diff options
| author | Ruchi Kandoi <kandoiruchi@google.com> | 2014-04-18 14:07:28 -0700 |
|---|---|---|
| committer | Ruchi Kandoi <kandoiruchi@google.com> | 2015-02-04 14:10:16 -0800 |
| commit | 017b518b3751d8256fb740470ae85f70a0853dc4 (patch) | |
| tree | 5a97a5a6599b91e75cba0ac9694c44768f165d13 /include | |
| parent | 53b5e2f0b1cebfd3493ba8ba3bb9d14924a9fa11 (diff) | |
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 <kandoiruchi@google.com>
Diffstat (limited to 'include')
| -rw-r--r-- | include/uapi/linux/prctl.h | 6 |
1 files changed, 6 insertions, 0 deletions
diff --git a/include/uapi/linux/prctl.h b/include/uapi/linux/prctl.h index 80d4382cfe23..933ff2a9a032 100644 --- a/include/uapi/linux/prctl.h +++ b/include/uapi/linux/prctl.h @@ -179,6 +179,12 @@ struct prctl_mm_map { #define PR_SET_THP_DISABLE 41 #define PR_GET_THP_DISABLE 42 +/* 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 43 + #define PR_SET_VMA 0x53564d41 # define PR_SET_VMA_ANON_NAME 0 |