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| author | Andrea Arcangeli | 2017-02-23 00:43:19 +0100 |
|---|---|---|
| committer | Linus Torvalds | 2017-02-23 01:41:28 +0100 |
| commit | 163e11bc4f6ebbfcfdf751c108bd212a26e492ee (patch) | |
| tree | 0379f4659bcf90a473624290bae01eac46b5ddc2 /fs/userfaultfd.c | |
| parent | userfaultfd: hugetlbfs: reserve count on error in __mcopy_atomic_hugetlb (diff) | |
| download | kernel-qcow2-linux-163e11bc4f6ebbfcfdf751c108bd212a26e492ee.tar.gz kernel-qcow2-linux-163e11bc4f6ebbfcfdf751c108bd212a26e492ee.tar.xz kernel-qcow2-linux-163e11bc4f6ebbfcfdf751c108bd212a26e492ee.zip | |
userfaultfd: hugetlbfs: UFFD_FEATURE_MISSING_HUGETLBFS
Userland developers asked to be notified immediately by the UFFDIO_API
ioctl if hugetlbfs missing mode is supported by userfaultfd in the
running kernel. This avoids the need to run UFFDIO_REGISTER on a
hugetlbfs virtual memory range to find out.
Link: http://lkml.kernel.org/r/20161216144821.5183-27-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 'fs/userfaultfd.c')
0 files changed, 0 insertions, 0 deletions