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authorClark Williams <williams@redhat.com>2013-02-07 09:47:07 -0600
committerIngo Molnar <mingo@kernel.org>2013-02-07 20:51:08 +0100
commit8bd75c77b7c6a3954140dd2e20346aef3efe4a35 (patch)
tree10e0d451a58aeb6c8f48b871a848276bf3a8a359
parentce0dbbbb30aee6a835511d5be446462388ba9eee (diff)
downloadlinaro-lsk-8bd75c77b7c6a3954140dd2e20346aef3efe4a35.tar.gz
sched/rt: Move rt specific bits into new header file
Move rt scheduler definitions out of include/linux/sched.h into new file include/linux/sched/rt.h Signed-off-by: Clark Williams <williams@redhat.com> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Steven Rostedt <rostedt@goodmis.org> Link: http://lkml.kernel.org/r/20130207094707.7b9f825f@riff.lan Signed-off-by: Ingo Molnar <mingo@kernel.org>
-rw-r--r--drivers/spi/spi.c2
-rw-r--r--drivers/staging/csr/bh.c2
-rw-r--r--drivers/staging/csr/unifi_sme.c2
-rw-r--r--drivers/tty/sysrq.c1
-rw-r--r--fs/select.c1
-rw-r--r--include/linux/sched.h55
-rw-r--r--include/linux/sched/rt.h58
-rw-r--r--init/init_task.c1
-rw-r--r--kernel/futex.c1
-rw-r--r--kernel/hrtimer.c1
-rw-r--r--kernel/irq/manage.c1
-rw-r--r--kernel/mutex.c1
-rw-r--r--kernel/rtmutex-debug.c1
-rw-r--r--kernel/rtmutex-tester.c1
-rw-r--r--kernel/rtmutex.c1
-rw-r--r--kernel/sched/cpupri.c2
-rw-r--r--kernel/sched/sched.h1
-rw-r--r--kernel/trace/trace.c1
-rw-r--r--kernel/trace/trace_sched_wakeup.c2
-rw-r--r--kernel/watchdog.c1
-rw-r--r--mm/page-writeback.c1
-rw-r--r--mm/page_alloc.c1
22 files changed, 81 insertions, 57 deletions
diff --git a/drivers/spi/spi.c b/drivers/spi/spi.c
index 19ee901577d..3a6083b386a 100644
--- a/drivers/spi/spi.c
+++ b/drivers/spi/spi.c
@@ -33,7 +33,7 @@
#include <linux/of_gpio.h>
#include <linux/pm_runtime.h>
#include <linux/export.h>
-#include <linux/sched.h>
+#include <linux/sched/rt.h>
#include <linux/delay.h>
#include <linux/kthread.h>
#include <linux/ioport.h>
diff --git a/drivers/staging/csr/bh.c b/drivers/staging/csr/bh.c
index 1a1f5c79822..7b133597e92 100644
--- a/drivers/staging/csr/bh.c
+++ b/drivers/staging/csr/bh.c
@@ -15,7 +15,7 @@
*/
#include "csr_wifi_hip_unifi.h"
#include "unifi_priv.h"
-
+#include <linux/sched/rt.h>
/*
* ---------------------------------------------------------------------------
diff --git a/drivers/staging/csr/unifi_sme.c b/drivers/staging/csr/unifi_sme.c
index 7c6c4138fc7..49395da34b7 100644
--- a/drivers/staging/csr/unifi_sme.c
+++ b/drivers/staging/csr/unifi_sme.c
@@ -15,7 +15,7 @@
#include "unifi_priv.h"
#include "csr_wifi_hip_unifi.h"
#include "csr_wifi_hip_conversions.h"
-
+#include <linux/sched/rt.h>
diff --git a/drivers/tty/sysrq.c b/drivers/tty/sysrq.c
index b3c4a250ff8..40e5b3919e2 100644
--- a/drivers/tty/sysrq.c
+++ b/drivers/tty/sysrq.c
@@ -15,6 +15,7 @@
#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
#include <linux/sched.h>
+#include <linux/sched/rt.h>
#include <linux/interrupt.h>
#include <linux/mm.h>
#include <linux/fs.h>
diff --git a/fs/select.c b/fs/select.c
index 2ef72d96503..8c1c96c2706 100644
--- a/fs/select.c
+++ b/fs/select.c
@@ -26,6 +26,7 @@
#include <linux/fs.h>
#include <linux/rcupdate.h>
#include <linux/hrtimer.h>
+#include <linux/sched/rt.h>
#include <asm/uaccess.h>
diff --git a/include/linux/sched.h b/include/linux/sched.h
index 8fc9b2710a8..33cc4213037 100644
--- a/include/linux/sched.h
+++ b/include/linux/sched.h
@@ -1164,6 +1164,7 @@ struct sched_entity {
/* rq "owned" by this entity/group: */
struct cfs_rq *my_q;
#endif
+
/*
* Load-tracking only depends on SMP, FAIR_GROUP_SCHED dependency below may be
* removed when useful for applications beyond shares distribution (e.g.
