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Message-ID: <1518718222.2464.18.camel@gentoo.org>
Date: Thu, 15 Feb 2018 13:10:22 -0500
From: Christopher Díaz Riveros <chrisadr@...too.org>
To: Randy Dunlap <rdunlap@...radead.org>, mingo@...hat.com,
peterz@...radead.org
Cc: linux-kernel@...r.kernel.org, kernel-janitors@...r.kernel.org
Subject: Re: [PATCH-next] sched/headers: Clean up <linux/sched.h>
El jue, 15-02-2018 a las 09:49 -0800, Randy Dunlap escribió:
> On 02/15/2018 07:43 AM, Christopher Diaz Riveros wrote:
> > Trivial clean up making comments fit in 80 columns and keeping the
> > same comment style.
>
> Why change the /** (indicates kernel-doc notation) to just /* ?
>
> Is scripts/kernel-doc complaining with warnings or errors?
>
If that's the case, then all the /** were correct and it's just me not
being aware of the meaning of /**.
Thanks Randy for clarifying it to me.
That leaves dl_* comments and a couple of oneline comments that may be
better in multiline format. I can prepare a v2 of that if you consider
it necessary.
>
> > Signed-off-by: Christopher Diaz Riveros <chrisadr@...too.org>
> > ---
> > include/linux/sched.h | 54 +++++++++++++++++++++++++++++++++----
> > --------------
> > 1 file changed, 35 insertions(+), 19 deletions(-)
> >
> > diff --git a/include/linux/sched.h b/include/linux/sched.h
> > index b161ef8a902e..c752a0d48944 100644
> > --- a/include/linux/sched.h
> > +++ b/include/linux/sched.h
> > @@ -183,7 +183,7 @@ extern void io_schedule_finish(int token);
> > extern long io_schedule_timeout(long timeout);
> > extern void io_schedule(void);
> >
> > -/**
> > +/*
> > * struct prev_cputime - snapshot of system and user cputime
> > * @utime: time spent in user mode
> > * @stime: time spent in system mode
> > @@ -200,7 +200,7 @@ struct prev_cputime {
> > #endif
> > };
> >
> > -/**
> > +/*
> > * struct task_cputime - collected CPU time counts
> > * @utime: time spent in user mode, in nanoseconds
> > * @stime: time spent in kernel mode, in
> > nanoseconds
> > @@ -437,20 +437,28 @@ struct sched_dl_entity {
> > * during sched_setattr(), they will remain the same until
> > * the next sched_setattr().
> > */
> > - u64 dl_runtime; /*
> > Maximum runtime for each instance */
> > - u64 dl_deadline; /*
> > Relative deadline of each instance */
> > - u64 dl_period; /*
> > Separation of two instances (period) */
> > - u64 dl_bw; /
> > * dl_runtime / dl_period */
> > - u64 dl_density; /*
> > dl_runtime / dl_deadline */
> > + /* Maximum runtime for each instance */
> > + u64 dl_runtime;
> > + /* Relative deadline of each instance */
> > + u64 dl_deadline;
> > + /* Separation of two instances (period) */
> > + u64 dl_period;
> > + /* dl_runtime / dl_period */
> > + u64 dl_bw;
> > + /* dl_runtime / dl_deadline */
> > + u64 dl_density;
> >
> > /*
> > * Actual scheduling parameters. Initialized with the
> > values above,
> > * they are continously updated during task execution.
> > Note that
> > * the remaining runtime could be < 0 in case we are in
> > overrun.
> > */
> > - s64 runtime; /*
> > Remaining runtime for this instance */
> > - u64 deadline; /*
> > Absolute deadline for this instance */
> > - unsigned int flags;
> > /* Specifying the scheduler behaviour */
> > + /* Remaining runtime for this instance */
> > + s64 runtime;
> > + /* Absolute deadline for this instance */
> > + u64 deadline;
> > + /* Specifying the scheduler behaviour */
> > + unsigned int flags;
> >
> > /*
> > * Some bool flags:
> > @@ -666,7 +674,8 @@ struct task_struct {
> > unsigned no_cgroup_migration:1;
> > #endif
> >
> > - unsigned long atomic_flags; /*
> > Flags requiring atomic access. */
> > + /* Flags requiring atomic access. */
> > + unsigned long atomic_flags;
> >
> > struct restart_block restart_block;
> >
> > @@ -678,8 +687,9 @@ struct task_struct {
> > unsigned long stack_canary;
> > #endif
> > /*
> > - * Pointers to the (original) parent process, youngest
> > child, younger sibling,
> > - * older sibling, respectively. (p->father can be
> > replaced with
> > + * Pointers to the (original) parent process, youngest
> > child,
> > + * younger sibling, older sibling, respectively.
> > + * (p->father can be replaced with
> > * p->real_parent->pid)
> > */
> >
> > @@ -743,7 +753,10 @@ struct task_struct {
> > /* Boot based time in nsecs: */
> > u64 real_start_time;
> >
> > - /* MM fault and swap info: this can arguably be seen as
> > either mm-specific or thread-specific: */
> > + /*
> > + * MM fault and swap info: this can arguably be seen as
> > either
> > + * mm-specific or thread-specific:
> > + */
> > unsigned long min_flt;
> > unsigned long maj_flt;
> >
> > @@ -815,7 +828,10 @@ struct task_struct {
> > u32 parent_exec_id;
> > u32 self_exec_id;
> >
> > - /* Protection against (de-)allocation: mm, files, fs, tty,
> > keyrings, mems_allowed, mempolicy: */
> > + /*
> > + * Protection against (de-)allocation: mm, files, fs, tty,
> > + * keyrings, mems_allowed, mempolicy:
> > + */
> > spinlock_t alloc_lock;
> >
> > /* Protection of the PI data structures: */
> > @@ -1176,7 +1192,7 @@ static inline pid_t task_tgid_nr(struct
> > task_struct *tsk)
> > return tsk->tgid;
> > }
> >
> > -/**
> > +/*
> > * pid_alive - check that a task structure is not stale
> > * @p: Task structure to be checked.
> > *
> > @@ -1275,7 +1291,7 @@ static inline char task_state_to_char(struct
> > task_struct *tsk)
> > return task_index_to_char(task_state_index(tsk));
> > }
> >
> > -/**
> > +/*
> > * is_global_init - check if a task structure is init. Since init
> > * is free to have sub-threads we need to check tgid.
> > * @tsk: Task structure to be checked.
> > @@ -1422,7 +1438,7 @@ extern int 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);
> >
> > -/**
> > +/*
> > * task_nice - return the nice value of a given task.
> > * @p: the task in question.
> > *
> > @@ -1442,7 +1458,7 @@ extern int sched_setattr(struct task_struct
> > *, const struct sched_attr *);
> > extern int sched_setattr_nocheck(struct task_struct *, const
> > struct sched_attr *);
> > extern struct task_struct *idle_task(int cpu);
> >
> > -/**
> > +/*
> > * is_idle_task - is the specified task an idle task?
> > * @p: the task in question.
> > *
> >
>
>
--
Christopher Díaz Riveros
Gentoo Linux Developer
GPG Fingerprint: E517 5ECB 8152 98E4 FEBC 2BAA 4DBB D10F 0FDD 2547
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