diff options
| author | Pavankumar Kondeti <pkondeti@codeaurora.org> | 2017-06-28 12:00:31 +0530 |
|---|---|---|
| committer | Pavankumar Kondeti <pkondeti@codeaurora.org> | 2017-08-07 16:08:23 +0530 |
| commit | a66b3eb5aff1536bc32e5e5eb60393610a21dd06 (patch) | |
| tree | 863007cd12e7f421e6854355d0ffd8b244deadf5 /include/linux/sched.h | |
| parent | ca652b3d74c674ee4847ce56199889fd247106e6 (diff) | |
softirq: defer softirq processing to ksoftirqd if CPU is busy with RT
Defer the softirq processing to ksoftirqd if a RT task is running
or queued on the current CPU. This complements the RT task placement
algorithm which tries to find a CPU that is not currently busy with
softirqs.
Currently NET_TX, NET_RX, BLOCK and TASKLET softirqs are only deferred
as they can potentially run for long time.
Change-Id: Id7665244af6bbd5a96d9e591cf26154e9eaa860c
Signed-off-by: Pavankumar Kondeti <pkondeti@codeaurora.org>
Diffstat (limited to 'include/linux/sched.h')
| -rw-r--r-- | include/linux/sched.h | 5 |
1 files changed, 5 insertions, 0 deletions
diff --git a/include/linux/sched.h b/include/linux/sched.h index 57042d91ae9c..baf107821d9a 100644 --- a/include/linux/sched.h +++ b/include/linux/sched.h @@ -2481,6 +2481,7 @@ extern void do_set_cpus_allowed(struct task_struct *p, extern int set_cpus_allowed_ptr(struct task_struct *p, const struct cpumask *new_mask); +extern bool cpupri_check_rt(void); #else static inline void do_set_cpus_allowed(struct task_struct *p, const struct cpumask *new_mask) @@ -2493,6 +2494,10 @@ static inline int set_cpus_allowed_ptr(struct task_struct *p, return -EINVAL; return 0; } +static inline bool cpupri_check_rt(void) +{ + return false; +} #endif struct sched_load { |