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Commit d20a390a authored by Paul Menage's avatar Paul Menage Committed by Linus Torvalds
Browse files

cgroups: fix cgroup.h comments 



Fix the style of some multi-line comments in cgroup.h to match
Documentation/CodingStyle

Signed-off-by: default avatarPaul Menage <menage@google.com>
Signed-off-by: default avatarAndrew Morton <akpm@linux-foundation.org>
Signed-off-by: default avatarLinus Torvalds <torvalds@linux-foundation.org>
parent 45dad7bd

include/linux/cgroup.h

+41 −30
Original line number Diff line number Diff line
@@ -47,14 +47,18 @@ enum cgroup_subsys_id { 


/* Per-subsystem/per-cgroup state maintained by the system. */

struct cgroup_subsys_state {

	/* The cgroup that this subsystem is attached to. Useful

	/*

	 * The cgroup that this subsystem is attached to. Useful

	 * for subsystems that want to know about the cgroup

	 * hierarchy structure */

	 * hierarchy structure

	 */

	struct cgroup *cgroup;



	/* State maintained by the cgroup system to allow subsystems

	/*

	 * State maintained by the cgroup system to allow subsystems

	 * to be "busy". Should be accessed via css_get(),

	 * css_tryget() and and css_put(). */

	 * css_tryget() and and css_put().

	 */



	atomic_t refcnt;
@@ -120,8 +124,10 @@ static inline void css_put(struct cgroup_subsys_state *css) 
enum {

	/* Control Group is dead */

	CGRP_REMOVED,

	/* Control Group has previously had a child cgroup or a task,

	 * but no longer (only if CGRP_NOTIFY_ON_RELEASE is set) */

	/*

	 * Control Group has previously had a child cgroup or a task,

	 * but no longer (only if CGRP_NOTIFY_ON_RELEASE is set)

	 */

	CGRP_RELEASABLE,

	/* Control Group requires release notifications to userspace */

	CGRP_NOTIFY_ON_RELEASE,
@@ -130,9 +136,10 @@ enum { 
struct cgroup {

	unsigned long flags;		/* "unsigned long" so bitops work */



	/* count users of this cgroup. >0 means busy, but doesn't

	 * necessarily indicate the number of tasks in the

	 * cgroup */

	/*

	 * count users of this cgroup. >0 means busy, but doesn't

	 * necessarily indicate the number of tasks in the cgroup

	 */

	atomic_t count;



	/*
@@ -177,11 +184,12 @@ struct cgroup { 
	struct rcu_head rcu_head;

};



/* A css_set is a structure holding pointers to a set of

/*

 * A css_set is a structure holding pointers to a set of

 * cgroup_subsys_state objects. This saves space in the task struct

 * object and speeds up fork()/exit(), since a single inc/dec and a

 * list_add()/del() can bump the reference count on the entire

 * cgroup set for a task.

 * list_add()/del() can bump the reference count on the entire cgroup

 * set for a task.

 */



struct css_set {
@@ -226,13 +234,8 @@ struct cgroup_map_cb { 
	void *state;

};



/* struct cftype:

 *

 * The files in the cgroup filesystem mostly have a very simple read/write

 * handling, some common function will take care of it. Nevertheless some cases

 * (read tasks) are special and therefore I define this structure for every

 * kind of file.

 *

/*

 * struct cftype: handler definitions for cgroup control files

 *

 * When reading/writing to a file:

 *	- the cgroup to use is file->f_dentry->d_parent->d_fsdata
@@ -241,8 +244,10 @@ struct cgroup_map_cb { 


#define MAX_CFTYPE_NAME 64

struct cftype {

	/* By convention, the name should begin with the name of the

	 * subsystem, followed by a period */

	/*

	 * By convention, the name should begin with the name of the

	 * subsystem, followed by a period

	 */

	char name[MAX_CFTYPE_NAME];

	int private;
@@ -321,13 +326,17 @@ struct cgroup_scanner { 
	struct ptr_heap *heap;

};



/* Add a new file to the given cgroup directory. Should only be

 * called by subsystems from within a populate() method */

/*

 * Add a new file to the given cgroup directory. Should only be

 * called by subsystems from within a populate() method

 */

int cgroup_add_file(struct cgroup *cgrp, struct cgroup_subsys *subsys,

		       const struct cftype *cft);



/* Add a set of new files to the given cgroup directory. Should

 * only be called by subsystems from within a populate() method */

/*

 * Add a set of new files to the given cgroup directory. Should

 * only be called by subsystems from within a populate() method

 */

int cgroup_add_files(struct cgroup *cgrp,

			struct cgroup_subsys *subsys,

			const struct cftype cft[],
@@ -419,7 +428,8 @@ struct cgroup_iter { 
	struct list_head *task;

};



/* To iterate across the tasks in a cgroup:

/*

 * To iterate across the tasks in a cgroup:

 *

 * 1) call cgroup_iter_start to intialize an iterator

 *
@@ -428,9 +438,10 @@ struct cgroup_iter { 
 *

 * 3) call cgroup_iter_end() to destroy the iterator.

 *

 * Or, call cgroup_scan_tasks() to iterate through every task in a cpuset.

 *    - cgroup_scan_tasks() holds the css_set_lock when calling the test_task()

 *      callback, but not while calling the process_task() callback.

 * Or, call cgroup_scan_tasks() to iterate through every task in a

 * cgroup - cgroup_scan_tasks() holds the css_set_lock when calling

 * the test_task() callback, but not while calling the process_task()

 * callback.

 */

void cgroup_iter_start(struct cgroup *cgrp, struct cgroup_iter *it);

struct task_struct *cgroup_iter_next(struct cgroup *cgrp,