The series transitions the ppoll, io_getevents, and pselect syscalls
to be y2038 safe.

This is part of the work proceeding for syscalls for y2038.
It is based on the series [1] from Arnd Bergmann.

The overview of the series is as below:
1. Refactor sigmask handling logic for the above syscalls.
2. Provide y2038 safe versions of syscalls for all ABIs.

[1] https://lkml.org/lkml/2018/8/27/651

Changes since v2:
* remove 64BIT_TIME conditional for ppoll, pselect,
  io_getpevents as per review comments
Changes since v1:
* fixed bug pointed out by arnd

Deepa Dinamani (5):
  signal: Add set_user_sigmask()
  signal: Add restore_user_sigmask()
  ppoll: use __kernel_timespec
  pselect6: use __kernel_timespec
  io_pgetevents: use __kernel_timespec

 fs/aio.c                 | 135 ++++++++++-----
 fs/eventpoll.c           |  52 +-----
 fs/select.c              | 360 ++++++++++++++++++++++-----------------
 include/linux/compat.h   |  20 +++
 include/linux/signal.h   |   4 +
 include/linux/syscalls.h |  20 ++-
 kernel/signal.c          |  78 +++++++++
 7 files changed, 427 insertions(+), 242 deletions(-)

-- 
2.17.1

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