Donate to e Foundation | Murena handsets with /e/OS | Own a part of Murena! Learn more

Commit 80f5fbf6 authored by Pavankumar Kondeti's avatar Pavankumar Kondeti
Browse files

sched: fix bug in auto adjustment of group upmigrate/downmigrate 



sched_group_upmigrate tunable can accept values greater than
100%. Don't limit it to 100% while doing the auto adjustment.

Change-Id: I3d1c1e84f2f4dec688235feb1536b9261a3e808b
Signed-off-by: default avatarPavankumar Kondeti <pkondeti@codeaurora.org>
parent 41b41665

kernel/sched/hmp.c

+6 −5
Original line number Diff line number Diff line
@@ -952,8 +952,8 @@ unsigned int __read_mostly sysctl_sched_restrict_cluster_spill; 
unsigned int __read_mostly sysctl_sched_short_burst;

unsigned int __read_mostly sysctl_sched_short_sleep = 1 * NSEC_PER_MSEC;



static void

_update_up_down_migrate(unsigned int *up_migrate, unsigned int *down_migrate)

static void _update_up_down_migrate(unsigned int *up_migrate,

			unsigned int *down_migrate, bool is_group)

{

	unsigned int delta;
@@ -967,6 +967,7 @@ _update_up_down_migrate(unsigned int *up_migrate, unsigned int *down_migrate) 
	*up_migrate >>= 10;

	*up_migrate *= NSEC_PER_USEC;



	if (!is_group)

		*up_migrate = min(*up_migrate, sched_ravg_window);



	*down_migrate /= NSEC_PER_USEC;
@@ -982,14 +983,14 @@ static void update_up_down_migrate(void) 
	unsigned int up_migrate = pct_to_real(sysctl_sched_upmigrate_pct);

	unsigned int down_migrate = pct_to_real(sysctl_sched_downmigrate_pct);



	_update_up_down_migrate(&up_migrate, &down_migrate);

	_update_up_down_migrate(&up_migrate, &down_migrate, false);

	sched_upmigrate = up_migrate;

	sched_downmigrate = down_migrate;



	up_migrate = pct_to_real(sysctl_sched_group_upmigrate_pct);

	down_migrate = pct_to_real(sysctl_sched_group_downmigrate_pct);



	_update_up_down_migrate(&up_migrate, &down_migrate);

	_update_up_down_migrate(&up_migrate, &down_migrate, true);

	sched_group_upmigrate = up_migrate;

	sched_group_downmigrate = down_migrate;

}