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.
prev parent 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 [PATCH 01/15] sched: make nr_running() return "unsigned int" 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]
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=20200421170634.GA31089@avx2 \
--to=adobriyan@gmail.com \
--cc=akpm@linux-foundation.org \
--cc=andriy.shevchenko@linux.intel.com \
--cc=linux-fsdevel@vger.kernel.org \
--cc=linux-kernel@vger.kernel.org \
--cc=linux@rasmusvillemoes.dk \
--cc=pmladek@suse.com \
--cc=rostedt@goodmis.org \
--cc=sergey.senozhatsky@gmail.com \
--cc=willy@infradead.org \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is an external index of several public inboxes,
see mirroring instructions on how to clone and mirror
all data and code used by this external index.