moonjuice/kernel_arpi
1
0
Fork 0
Code Issues Pull Requests Packages Projects Releases Wiki Activity

ANDROID: kernel: sched: tracehook for is_cpu_allowed

Browse Source 
To support the replacement of pause, is_cpu_allowed is the best
place to hook into the code to restrict CPUs for a module based
implementation. This restricts select_fallback_rq, select_task_rq,
and __migate_task, to ensure the cpu is allowed.

Include a hook in is_cpu_allowed to allow the module to control
which cpu is allowed during a migration event.

Bug: 205164003
Change-Id: I665e4d39318079bdb99bd248969ecb9eb528f9df
Signed-off-by: Stephen Dickey <quic_dickey@quicinc.com>
This commit is contained in:
Stephen Dickey
2022-01-10 14:13:51 -08:00
committed by Todd Kjos
parent 50f5345c87
commit a243208877
3 changed files with 15 additions and 2 deletions
Download Patch File Download Diff File Expand all files Collapse all files

1
drivers/android/vendor_hooks.c
View File

@@ -195,6 +195,7 @@ EXPORT_TRACEPOINT_SYMBOL_GPL(android_vh_check_file_open);
EXPORT_TRACEPOINT_SYMBOL_GPL(android_vh_check_bpf_syscall);
EXPORT_TRACEPOINT_SYMBOL_GPL(android_rvh_set_cpus_allowed_ptr_locked);
EXPORT_TRACEPOINT_SYMBOL_GPL(android_rvh_rto_next_cpu);
EXPORT_TRACEPOINT_SYMBOL_GPL(android_rvh_is_cpu_allowed);
EXPORT_TRACEPOINT_SYMBOL_GPL(android_vh_em_dev_register_pd);
EXPORT_TRACEPOINT_SYMBOL_GPL(android_vh_logbuf);
EXPORT_TRACEPOINT_SYMBOL_GPL(android_vh_logbuf_pr_cont);