[Qemu-devel] [PATCH 0/4]: timers thread-safe stuff

[Liu Ping Fan]

The patches has been rebased onto Alex's [RFC] [PATCHv5 00/16] aio / timers: 
Add AioContext timers and use ppoll
     permalink.gmane.org/gmane.comp.emulators.qemu/226333

For some other complied error issue, I can not finish compiling, will fix it 
later.

Changes since last version:
 1. drop the overlap partition and leave only thread-safe stuff
 2. For timers_state, since currently, only vm_clock can be read outside BQL.
    There is no protection with ticks(since the protection will cost more in 
read_tsc path).
 3. use light weight QemuEvent to re-implement the qemu_clock_enable(foo,false)


Liu Ping Fan (2):
  timer: protect timers_state's clock with seqlock
  timer: make qemu_clock_enable sync between disable and timer's cb

Paolo Bonzini (2):
  seqlock: introduce read-write seqlock
  qemu-thread: add QemuEvent

 cpus.c                      |  36 +++++++++++---
 include/qemu/seqlock.h      |  72 +++++++++++++++++++++++++++
 include/qemu/thread-posix.h |   8 +++
 include/qemu/thread-win32.h |   4 ++
 include/qemu/thread.h       |   7 +++
 include/qemu/timer.h        |   1 +
 qemu-timer.c                |  11 +++++
 util/qemu-thread-posix.c    | 116 ++++++++++++++++++++++++++++++++++++++++++++
 util/qemu-thread-win32.c    |  26 ++++++++++
 9 files changed, 274 insertions(+), 7 deletions(-)
 create mode 100644 include/qemu/seqlock.h

-- 
1.8.1.4