diff options
| author | Ruchi Kandoi <kandoiruchi@google.com> | 2014-04-18 14:07:28 -0700 |
|---|---|---|
| committer | Ruchi Kandoi <kandoiruchi@google.com> | 2014-04-22 17:31:53 -0700 |
| commit | 37a591d407084b967bb49acc3fe21c446b075d55 (patch) | |
| tree | 89182255cb108293cec840edee6cc55048a51aa7 /include/uapi | |
| parent | a2acc58bc7460a03627f20842a7169d7a1328299 (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/uapi')
| -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 253856a2a8ad..28bb0b3a08bf 100644 --- a/include/uapi/linux/prctl.h +++ b/include/uapi/linux/prctl.h @@ -149,6 +149,12 @@ #define PR_GET_TID_ADDRESS 40 +/* 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 41 + #define PR_SET_VMA 0x53564d41 # define PR_SET_VMA_ANON_NAME 0 |