@@ -1191,6 +1192,7 @@ struct sched_rt_entity {
#endif
};
+
struct rcu_node;
enum perf_event_task_context {
@@ -1596,37 +1598,6 @@ static inline void set_numabalancing_state(bool enabled)
}
#endif
-/*
- * Priority of a process goes from 0..MAX_PRIO-1, valid RT
- * priority is 0..MAX_RT_PRIO-1, and SCHED_NORMAL/SCHED_BATCH
- * tasks are in the range MAX_RT_PRIO..MAX_PRIO-1. Priority
- * values are inverted: lower p->prio value means higher priority.
- *
- * The MAX_USER_RT_PRIO value allows the actual maximum
- * RT priority to be separate from the value exported to
- * user-space. This allows kernel threads to set their
- * priority to a value higher than any user task. Note:
- * MAX_RT_PRIO must not be smaller than MAX_USER_RT_PRIO.
- */
-
-#define MAX_USER_RT_PRIO 100
-#define MAX_RT_PRIO MAX_USER_RT_PRIO
-
-#define MAX_PRIO (MAX_RT_PRIO + 40)
-#define DEFAULT_PRIO (MAX_RT_PRIO + 20)
-
-static inline int rt_prio(int prio)
-{
- if (unlikely(prio < MAX_RT_PRIO))
- return 1;
- return 0;
-}
-
-static inline int rt_task(struct task_struct *p)
-{
- return rt_prio(p->prio);
-}
-
static inline struct pid *task_pid(struct task_struct *task)
{
return task->pids[PIDTYPE_PID].pid;
@@ -2054,26 +2025,6 @@ static inline void sched_autogroup_fork(struct signal_struct *sig) { }
static inline void sched_autogroup_exit(struct signal_struct *sig) { }
#endif
-#ifdef CONFIG_RT_MUTEXES
-extern int rt_mutex_getprio(struct task_struct *p);
-extern void rt_mutex_setprio(struct task_struct *p, int prio);
-extern void rt_mutex_adjust_pi(struct task_struct *p);
-static inline bool tsk_is_pi_blocked(struct task_struct *tsk)
-{
- return tsk->pi_blocked_on != NULL;
-}
-#else
-static inline int rt_mutex_getprio(struct task_struct *p)
-{
- return p->normal_prio;
-}
-# define rt_mutex_adjust_pi(p) do { } while (0)
-static inline bool tsk_is_pi_blocked(struct task_struct *tsk)
-{
- return false;
-}
-#endif
-
extern bool yield_to(struct task_struct *p, bool preempt);
extern void set_user_nice(struct task_struct *p, long nice);
extern int task_prio(const struct task_struct *p);
@@ -2703,8 +2654,6 @@ static inline void set_task_cpu(struct task_struct *p, unsigned int cpu)
extern long sched_setaffinity(pid_t pid, const struct cpumask *new_mask);
extern long sched_getaffinity(pid_t pid, struct cpumask *mask);
-extern void normalize_rt_tasks(void);
-
#ifdef CONFIG_CGROUP_SCHED
extern struct task_group root_task_group;
diff --git a/include/linux/sched/rt.h b/include/linux/sched/rt.h
new file mode 100644
index 00000000000..94e19ea28fc
--- /dev/null
+++ b/include/linux/sched/rt.h
@@ -0,0 +1,58 @@
+#ifndef _SCHED_RT_H
+#define _SCHED_RT_H
+
+/*
+ * Priority of a process goes from 0..MAX_PRIO-1, valid RT
+ * priority is 0..MAX_RT_PRIO-1, and SCHED_NORMAL/SCHED_BATCH
+ * tasks are in the range MAX_RT_PRIO..MAX_PRIO-1. Priority
+ * values are inverted: lower p->prio value means higher priority.
