Messages in this thread Patch in this message | | | From | Valentin Schneider <> | Subject | [PATCH v5 17/17] sched/topology: Expand use of SD_DEGENERATE_GROUPS_MASK to flags not needing groups | Date | Wed, 12 Aug 2020 13:53:00 +0100 |
| |
All SD flags requiring 2+ sched_group to have any effect are now decorated with the SDF_NEEDS_GROUPS metaflag. This means we can now use the bitwise negation of SD_DEGENERATE_MASK in sd_degenerate() instead of explicitly using SD_WAKE_AFFINE (IOW the only flag without SDF_NEEDS_GROUPS).
From now on, any flag without SDF_NEEDS_GROUPS will be correctly accounted as a flag not requiring 2+ sched_groups.
Signed-off-by: Valentin Schneider <valentin.schneider@arm.com> --- kernel/sched/topology.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/kernel/sched/topology.c b/kernel/sched/topology.c index 8064f495641b..3bb145ef5abd 100644 --- a/kernel/sched/topology.c +++ b/kernel/sched/topology.c @@ -165,7 +165,7 @@ static int sd_degenerate(struct sched_domain *sd) return 0; /* Following flags don't use groups */ - if (sd->flags & (SD_WAKE_AFFINE)) + if (sd->flags & ~SD_DEGENERATE_GROUPS_MASK) return 0; return 1; -- 2.27.0
| |