[CRIU] [PATCH v6 0/9] lazy-pages: add support for remote pages

[Mike Rapoport]

Ping?
On Jul 14, 2016 15:49, "Mike Rapoport" <rppt at linux.vnet.ibm.com> wrote:

> Hi,
>
> It's got pretty messy this time because of rework I needed to do for the
> holes dumping code, which is what patches 1-5 actually do.
> The patches 6-9 actually add ability to support remote lazy pages. There
> were only minor changes there because of the rebase onto current criu-dev.
>
> v6 changes:
> * fix unsorted creation of holes pagemap entries
>
> v5 changes:
> * added notion of zero pages and lazy pages in the pagemap.
> * added several tcp_{cork,nodelay} to speedup network tranfers
>
> v4 changes:
> * fixed ppb_alloc_resize to pass nr_pages instead of nr_bytes to fcntl
> * added removal of ppb's right after they are spliced to socked
>
> v3 changes:
> * fixed initialization of pp->own_iovs, thanks Mr. Jenkins
>
> v2 changes:
> * added helpers to page-xfer to reduce code duplication
> * modified protocol between dump side page server and lazy pages daemon as
> per Pavel's comments
> * some changes in the way parasite_dump_pages_seized is refactored. There's
> still more to improve here, even without addition of lazy pages support :)
>
> TODO:
> * cointinue refactoring of page-reader to support random access and remote
> page reads
> * make lazy-pages non-blocking with respect to #PFs
> * performance imporvements
>
> Mike Rapoport (9):
>   Revert "pp: Reset busy_iov in pp->holes on reinit"
>   Revert "pp: Fix lost code from hole dumping helper"
>   Revert "criu: page-{pipe,xfer}: add helper function for dumping holes"
>   Revert "criu: page-pipe: add a wrapping structure for holes and pages
> iovs"
>   criu: page-xfer: add helper function for dumping holes
>   criu: pagemap: add entries for zero pages
>   criu: add ability to skip writing lazy pages
>   criu: page-xfer: add PS_IOV_GET interface
>   criu: lazy-pages: enable remoting of lazy pages
>
>  criu/cr-dump.c           |  38 ++++++++-
>  criu/include/mem.h       |   3 +-
>  criu/include/page-pipe.h |  24 +++---
>  criu/include/page-xfer.h |   6 +-
>  criu/include/stats.h     |   2 +
>  criu/mem.c               |  59 ++++++++-----
>  criu/page-pipe.c         |  77 +++++++++--------
>  criu/page-xfer.c         | 216
> +++++++++++++++++++++++++++++++++++++----------
>  criu/pagemap.c           |  27 ++++--
>  criu/shmem.c             |   2 +-
>  criu/stats.c             |   2 +
>  criu/uffd.c              |   9 +-
>  images/pagemap.proto     |   2 +
>  images/stats.proto       |   3 +
>  14 files changed, 338 insertions(+), 132 deletions(-)
>
> --
> 1.9.1
>
>
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