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| author | Mike Galbraith <efault@gmx.de> | 2011-01-13 04:54:50 +0100 |
|---|---|---|
| committer | Ingo Molnar <mingo@elte.hu> | 2011-01-18 15:09:42 +0100 |
| commit | f44937718ce3b8360f72f6c68c9481712517a867 (patch) | |
| tree | 72b07f4daa686e10f90b666f5b61b66b30bbed2d /kernel/sched_autogroup.h | |
| parent | 8ecedd7a06d27a31dbb36fab88e2ba6e6edd43ca (diff) | |
| download | lwn-f44937718ce3b8360f72f6c68c9481712517a867.tar.gz lwn-f44937718ce3b8360f72f6c68c9481712517a867.zip | |
sched, autogroup: Fix CONFIG_RT_GROUP_SCHED sched_setscheduler() failure
If CONFIG_RT_GROUP_SCHED is set, __sched_setscheduler() fails due to autogroup
not allocating rt_runtime. Free unused/unusable rt_se and rt_rq, redirect RT
tasks to the root task group, and tell __sched_setscheduler() that it's ok.
Reported-and-tested-by: Bharata B Rao <bharata@linux.vnet.ibm.com>
Signed-off-by: Mike Galbraith <efault@gmx.de>
Signed-off-by: Peter Zijlstra <a.p.zijlstra@chello.nl>
LKML-Reference: <1294890890.8089.39.camel@marge.simson.net>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Diffstat (limited to 'kernel/sched_autogroup.h')
| -rw-r--r-- | kernel/sched_autogroup.h | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/kernel/sched_autogroup.h b/kernel/sched_autogroup.h index 5358e241cb20..7b859ffe5dad 100644 --- a/kernel/sched_autogroup.h +++ b/kernel/sched_autogroup.h @@ -15,6 +15,10 @@ autogroup_task_group(struct task_struct *p, struct task_group *tg); static inline void autogroup_init(struct task_struct *init_task) { } static inline void autogroup_free(struct task_group *tg) { } +static inline bool task_group_is_autogroup(struct task_group *tg) +{ + return 0; +} static inline struct task_group * autogroup_task_group(struct task_struct *p, struct task_group *tg) |