Saw the Alex's patches has been merged, rebase mine onto his. v3: 1. rename seqlock_read_check as seqlock_read_retry 2. Document timerlist were protected by BQL, and discard private lock around "qemu_event_wait(tl->ev)".
v2: 1. fix comment in commit and code 2. fix race issue for qemu_clock_enable(foo,disable) 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 | 4 ++ qemu-timer.c | 20 +++++++- util/qemu-thread-posix.c | 116 ++++++++++++++++++++++++++++++++++++++++++++ util/qemu-thread-win32.c | 26 ++++++++++ 9 files changed, 286 insertions(+), 7 deletions(-) create mode 100644 include/qemu/seqlock.h -- 1.8.1.4