[PATCH 35/53] sched/core: Move, sort and clean up structure predeclarations

Ingo Molnar
2017-02-08T18:48:53Z

Most of the structure predeclarations were at the head of sched.h, but not
all of them - there were a number of lines spread around sched.h, in
random places.

Move them to the head, and also sort them alphabetically.

Remove unused entries.

Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Mike Galbraith <efault@gmx.de>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: linux-kernel@vger.kernel.org
Signed-off-by: Ingo Molnar <mingo@kernel.org>
---
include/linux/sched.h | 56 +++++++++++++++++++++++---------------------------------
1 file changed, 23 insertions(+), 33 deletions(-)

diff --git a/include/linux/sched.h b/include/linux/sched.h
index 17230885bded..b9be22698a9a 100644
--- a/include/linux/sched.h
+++ b/include/linux/sched.h
@@ -33,24 +33,35 @@

#include <asm/current.h>

-struct sched_attr;
-struct sched_param;
-
-struct futex_pi_state;
-struct robust_list_head;
+/* task_struct member predeclarations: */
+struct audit_context;
+struct autogroup;
+struct backing_dev_info;
struct bio_list;
-struct fs_struct;
-struct perf_event_context;
struct blk_plug;
+struct cfs_rq;
struct filename;
+struct fs_struct;
+struct futex_pi_state;
+struct io_context;
+struct mempolicy;
struct nameidata;
-
-struct signal_struct;
-struct sighand_struct;
-
+struct nsproxy;
+struct perf_event_context;
+struct pid_namespace;
+struct pipe_inode_info;
+struct rcu_node;
+struct reclaim_state;
+struct robust_list_head;
+struct sched_attr;
+struct sched_param;
struct seq_file;
-struct cfs_rq;
+struct sighand_struct;
+struct signal_struct;
+struct task_delay_info;
struct task_group;
+struct task_struct;
+struct uts_namespace;

/*
* Task state bitmask. NOTE! These bits are also
@@ -165,8 +176,6 @@ struct task_group;
/* Task command name length */
#define TASK_COMM_LEN 16

-struct task_struct;
-
extern void sched_init(void);
extern void sched_init_smp(void);

@@ -193,8 +202,6 @@ extern void io_schedule_finish(int token);
extern long io_schedule_timeout(long timeout);
extern void io_schedule(void);

-struct nsproxy;
-
/**
* struct prev_cputime - snaphsot of system and user cputime
* @utime: time spent in user mode
@@ -297,10 +304,6 @@ struct thread_group_cputimer {
};

#include <linux/rwsem.h>
-struct autogroup;
-
-struct backing_dev_info;
-struct reclaim_state;

#ifdef CONFIG_SCHED_INFO
struct sched_info {
@@ -314,8 +317,6 @@ struct sched_info {
};
#endif /* CONFIG_SCHED_INFO */

-struct task_delay_info;
-
static inline int sched_info_on(void)
{
#ifdef CONFIG_SCHEDSTATS
@@ -342,20 +343,12 @@ void force_schedstat_enabled(void);
# define SCHED_FIXEDPOINT_SHIFT 10
# define SCHED_FIXEDPOINT_SCALE (1L << SCHED_FIXEDPOINT_SHIFT)

-struct io_context; /* See blkdev.h */
-
-
#ifdef ARCH_HAS_PREFETCH_SWITCH_STACK
extern void prefetch_stack(struct task_struct *t);
#else
static inline void prefetch_stack(struct task_struct *t) { }
#endif

-struct audit_context; /* See audit.c */
-struct mempolicy;
-struct pipe_inode_info;
-struct uts_namespace;
-
struct load_weight {
unsigned long weight;
u32 inv_weight;
@@ -564,7 +557,6 @@ union rcu_special {
} b; /* Bits. */
u32 s; /* Set of bits. */
};
-struct rcu_node;

enum perf_event_task_context {
perf_invalid_context = -1,
@@ -1121,8 +1113,6 @@ static inline struct pid *task_session(struct task_struct *task)
return task->group_leader->pids[PIDTYPE_SID].pid;
}

-struct pid_namespace;
-
/*
* the helpers to get the task's different pids as they are seen
* from various namespaces
--
2.7.4