16:35 ` Andrea Arcangeli
2016-11-02 19:33 ` [PATCH 16/33] userfaultfd: hugetlbfs: add userfaultfd hugetlb hook Andrea Arcangeli
2016-11-04 7:02 ` Hillf Danton
2016-11-02 19:33 ` [PATCH 17/33] userfaultfd: hugetlbfs: allow registration of ranges containing huge pages Andrea Arcangeli
2016-11-02 19:33 ` [PATCH 18/33] userfaultfd: hugetlbfs: add userfaultfd_hugetlb test Andrea Arcangeli
2016-11-02 19:33 ` [PATCH 19/33] userfaultfd: hugetlbfs: userfaultfd_huge_must_wait for hugepmd ranges Andrea Arcangeli
2016-11-02 19:33 ` [PATCH 20/33] userfaultfd: introduce vma_can_userfault Andrea Arcangeli
2016-11-04 7:39 ` Hillf Danton
2016-11-02 19:33 ` [PATCH 21/33] userfaultfd: shmem: add shmem_mcopy_atomic_pte for userfaultfd support Andrea Arcangeli
2016-11-02 19:33 ` [PATCH 22/33] userfaultfd: shmem: introduce vma_is_shmem Andrea Arcangeli
2016-11-02 19:33 ` [PATCH 23/33] userfaultfd: shmem: add tlbflush.h header for microblaze Andrea Arcangeli
2016-11-02 19:33 ` [PATCH 24/33] userfaultfd: shmem: use shmem_mcopy_atomic_pte for shared memory Andrea Arcangeli
2016-11-02 19:33 ` [PATCH 25/33] userfaultfd: shmem: add userfaultfd hook for shared memory faults Andrea Arcangeli
2016-11-04 8:59 ` Hillf Danton
2016-11-04 14:53 ` Mike Rapoport
2016-11-04 15:44 ` Mike Rapoport
2016-11-04 16:56 ` Andrea Arcangeli
2016-11-18 0:37 ` Andrea Arcangeli
2016-11-20 12:10 ` Mike Rapoport
2016-11-02 19:33 ` [PATCH 26/33] userfaultfd: shmem: allow registration of shared memory ranges Andrea Arcangeli
2016-11-02 19:33 ` [PATCH 27/33] userfaultfd: shmem: add userfaultfd_shmem test Andrea Arcangeli
2016-11-02 19:34 ` [PATCH 28/33] userfaultfd: shmem: lock the page before adding it to pagecache Andrea Arcangeli
2016-11-02 19:34 ` [PATCH 29/33] userfaultfd: shmem: avoid leaking blocks and used blocks in UFFDIO_COPY Andrea Arcangeli
2016-11-02 19:34 ` [PATCH 30/33] userfaultfd: non-cooperative: selftest: introduce userfaultfd_open Andrea Arcangeli
2016-11-02 19:34 ` [PATCH 31/33] userfaultfd: non-cooperative: selftest: add ufd parameter to copy_page Andrea Arcangeli
2016-11-02 19:34 ` [PATCH 32/33] userfaultfd: non-cooperative: selftest: add test for FORK, MADVDONTNEED and REMAP events Andrea Arcangeli
2016-11-02 19:34 ` [PATCH 33/33] mm: mprotect: use pmd_trans_unstable instead of taking the pmd_lock Andrea Arcangeli
2016-11-02 20:07 ` [PATCH 00/33] userfaultfd tmpfs/hugetlbfs/non-cooperative Andrea Arcangeli
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