Include appropriate header file kernel/time/timekeeping_internal.h in
kernel/time/timekeeping_debug.c because it has prototype declaration of
function defined in kernel/time/timekeeping_debug.c.
This eliminates the following warning in
kernel/time/timekeeping_debug.c:
kernel/time/timekeeping_debug.c:68:6: warning: no previous prototype for ‘tk_debug_account_sleep_time’ [-Wmissing-prototypes]
Signed-off-by: Rashika Kheria <[email protected]>
Reviewed-by: Josh Triplett <[email protected]>
Signed-off-by: John Stultz <[email protected]>
Below is a patch from android kernel that maintains a histogram of
suspend times. Please review and provide feedback.
Statistices on the time spent in suspend are kept in
/sys/kernel/debug/sleep_time.
Cc: Android Kernel Team <[email protected]>
Cc: Colin Cross <[email protected]>
Cc: Todd Poynor <[email protected]>
Cc: San Mehat <[email protected]>
Cc: Benoit Goby <[email protected]>
Cc: John Stultz <[email protected]>
Cc: Thomas Gleixner <[email protected]>
Signed-off-by: Colin Cross <[email protected]>
Signed-off-by: Todd Poynor <[email protected]>
[[email protected]: Re-formatted suspend time table to better
fit expected values. Moved accounting of suspend time into timekeeping
core. Removed CONFIG_SUSPEND_TIME flag and made the feature conditional
on CONFIG_DEBUG_FS. Changed the file name to sleep_time to better fit
terminology in timekeeping core. Changed seq_printf to seq_puts. Tweaked
commit message]
Signed-off-by: Zoran Markovic <[email protected]>
Signed-off-by: John Stultz <[email protected]>
Rashika Kheria