Hi

It includes:
- Leonardo fix for zero_copy flush
- Fiona fix for return value of readv/writev
- Peter Xu cleanups
- Peter Xu preempt patches
- Patches ready from zero page (me)
- AVX2 support (ling)
- fix for slow networking and reordering of first packets (manish)

Please, apply.

Fiona Ebner (1):
  migration/channel-block: fix return value for
    qio_channel_block_{readv,writev}

Juan Quintela (5):
  multifd: Create page_size fields into both MultiFD{Recv,Send}Params
  multifd: Create page_count fields into both MultiFD{Recv,Send}Params
  migration: Export ram_transferred_ram()
  migration: Export ram_release_page()
  migration: Block migration comment or code is wrong

Leonardo Bras (1):
  migration/multifd/zero-copy: Create helper function for flushing

Peter Xu (20):
  migration: Fix possible infinite loop of ram save process
  migration: Fix race on qemu_file_shutdown()
  migration: Disallow postcopy preempt to be used with compress
  migration: Use non-atomic ops for clear log bitmap
  migration: Disable multifd explicitly with compression
  migration: Take bitmap mutex when completing ram migration
  migration: Add postcopy_preempt_active()
  migration: Cleanup xbzrle zero page cache update logic
  migration: Trivial cleanup save_page_header() on same block check
  migration: Remove RAMState.f references in compression code
  migration: Yield bitmap_mutex properly when sending/sleeping
  migration: Use atomic ops properly for page accountings
  migration: Teach PSS about host page
  migration: Introduce pss_channel
  migration: Add pss_init()
  migration: Make PageSearchStatus part of RAMState
  migration: Move last_sent_block into PageSearchStatus
  migration: Send requested page directly in rp-return thread
  migration: Remove old preempt code around state maintainance
  migration: Drop rs->f

ling xu (2):
  Update AVX512 support for xbzrle_encode_buffer
  Unit test code and benchmark code

manish.mishra (1):
  migration: check magic value for deciding the mapping of channels

 meson.build                   |  16 +
 include/exec/ram_addr.h       |  11 +-
 include/exec/ramblock.h       |   3 +
 include/io/channel.h          |  25 ++
 include/qemu/bitmap.h         |   1 +
 migration/migration.h         |   7 -
 migration/multifd.h           |  10 +-
 migration/postcopy-ram.h      |   2 +-
 migration/ram.h               |  23 +
 migration/xbzrle.h            |   4 +
 io/channel-socket.c           |  27 ++
 io/channel.c                  |  39 ++
 migration/block.c             |   4 +-
 migration/channel-block.c     |   6 +-
 migration/migration.c         | 109 +++--
 migration/multifd-zlib.c      |  14 +-
 migration/multifd-zstd.c      |  12 +-
 migration/multifd.c           |  69 +--
 migration/postcopy-ram.c      |   5 +-
 migration/qemu-file.c         |  27 +-
 migration/ram.c               | 794 +++++++++++++++++-----------------
 migration/xbzrle.c            | 124 ++++++
 tests/bench/xbzrle-bench.c    | 465 ++++++++++++++++++++
 tests/unit/test-xbzrle.c      |  39 +-
 util/bitmap.c                 |  45 ++
 meson_options.txt             |   2 +
 scripts/meson-buildoptions.sh |  14 +-
 tests/bench/meson.build       |   4 +
 28 files changed, 1379 insertions(+), 522 deletions(-)
 create mode 100644 tests/bench/xbzrle-bench.c

-- 
2.38.1

Please resend as a GPG-signed pull request instead of as a patch series.

Thanks,
Stefan