[PATCH 1/8] Fix rt_rq->pushable_tasks initialization in init_rt_rq()

From: Fabio Checconi
Date: Mon Jun 15 2009 - 14:55:49 EST

init_rt_rq() initializes only rq->rt.pushable_tasks, and not the
pushable_tasks field of the passed rt_rq. The plist is not used
uninitialized since the only pushable_tasks plists used are the
ones of root rt_rqs; anyway reinitializing the list on every group
creation corrupts the root plist, losing its previous contents.

Signed-off-by: Fabio Checconi <fabio@xxxxxxxxxxxxxxxx>
kernel/sched.c | 2 +-
1 files changed, 1 insertions(+), 1 deletions(-)

diff --git a/kernel/sched.c b/kernel/sched.c
index 6032f51..873b252 100644
--- a/kernel/sched.c
+++ b/kernel/sched.c
@@ -9075,7 +9075,7 @@ static void init_rt_rq(struct rt_rq *rt_rq, struct rq *rq)
rt_rq->rt_nr_migratory = 0;
rt_rq->overloaded = 0;
- plist_head_init(&rq->rt.pushable_tasks, &rq->lock);
+ plist_head_init(&rt_rq->pushable_tasks, &rq->lock);

rt_rq->rt_time = 0;

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