[CRIU] [PATCH 0/4]posix-timer: Add posix timers to criu

[Pavel Tikhomirov]

Hello,

In this patch I want to add posix timers dump/restore to criu.

In first patch I add little function which can replace timeval_valid,
because it is not universal enough to take both timeval and timespec.

Second patch stands for syscalls needed to opperate with timers.

In third patch there are parasite function to get time from timers, and
proc parsing one to parse /proc/<pid>/timers, and structures to save all
info so also have saving functionality.

In forth patch restore: read info from image, place it in allocated mem
and remap it in region which will be shared. And when injected, restore
timers and set them.

problem: don't have functionality to set overrun when restoring, so it
won't pass existing test in zdtm, time displacement fail will occure.
(This test multiplies timer interval by overruns.)

Thanks, Pavel

Pavel Tikhomirov (4):
  posix-timer: Add time_valid() function
  posix-timer: Add proper syscalls definition.
  posix-timer: Add dump functionality and structures.
  posix-timer: Add restore functionality and structures.

 arch/x86/syscall-x86-64.def |    5 ++
 cr-dump.c                   |   13 +++++
 cr-restore.c                |  126 ++++++++++++++++++++++++++++++++++++++++++-
 cr-show.c                   |    6 +++
 image.c                     |    1 +
 include/crtools.h           |    2 +
 include/magic.h             |    1 +
 include/parasite-syscall.h  |    2 +
 include/parasite.h          |   16 ++++++
 include/proc_parse.h        |   22 ++++++++
 include/protobuf.h          |    1 +
 include/restorer.h          |   21 ++++++++
 include/syscall-types.h     |    2 +
 include/util.h              |    8 +++
 parasite-syscall.c          |   65 ++++++++++++++++++++++
 pie/parasite.c              |   27 ++++++++++
 pie/restorer.c              |   35 ++++++++++++
 proc_parse.c                |  121 +++++++++++++++++++++++++++++++++++++++++
 protobuf.c                  |    2 +
 protobuf/Makefile           |    1 +
 protobuf/posix-timer.proto  |   15 ++++++
 21 files changed, 490 insertions(+), 2 deletions(-)
 create mode 100644 protobuf/posix-timer.proto

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