+ *
+ * The MAX_USER_RT_PRIO value allows the actual maximum
+ * RT priority to be separate from the value exported to
+ * user-space. This allows kernel threads to set their
+ * priority to a value higher than any user task. Note:
+ * MAX_RT_PRIO must not be smaller than MAX_USER_RT_PRIO.
+ */
+
+#define MAX_USER_RT_PRIO 100
+#define MAX_RT_PRIO MAX_USER_RT_PRIO
+
+#define MAX_PRIO (MAX_RT_PRIO + 40)
+#define DEFAULT_PRIO (MAX_RT_PRIO + 20)
+
+static inline int rt_prio(int prio)
+{
+ if (unlikely(prio < MAX_RT_PRIO))
+ return 1;
+ return 0;
+}
+
+static inline int rt_task(struct task_struct *p)
+{
+ return rt_prio(p->prio);
+}
+
+#ifdef CONFIG_RT_MUTEXES
+extern int rt_mutex_getprio(struct task_struct *p);
+extern void rt_mutex_setprio(struct task_struct *p, int prio);
+extern void rt_mutex_adjust_pi(struct task_struct *p);
+static inline bool tsk_is_pi_blocked(struct task_struct *tsk)
+{
+ return tsk->pi_blocked_on != NULL;
+}
+#else
+static inline int rt_mutex_getprio(struct task_struct *p)
+{
+ return p->normal_prio;
+}
+# define rt_mutex_adjust_pi(p) do { } while (0)
+static inline bool tsk_is_pi_blocked(struct task_struct *tsk)
+{
+ return false;
+}
+#endif
+
+extern void normalize_rt_tasks(void);
+
+
+#endif /* _SCHED_RT_H */
diff --git a/init/init_task.c b/init/init_task.c
index a031ad14c95..ba0a7f362d9 100644
--- a/init/init_task.c
+++ b/init/init_task.c
@@ -3,6 +3,7 @@
#include <linux/mqueue.h>
#include <linux/sched.h>
#include <linux/sched/sysctl.h>
+#include <linux/sched/rt.h>
#include <linux/init.h>
#include <linux/fs.h>
#include <linux/mm.h>
diff --git a/kernel/futex.c b/kernel/futex.c
index 19eb089ca00..9618b6e9fb3 100644
--- a/kernel/futex.c
+++ b/kernel/futex.c
@@ -60,6 +60,7 @@
#include <linux/pid.h>
#include <linux/nsproxy.h>
#include <linux/ptrace.h>
+#include <linux/sched/rt.h>
#include <asm/futex.h>
diff --git a/kernel/hrtimer.c b/kernel/hrtimer.c
index 8a9aa59d0d6..c5dde988c0c 100644
--- a/kernel/hrtimer.c
+++ b/kernel/hrtimer.c
@@ -45,6 +45,7 @@
#include <linux/debugobjects.h>
#include <linux/sched.h>
#include <linux/sched/sysctl.h>
+#include <linux/sched/rt.h>
#include <linux/timer.h>
#include <asm/uaccess.h>
diff --git a/kernel/irq/manage.c b/kernel/irq/manage.c
index e49a288fa47..02115d9592e 100644
--- a/kernel/irq/manage.c
+++ b/kernel/irq/manage.c
@@ -16,6 +16,7 @@
#include <linux/interrupt.h>
#include <linux/slab.h>
#include <linux/sched.h>
+#include <linux/sched/rt.h>
#include <linux/task_work.h>
#include "internals.h"
diff --git a/kernel/mutex.c b/kernel/mutex.c
index a307cc9c952..52f23011b6e 100644
--- a/kernel/mutex.c
+++ b/kernel/mutex.c
@@ -19,6 +19,7 @@
*/
#include <linux/mutex.h>
#include <linux/sched.h>
+#include <linux/sched/rt.h>
#include <linux/export.h>
#include <linux/spinlock.h>
#include <linux/interrupt.h>
diff --git a/kernel/rtmutex-debug.c b/kernel/rtmutex-debug.c
index 16502d3a71c..13b243a323f 100644
--- a/kernel/rtmutex-debug.c
+++ b/kernel/rtmutex-debug.c
@@ -17,6 +17,7 @@
* See rt.c in preempt-rt for proper credits and further information
*/
#include <linux/sched.h>
+#include <linux/sched/rt.h>
#include <linux/delay.h>
