[Qemu-devel] [PULL] iov* function rework (one more time)

[Michael Tokarev]

The following changes since commit 083dbf489d1b0592e910ecfb90b3858c23e49ab7:

  target-microblaze: fix swx build breakage (2012-06-07 10:12:00 +0200)

are available in the git repository at:

  git://git.corpit.ru/qemu.git mjt-iov

for you to fetch changes up to 85c5ece9bc0bd30f0573e43d1ddd756154ac6849:

  rewrite iov_send_recv() and move it to iov.c (2012-06-07 21:22:54 +0400)

----------------------------------------------------------------
Michael Tokarev (11):
      virtio-serial-bus: use correct lengths in control_out() message
      change iov_* function prototypes to be more appropriate
      rewrite iov_* functions
      consolidate qemu_iovec_memset{,_skip}() into single function and use 
existing iov_memset()
      allow qemu_iovec_from_buffer() to specify offset from which to start 
copying
      consolidate qemu_iovec_copy() and qemu_iovec_concat() and make them 
consistent
      change qemu_iovec_to_buf() to match other to,from_buf functions
      rename qemu_sendv to iov_send, change proto and move declarations to iov.h
      export iov_send_recv() and use it in iov_send() and iov_recv()
      cleanup qemu_co_sendv(), qemu_co_recvv() and friends
      rewrite iov_send_recv() and move it to iov.c

This is the same patchset which has been submitted, resubmitted,
rewritten, resubmitted, split, resubmitted, merged, rewritten again,
resubmitted and finally received a promise from Anthony to be looked
at.  Today, months later, I'm still awaiiting for the answer, and,
while I said before that the last resubmission was, well, last,
since I bothered so many people so many times, I decided to break
my promise, rebase against current qemy/master and resend it,
now as a git pull request, to not mailbomb people again.  The rebase
took quite some work again, since the code changed (obviously) since
the patchset was ready before.  During rebase I reviewed all the
commit messages too, and removed all the Cc lines they had.

As far as I remember, all comments about the patchset has been
addressed or answered, the last event was the above mentioned
promise.

I ensured that each commit in the series compiles and works (this
time I didn't perform extensive tests as before, just very basic
tests), so it is bisectable as before.

The description for the patchset is the same as before, can be found
at http://thread.gmane.org/gmane.comp.emulators.qemu/142079 .
New diffstat is below.

The patchest can be browsed online at
http://git.corpit.ru/?p=qemu.git;a=shortlog;h=refs/heads/mjt-iov

Please pull.

Thanks,

/mjt

 Makefile.objs          |    2 +-
 block.c                |   12 ++---
 block/curl.c           |    6 +--
 block/iscsi.c          |    3 +-
 block/nbd.c            |   18 ++++---
 block/qcow.c           |    4 +-
 block/qcow2.c          |   21 ++++----
 block/qed.c            |   10 ++--
 block/rbd.c            |    4 +-
 block/sheepdog.c       |    6 +--
 cutils.c               |  234 
++++++++++++---------------------------------------------------------------------------
 hw/9pfs/virtio-9p.c    |    8 +--
 hw/rtl8139.c           |    2 +-
 hw/usb/core.c          |    6 +--
 hw/virtio-balloon.c    |    4 +-
 hw/virtio-net.c        |    4 +-
 hw/virtio-serial-bus.c |   10 ++--
 iov.c                  |  192 
++++++++++++++++++++++++++++++++++++++++++++++++++++-------------------
 iov.h                  |   77 ++++++++++++++++++++++++++---
 linux-aio.c            |    4 +-
 net.c                  |    2 +-
 posix-aio-compat.c     |    8 ++-
 qemu-common.h          |   56 ++++++++++-----------
 qemu-coroutine-io.c    |   83 ++++++++++---------------------
 tests/Makefile         |    2 +
 tests/test-iov.c       |  260 
+++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
 26 files changed, 620 insertions(+), 418 deletions(-)
 create mode 100644 tests/test-iov.c