Messages in this thread | | | Date | Fri, 1 Feb 2019 06:37:10 +0100 | From | Hugo Lefeuvre <> | Subject | [PATCH 0/3] sched/wait, staging/android: simplification and optimization of freeze related code |
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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
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