From f2902f9065c5ec4f475367e5d39bdfff0d41fda6 Mon Sep 17 00:00:00 2001 From: Ruchi Kandoi Date: Fri, 18 Apr 2014 14:07:28 -0700 Subject: prctl: adds PR_SET_TIMERSLACK_PID for setting timer slack of an arbitrary thread. Second argument is similar to PR_SET_TIMERSLACK, if non-zero then the slack is set to that value otherwise sets it to the default for the thread. Takes PID of the thread as the third argument. This allows power/performance management software to set timer slack for other threads according to its policy for the thread (such as when the thread is designated foreground vs. background activity) Change-Id: I744d451ff4e60dae69f38f53948ff36c51c14a3f Signed-off-by: Ruchi Kandoi --- include/uapi/linux/prctl.h | 6 ++++++ 1 file changed, 6 insertions(+) (limited to 'include/uapi/linux') diff --git a/include/uapi/linux/prctl.h b/include/uapi/linux/prctl.h index a8d0759a9e40..eea2fc75a98f 100644 --- a/include/uapi/linux/prctl.h +++ b/include/uapi/linux/prctl.h @@ -197,4 +197,10 @@ struct prctl_mm_map { # define PR_CAP_AMBIENT_LOWER 3 # define PR_CAP_AMBIENT_CLEAR_ALL 4 +/* Sets the timerslack for arbitrary threads + * arg2 slack value, 0 means "use default" + * arg3 pid of the thread whose timer slack needs to be set + */ +#define PR_SET_TIMERSLACK_PID 47 + #endif /* _LINUX_PRCTL_H */ -- cgit v1.2.3