[Qemu-devel] [PATCH 0/2] qemu-timer: make qemu_timer_mod_ns() and qemu_timer_del() thread-safe

[Stefan Hajnoczi <stefanha@redhat.com>]

These patches are based on Alex Bligh's v10 AioContext timers series.

The purpose of these patches is to eventually allow device models to set and
cancel timers without holding the global mutex.  When the device model runs in
a vcpu thread and the iothread processes timers, the
QEMUTimerList->active_timers must be protected from concurrent access.

Patch 1 is a clean-up.

Patch 2 is the entire change needed to protect ->active_timers.

Stefan Hajnoczi (2):
  qemu-timer: drop outdated signal safety comments
  qemu-timer: make qemu_timer_mod_ns() and qemu_timer_del() thread-safe

 include/qemu/timer.h | 17 +++++++++++++
 qemu-timer.c         | 70 ++++++++++++++++++++++++++++++++++++++--------------
 2 files changed, 69 insertions(+), 18 deletions(-)

-- 
1.8.3.1