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| author |   Andrea Arcangeli <aarcange@redhat.com> | 2017-02-22 15:43:58 -0800 |
|---|---|---|
| committer |   Linus Torvalds <torvalds@linux-foundation.org> | 2017-02-22 16:41:29 -0800 |
| commit | 47dd924508f5fb10480afc69de04539fa3d14034 (patch) | |
| tree | d4d1492dbdb7681c0270777693e0522d3702b77e /tools/testing/selftests/vm | |
| parent | userfaultfd: shmem: avoid leaking blocks and used blocks in UFFDIO_COPY (diff) | |
| download | linux-dev-47dd924508f5fb10480afc69de04539fa3d14034.tar.xz linux-dev-47dd924508f5fb10480afc69de04539fa3d14034.zip | |
userfaultfd: hugetlbfs: UFFD_FEATURE_MISSING_SHMEM
Userland developers asked to be notified immediately by the UFFDIO_API
ioctl if shmem missing mode is supported by userfaultfd in the running
kernel. This avoids the need to run UFFDIO_REGISTER on a shmem virtual
memory range to find out.
Link: http://lkml.kernel.org/r/20161216144821.5183-38-aarcange@redhat.com
Signed-off-by: Andrea Arcangeli <aarcange@redhat.com>
Cc: "Dr. David Alan Gilbert" <dgilbert@redhat.com>
Cc: Hillf Danton <hillf.zj@alibaba-inc.com>
Cc: Michael Rapoport <RAPOPORT@il.ibm.com>
Cc: Mike Kravetz <mike.kravetz@oracle.com>
Cc: Mike Rapoport <rppt@linux.vnet.ibm.com>
Cc: Pavel Emelyanov <xemul@parallels.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'tools/testing/selftests/vm')
0 files changed, 0 insertions, 0 deletions