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cgroups: fix cgroup.h comments

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

Signed-off-by: Paul Menage <menage@google.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
This commit is contained in:
Paul Menage 2009-04-02 16:57:22 -07:00 • committed by Linus Torvalds
commit d20a390a0e
1 changed files with 41 additions and 30 deletions
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71
include/linux/cgroup.h
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@ -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;
/*
@ -142,7 +149,7 @@ struct cgroup {
struct list_head sibling; /* my parent's children */
struct list_head children; /* my children */
struct cgroup *parent; /* my parent */
struct cgroup *parent; /* my parent */
struct dentry *dentry; /* cgroup fs entry, RCU protected */
/* Private pointers for each registered subsystem */
@ -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,