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authorRussell King <rmk+kernel@arm.linux.org.uk>2014-03-19 21:15:46 +0100
committerRussell King <rmk+kernel@arm.linux.org.uk>2014-03-19 21:15:46 +0100
commit566b60c04ab230b8cc3845f964306f99504b18df (patch)
tree1897a526488c3496f4ffe5eebb39a1dd41ab731d /kernel/sched/deadline.c
parentMerge branch 'for-rmk/perf' of git://git.kernel.org/pub/scm/linux/kernel/git/... (diff)
parentARM: add uprobes support (diff)
downloadlinux-566b60c04ab230b8cc3845f964306f99504b18df.tar.xz
linux-566b60c04ab230b8cc3845f964306f99504b18df.zip
Merge branch 'uprobes-v7' of git://git.linaro.org/people/dave.long/linux into devel-stable
This patch series adds basic uprobes support to ARM. It is based on patches developed earlier by Rabin Vincent. That approach of adding hooks into the kprobes instruction parsing code was not well received. This approach separates the ARM instruction parsing code in kprobes out into a separate set of functions which can be used by both kprobes and uprobes. Both kprobes and uprobes then provide their own semantic action tables to process the results of the parsing.
Diffstat (limited to 'kernel/sched/deadline.c')
-rw-r--r--kernel/sched/deadline.c10
1 files changed, 3 insertions, 7 deletions
diff --git a/kernel/sched/deadline.c b/kernel/sched/deadline.c
index 0dd5e0971a07..15cbc17fbf84 100644
--- a/kernel/sched/deadline.c
+++ b/kernel/sched/deadline.c
@@ -121,7 +121,7 @@ static inline void dl_clear_overload(struct rq *rq)
static void update_dl_migration(struct dl_rq *dl_rq)
{
- if (dl_rq->dl_nr_migratory && dl_rq->dl_nr_total > 1) {
+ if (dl_rq->dl_nr_migratory && dl_rq->dl_nr_running > 1) {
if (!dl_rq->overloaded) {
dl_set_overload(rq_of_dl_rq(dl_rq));
dl_rq->overloaded = 1;
@@ -137,7 +137,6 @@ static void inc_dl_migration(struct sched_dl_entity *dl_se, struct dl_rq *dl_rq)
struct task_struct *p = dl_task_of(dl_se);
dl_rq = &rq_of_dl_rq(dl_rq)->dl;
- dl_rq->dl_nr_total++;
if (p->nr_cpus_allowed > 1)
dl_rq->dl_nr_migratory++;
@@ -149,7 +148,6 @@ static void dec_dl_migration(struct sched_dl_entity *dl_se, struct dl_rq *dl_rq)
struct task_struct *p = dl_task_of(dl_se);
dl_rq = &rq_of_dl_rq(dl_rq)->dl;
- dl_rq->dl_nr_total--;
if (p->nr_cpus_allowed > 1)
dl_rq->dl_nr_migratory--;
@@ -717,6 +715,7 @@ void inc_dl_tasks(struct sched_dl_entity *dl_se, struct dl_rq *dl_rq)
WARN_ON(!dl_prio(prio));
dl_rq->dl_nr_running++;
+ inc_nr_running(rq_of_dl_rq(dl_rq));
inc_dl_deadline(dl_rq, deadline);
inc_dl_migration(dl_se, dl_rq);
@@ -730,6 +729,7 @@ void dec_dl_tasks(struct sched_dl_entity *dl_se, struct dl_rq *dl_rq)
WARN_ON(!dl_prio(prio));
WARN_ON(!dl_rq->dl_nr_running);
dl_rq->dl_nr_running--;
+ dec_nr_running(rq_of_dl_rq(dl_rq));
dec_dl_deadline(dl_rq, dl_se->deadline);
dec_dl_migration(dl_se, dl_rq);
@@ -836,8 +836,6 @@ static void enqueue_task_dl(struct rq *rq, struct task_struct *p, int flags)
if (!task_current(rq, p) && p->nr_cpus_allowed > 1)
enqueue_pushable_dl_task(rq, p);
-
- inc_nr_running(rq);
}
static void __dequeue_task_dl(struct rq *rq, struct task_struct *p, int flags)
@@ -850,8 +848,6 @@ static void dequeue_task_dl(struct rq *rq, struct task_struct *p, int flags)
{
update_curr_dl(rq);
__dequeue_task_dl(rq, p, flags);
-
- dec_nr_running(rq);
}
/*