[CRIU] [RFC PATCH 00/12] lazy-pages: add non-#PF events handling

[Andrei Vagin]

On Mon, Jan 09, 2017 at 10:23:14AM +0200, Mike Rapoport wrote:
> Hi,
> 
> These patches add handling of userfaultfd events other than page fault. The
> required kernel patches [1] are merged into the mm tree.

I don't see patches for criu check to detect whether a kernel has these
patches.


> The lazy-pages daemon will now be able to request fork(), mremap() and
> madvise(MADV_DONTNEED) events from the kernel and properly respond to those
> events for the local lazy restore case.
> The remote lazy restore still requires some more work for correct
> implementation of the fork() event, and I'm looking at it right now.
> 
> [1] http://marc.info/?l=linux-mm&m=148189971307409&w=2
> 
> Mike Rapoport (12):
>   zdtm.py: postpone waiting for lazy-pages daemon
>   util: epoll_run: fix event processing loop
>   util: epoll_run: allow interrupting event polling
>   lazy-pages: prepare for non-#PF events handling
>   lazy-pages: track outstanding page faults
>   lazy-pages: add handling of UFFD_EVENT_MADVDONTNEED
>   lazy-pages: add handling of UFFD_EVENT_REMAP
>   page-read: add PID for some debug printouts
>   page-read: introduce dup_page_read
>   lazy-pages: add userfault fd to error and debug printouts
>   lazy-pages: add handling of UFFD_EVENT_FORK
>   lazy-pages: request userfaultfd events during API handshake
> 
>  criu/include/pagemap.h |   7 ++
>  criu/pagemap.c         |  25 ++++-
>  criu/uffd.c            | 298 ++++++++++++++++++++++++++++++++++++++++++++-----
>  criu/util.c            |  11 +-
>  test/zdtm.py           |   8 +-
>  5 files changed, 308 insertions(+), 41 deletions(-)
> 
> -- 
> 1.9.1
> 
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