diff options
| author | Mike Rapoport <[email protected]> | 2017-02-24 14:58:31 -0800 |
|---|---|---|
| committer | Linus Torvalds <[email protected]> | 2017-02-24 17:46:55 -0800 |
| commit | 96333187ab16215888f2bce01985ca5a823da8ba (patch) | |
| tree | 7eb8866b6d2ab89b0bf058c3963089095049e893 /tools/perf/scripts/python/syscall-counts-by-pid.py | |
| parent | 27d02568f529e908399514dfbee8ee43bdfd5299 (diff) | |
userfaultfd_copy: return -ENOSPC in case mm has gone
In the non-cooperative userfaultfd case, the process exit may race with
outstanding mcopy_atomic called by the uffd monitor. Returning -ENOSPC
instead of -EINVAL when mm is already gone will allow uffd monitor to
distinguish this case from other error conditions.
Link: http://lkml.kernel.org/r/[email protected]
Signed-off-by: Mike Rapoport <[email protected]>
Acked-by: Hillf Danton <[email protected]>
Cc: Andrea Arcangeli <[email protected]>
Cc: "Dr. David Alan Gilbert" <[email protected]>
Cc: Mike Kravetz <[email protected]>
Cc: Pavel Emelyanov <[email protected]>
Signed-off-by: Andrew Morton <[email protected]>
Signed-off-by: Linus Torvalds <[email protected]>
Diffstat (limited to 'tools/perf/scripts/python/syscall-counts-by-pid.py')
0 files changed, 0 insertions, 0 deletions