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From: Alexey Dobriyan <adobriyan@gmail.com>
To: Matthew Wilcox <willy@infradead.org>
Cc: akpm@linux-foundation.org, linux-kernel@vger.kernel.org,
	linux-fsdevel@vger.kernel.org, pmladek@suse.com,
	rostedt@goodmis.org, sergey.senozhatsky@gmail.com,
	andriy.shevchenko@linux.intel.com, linux@rasmusvillemoes.dk
Subject: Re: [PATCH 01/15] sched: make nr_running() return "unsigned int"
Date: Tue, 21 Apr 2020 20:06:34 +0300	[thread overview]
Message-ID: <20200421170634.GA31089@avx2> (raw)
In-Reply-To: <20200420210557.GG5820@bombadil.infradead.org>

On Mon, Apr 20, 2020 at 02:05:57PM -0700, Matthew Wilcox wrote:
> On Mon, Apr 20, 2020 at 11:57:29PM +0300, Alexey Dobriyan wrote:
> > I don't anyone have been crazy enough to spawn 2^32 threads.
> > It'd require absurd amounts of physical memory,  and bump into futex pid
> > limit anyway.
> > 
> > Meanwhile save few bits on REX prefixes and some stack space for upcoming
> > print_integer() stuff.
> > 
> > And remove "extern" from prototypes while I'm at it.
> 
> It seems like there's a few more places to fix in this regard?
> 
> kernel/sched/fair.c:static u64 __sched_period(unsigned long nr_running)
> kernel/sched/sched.h:   unsigned long           dl_nr_running;
> kernel/sched/core.c:unsigned long nr_iowait_cpu(int cpu)
> kernel/sched/core.c:unsigned long nr_iowait(void)
> kernel/sched/loadavg.c: long nr_active, delta = 0;
> kernel/sched/sched.h:   unsigned long           rt_nr_migratory;
> kernel/sched/sched.h:   unsigned long           rt_nr_total;
> kernel/sched/sched.h:   unsigned long           rt_nr_boosted;
> kernel/sched/sched.h:   unsigned long           dl_nr_running;
> kernel/sched/sched.h:   unsigned long           dl_nr_migratory;
> kernel/sched/sched.h:   unsigned long           nr_uninterruptible;

Sure. I changed nr_running() and nr_iowait() because they're in format
strings in /proc as %lu.

      reply	other threads:[~2020-04-21 17:06 UTC|newest]

Thread overview: 26+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2020-04-20 20:57 Alexey Dobriyan
2020-04-20 20:57 ` [PATCH 02/15] sched: make nr_iowait_cpu() " Alexey Dobriyan
2020-04-20 20:57 ` [PATCH 03/15] print_integer: new and improved way of printing integers Alexey Dobriyan
2020-04-20 21:19   ` Andy Shevchenko
2020-04-20 21:27     ` Andy Shevchenko
2020-04-21  1:54       ` Steven Rostedt
2020-04-21 16:49         ` Alexey Dobriyan
2020-04-21 21:08           ` Steven Rostedt
2020-04-23  3:42           ` Sergey Senozhatsky
2020-04-21 16:31     ` Alexey Dobriyan
2020-04-21 16:59   ` Matthew Wilcox
2020-04-20 20:57 ` [PATCH 04/15] print_integer, proc: rewrite /proc/self via print_integer() Alexey Dobriyan
2020-04-20 20:57 ` [PATCH 05/15] print_integer, proc: rewrite /proc/thread-self " Alexey Dobriyan
2020-04-20 20:57 ` [PATCH 06/15] print_integer, proc: rewrite /proc/loadavg " Alexey Dobriyan
2020-04-20 20:57 ` [PATCH 07/15] print_integer, proc: rewrite /proc/stat " Alexey Dobriyan
2020-04-20 20:57 ` [PATCH 08/15] print_integer, proc: rewrite /proc/uptime " Alexey Dobriyan
2020-04-20 20:57 ` [PATCH 09/15] proc: s/p/tsk/ Alexey Dobriyan
2020-04-20 20:57 ` [PATCH 10/15] print_integer, proc: rewrite /proc/*/fd via print_integer() Alexey Dobriyan
2020-04-20 20:57 ` [PATCH 11/15] print_integer, proc: rewrite /proc/*/stat " Alexey Dobriyan
2020-04-20 20:57 ` [PATCH 12/15] print_integer, proc: rewrite /proc/*/statm " Alexey Dobriyan
2020-04-20 20:57 ` [PATCH 13/15] print_integer, printf: rewrite num_to_str() " Alexey Dobriyan
2020-04-20 20:57 ` [PATCH 14/15] print_integer, printf: rewrite the rest of lib/vsprintf.c " Alexey Dobriyan
2020-04-21  2:01   ` Steven Rostedt
2020-04-20 20:57 ` [PATCH 15/15] print_integer, proc: rewrite /proc/meminfo " Alexey Dobriyan
2020-04-20 21:05 ` [PATCH 01/15] sched: make nr_running() return "unsigned int" Matthew Wilcox
2020-04-21 17:06   ` Alexey Dobriyan [this message]

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