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authorMike Galbraith <efault@gmx.de>2011-01-13 04:54:50 +0100
committerIngo Molnar <mingo@elte.hu>2011-01-18 15:09:42 +0100
commitf44937718ce3b8360f72f6c68c9481712517a867 (patch)
tree72b07f4daa686e10f90b666f5b61b66b30bbed2d /kernel/sched_autogroup.h
parentsched: Display autogroup names in /proc/sched_debug (diff)
downloadlinux-f44937718ce3b8360f72f6c68c9481712517a867.tar.xz
linux-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.h4
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)