[PATCH 0/3] sched/wait, staging/android: simplification and optimization of freeze related code

[Hugo Lefeuvre <hle@owl.eu.com>]

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