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| author | David S. Miller <davem@davemloft.net> | 2016-05-09 19:59:24 (GMT) |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2016-05-09 19:59:24 (GMT) |
| commit | e800072c18f0d7b89a80fa46dceb3d080c80e09c (patch) | |
| tree | 8da6cb7944762a60ec37594720c1ad2757631c2f /kernel | |
| parent | e8ed77dfa90dd79c5343415a4bbbfdab9787b35a (diff) | |
| parent | b507146bb6b9ac0c0197100ba3e299825a21fed3 (diff) | |
| download | linux-e800072c18f0d7b89a80fa46dceb3d080c80e09c.tar.xz | |
Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net
In netdevice.h we removed the structure in net-next that is being
changes in 'net'. In macsec.c and rtnetlink.c we have overlaps
between fixes in 'net' and the u64 attribute changes in 'net-next'.
The mlx5 conflicts have to do with vxlan support dependencies.
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'kernel')
| -rw-r--r-- | kernel/sched/core.c | 29 | ||||
| -rw-r--r-- | kernel/trace/trace_events.c | 9 |
2 files changed, 23 insertions, 15 deletions
diff --git a/kernel/sched/core.c b/kernel/sched/core.c index 8b489fc..d1f7149 100644 --- a/kernel/sched/core.c +++ b/kernel/sched/core.c @@ -596,17 +596,8 @@ bool sched_can_stop_tick(struct rq *rq) return false; /* - * FIFO realtime policy runs the highest priority task (after DEADLINE). - * Other runnable tasks are of a lower priority. The scheduler tick - * isn't needed. - */ - fifo_nr_running = rq->rt.rt_nr_running - rq->rt.rr_nr_running; - if (fifo_nr_running) - return true; - - /* - * Round-robin realtime tasks time slice with other tasks at the same - * realtime priority. + * If there are more than one RR tasks, we need the tick to effect the + * actual RR behaviour. */ if (rq->rt.rr_nr_running) { if (rq->rt.rr_nr_running == 1) @@ -615,8 +606,20 @@ bool sched_can_stop_tick(struct rq *rq) return false; } - /* Normal multitasking need periodic preemption checks */ - if (rq->cfs.nr_running > 1) + /* + * If there's no RR tasks, but FIFO tasks, we can skip the tick, no + * forced preemption between FIFO tasks. + */ + fifo_nr_running = rq->rt.rt_nr_running - rq->rt.rr_nr_running; + if (fifo_nr_running) + return true; + + /* + * If there are no DL,RR/FIFO tasks, there must only be CFS tasks left; + * if there's more than one we need the tick for involuntary + * preemption. + */ + if (rq->nr_running > 1) return false; return true; diff --git a/kernel/trace/trace_events.c b/kernel/trace/trace_events.c index ced9630..b7b0760 100644 --- a/kernel/trace/trace_events.c +++ b/kernel/trace/trace_events.c @@ -2113,8 +2113,13 @@ event_create_dir(struct dentry *parent, struct trace_event_file *file) trace_create_file("filter", 0644, file->dir, file, &ftrace_event_filter_fops); - trace_create_file("trigger", 0644, file->dir, file, - &event_trigger_fops); + /* + * Only event directories that can be enabled should have + * triggers. + */ + if (!(call->flags & TRACE_EVENT_FL_IGNORE_ENABLE)) + trace_create_file("trigger", 0644, file->dir, file, + &event_trigger_fops); trace_create_file("format", 0444, file->dir, call, &ftrace_event_format_fops); |