#include <linux/export.h>
#include <linux/spinlock.h>
diff --git a/kernel/rtmutex-tester.c b/kernel/rtmutex-tester.c
index 98ec4947546..7890b10084a 100644
--- a/kernel/rtmutex-tester.c
+++ b/kernel/rtmutex-tester.c
@@ -10,6 +10,7 @@
#include <linux/kthread.h>
#include <linux/export.h>
#include <linux/sched.h>
+#include <linux/sched/rt.h>
#include <linux/spinlock.h>
#include <linux/timer.h>
#include <linux/freezer.h>
diff --git a/kernel/rtmutex.c b/kernel/rtmutex.c
index a242e691c99..1e09308bf2a 100644
--- a/kernel/rtmutex.c
+++ b/kernel/rtmutex.c
@@ -13,6 +13,7 @@
#include <linux/spinlock.h>
#include <linux/export.h>
#include <linux/sched.h>
+#include <linux/sched/rt.h>
#include <linux/timer.h>
#include "rtmutex_common.h"
diff --git a/kernel/sched/cpupri.c b/kernel/sched/cpupri.c
index 23aa789c53e..1095e878a46 100644
--- a/kernel/sched/cpupri.c
+++ b/kernel/sched/cpupri.c
@@ -28,6 +28,8 @@
*/
#include <linux/gfp.h>
+#include <linux/sched.h>
+#include <linux/sched/rt.h>
#include "cpupri.h"
/* Convert between a 140 based task->prio, and our 102 based cpupri */
diff --git a/kernel/sched/sched.h b/kernel/sched/sched.h
index ed8de30a040..cc03cfdf469 100644
--- a/kernel/sched/sched.h
+++ b/kernel/sched/sched.h
@@ -1,6 +1,7 @@
#include <linux/sched.h>
#include <linux/sched/sysctl.h>
+#include <linux/sched/rt.h>
#include <linux/mutex.h>
#include <linux/spinlock.h>
#include <linux/stop_machine.h>
diff --git a/kernel/trace/trace.c b/kernel/trace/trace.c
index 3c13e46d7d2..4d2e4afd956 100644
--- a/kernel/trace/trace.c
+++ b/kernel/trace/trace.c
@@ -39,6 +39,7 @@
#include <linux/poll.h>
#include <linux/nmi.h>
#include <linux/fs.h>
+#include <linux/sched/rt.h>
#include "trace.h"
#include "trace_output.h"
diff --git a/kernel/trace/trace_sched_wakeup.c b/kernel/trace/trace_sched_wakeup.c
index 9fe45fcefca..75aa97fbe1a 100644
--- a/kernel/trace/trace_sched_wakeup.c
+++ b/kernel/trace/trace_sched_wakeup.c
@@ -15,8 +15,8 @@
#include <linux/kallsyms.h>
#include <linux/uaccess.h>
#include <linux/ftrace.h>
+#include <linux/sched/rt.h>
#include <trace/events/sched.h>
-
#include "trace.h"
static struct trace_array *wakeup_trace;
diff --git a/kernel/watchdog.c b/kernel/watchdog.c
index 75a2ab3d0b0..27689422aa9 100644
--- a/kernel/watchdog.c
+++ b/kernel/watchdog.c
@@ -23,6 +23,7 @@
#include <linux/module.h>
#include <linux/sysctl.h>
#include <linux/smpboot.h>
+#include <linux/sched/rt.h>
#include <asm/irq_regs.h>
#include <linux/kvm_para.h>
diff --git a/mm/page-writeback.c b/mm/page-writeback.c
index 0713bfbf095..66a0024becd 100644
--- a/mm/page-writeback.c
+++ b/mm/page-writeback.c
@@ -35,6 +35,7 @@
#include <linux/buffer_head.h> /* __set_page_dirty_buffers */
#include <linux/pagevec.h>
#include <linux/timer.h>
+#include <linux/sched/rt.h>
#include <trace/events/writeback.h>
/*
diff --git a/mm/page_alloc.c b/mm/page_alloc.c
index df2022ff0c8..42d18e46f28 100644
--- a/mm/page_alloc.c
+++ b/mm/page_alloc.c
@@ -58,6 +58,7 @@
#include <linux/prefetch.h>
#include <linux/migrate.h>
#include <linux/page-debug-flags.h>
+#include <linux/sched/rt.h>
#include <asm/tlbflush.h>
#include <asm/div64.h>