vulkan/wsi: fix possible random stalls in wsi_display_wait_for_event
pthread_cond_broadcast man page says this:
"The pthread_cond_broadcast() or pthread_cond_signal() functions may
be called by a thread whether or not it currently owns the mutex that
threads calling pthread_cond_wait() or pthread_cond_timedwait() have
associated with the condition variable during their waits; however,
if predictable scheduling behavior is required, then that mutex shall
be locked by the thread calling pthread_cond_broadcast() or
pthread_cond_signal()."
Found by reading the code.
Compile tested only.
Fixes: da997ebec92 ("vulkan: Add KHR_display extension using DRM [v10]")
Signed-off-by: Marcin Ślusarz <marcin.slusarz@intel.com>
Reviewed-by: Lionel Landwerlin <lionel.g.landwerlin@intel.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/7197>
1 file changed
