[PATCH 0/2] Make local migration with TAP network device possible

[Andrey Ryabinin]

Hi

These couple patches aims to  make possible local migration (within one host)
on the same TAP device used by source and destination QEMU

The scenario looks like this
 1. Create TAP devices and pass file descriptors to source QEMU
 2. Launch destination QEMU (-incoming defer) and pass same descriptors to it.
 3. Start migration


Regarding the first patch: It makes possible to receive file descriptor in 
non-blocking
state. But I probably didn't cover all FD users which might need to set 
blocking state after
the patch. So I'm hopping for the hints where else, besides 
fd_start_incoming_migration()
I need to put qemu_socket_set_block() calls.


Andrey Ryabinin (2):
  chardev: don't set O_NONBLOCK on SCM_RIGHTS file descriptors.
  tap: initialize TAPState->enabled according to the actual state of
    queue

 chardev/char-socket.c |  3 ---
 io/channel-socket.c   |  3 ---
 migration/fd.c        |  2 ++
 net/tap-bsd.c         |  5 +++++
 net/tap-linux.c       | 12 ++++++++++++
 net/tap-solaris.c     |  5 +++++
 net/tap.c             |  2 +-
 net/tap_int.h         |  1 +
 8 files changed, 26 insertions(+), 7 deletions(-)

-- 
2.35.1