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| author | Srivatsa Vaddagiri <vatsa@linux.vnet.ibm.com> | 2007-10-15 17:00:12 +0200 |
|---|---|---|
| committer | Ingo Molnar <mingo@elte.hu> | 2007-10-15 17:00:12 +0200 |
| commit | 2830cf8c90f37526d401f1999250312df970bfa3 (patch) | |
| tree | 9f40ff1f624cba21be3db086d3d87716e0b1f66f | |
| parent | sched: clean up schedstats, cnt -> count (diff) | |
| download | linux-2830cf8c90f37526d401f1999250312df970bfa3.tar.xz linux-2830cf8c90f37526d401f1999250312df970bfa3.zip | |
sched: group scheduler SMP migration fix
group scheduler SMP migration fix: use task_cfs_rq(p) to get
to the relevant fair-scheduling runqueue of a task, rq->cfs
is not the right one.
Signed-off-by: Ingo Molnar <mingo@elte.hu>
| -rw-r--r-- | kernel/sched.c | 5 |
1 files changed, 4 insertions, 1 deletions
diff --git a/kernel/sched.c b/kernel/sched.c index ba9fa6c0ab65..e1657e0c86d0 100644 --- a/kernel/sched.c +++ b/kernel/sched.c @@ -1040,6 +1040,8 @@ void set_task_cpu(struct task_struct *p, unsigned int new_cpu) { int old_cpu = task_cpu(p); struct rq *old_rq = cpu_rq(old_cpu), *new_rq = cpu_rq(new_cpu); + struct cfs_rq *old_cfsrq = task_cfs_rq(p), + *new_cfsrq = cpu_cfs_rq(old_cfsrq, new_cpu); u64 clock_offset; clock_offset = old_rq->clock - new_rq->clock; @@ -1052,7 +1054,8 @@ void set_task_cpu(struct task_struct *p, unsigned int new_cpu) if (p->se.block_start) p->se.block_start -= clock_offset; #endif - p->se.vruntime -= old_rq->cfs.min_vruntime - new_rq->cfs.min_vruntime; + p->se.vruntime -= old_cfsrq->min_vruntime - + new_cfsrq->min_vruntime; __set_task_cpu(p, new_cpu); } |