This patchset changes the wait api to use freezable_schedule when possible and adds a new wait_event_freezable_hrtimeout method.
wait_event_freezable_hrtimeout is then used to greatly simplify handle_vsoc_cond_wait in the android vsoc driver. This reduces the size of the vsoc driver and allows for potential performance gain during freeze in the wait api. This is a follow up of my previous patch "sched/wait: introduce wait_event_freezable_hrtimeout"[0]. More information related to the performance gain by using freezable_schedule can be found in the previous discussion[1]. [0] https://lkml.org/lkml/2019/1/17/877 [1] https://lkml.org/lkml/2019/1/19/58 Hugo Lefeuvre (3): sched/wait: use freezable_schedule when possible sched/wait: introduce wait_event_freezable_hrtimeout staging/android: simplify handle_vsoc_cond_wait drivers/staging/android/vsoc.c | 69 +++++----------------------------- include/linux/wait.h | 31 +++++++++++---- 2 files changed, 34 insertions(+), 66 deletions(-) -- 2.20.1 _______________________________________________ devel mailing list de...@linuxdriverproject.org http://driverdev.linuxdriverproject.org/mailman/listinfo/driverdev-devel
