From: Paul Jackson <pj@sgi.com>
To: Andrew Morton <akpm@osdl.org>
Cc: Rusty Russell <rusty@rustcorp.com.au>, Paul Jackson <pj@sgi.com>,
linux-kernel@vger.kernel.org
Subject: [PATCH] sched hardcode non-smp set_cpus_allowed
Date: Thu, 27 Oct 2005 01:53:47 -0700 (PDT) [thread overview]
Message-ID: <20051027085346.27658.76262.sendpatchset@sam.engr.sgi.com> (raw)
Simplify the UP (1 CPU) implementatin of set_cpus_allowed.
The one CPU is hardcoded to be cpu 0 - so just test for
that bit, and avoid having to pick up the cpu_online_map.
Signed-off-by: Paul Jackson <pj@sgi.com>
---
include/linux/sched.h | 2 +-
1 files changed, 1 insertion(+), 1 deletion(-)
--- 2.6.14-rc5-mm1.orig/include/linux/sched.h 2005-10-27 00:26:36.000000000 -0700
+++ 2.6.14-rc5-mm1/include/linux/sched.h 2005-10-27 00:35:34.000000000 -0700
@@ -945,7 +945,7 @@ extern int set_cpus_allowed(task_t *p, c
#else
static inline int set_cpus_allowed(task_t *p, cpumask_t new_mask)
{
- if (!cpus_intersects(new_mask, cpu_online_map))
+ if (!cpu_isset(0, new_mask))
return -EINVAL;
return 0;
}
--
I won't rest till it's the best ...
Programmer, Linux Scalability
Paul Jackson <pj@sgi.com> 1.650.933.1373, 1.925.600.0401
next reply other threads:[~2005-10-27 8:54 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
2005-10-27 8:53 Paul Jackson [this message]
2005-10-29 1:33 ` [PATCH] sched hardcode non-smp set_cpus_allowed Rusty Russell
2005-10-29 4:25 ` Paul Jackson
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=20051027085346.27658.76262.sendpatchset@sam.engr.sgi.com \
--to=pj@sgi.com \
--cc=akpm@osdl.org \
--cc=linux-kernel@vger.kernel.org \
--cc=rusty@rustcorp.com.au \
/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 a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox