linux-kernel - [PATCH 0/3] x86: add cpus

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Message-Id: <20080408184301.651388000@polaris-admin.engr.sgi.com>
Date:	Tue, 08 Apr 2008 11:43:01 -0700
From:	Mike Travis <travis@....com>
To:	Ingo Molnar <mingo@...e.hu>
Cc:	Bert Wesarg <bert.wesarg@...glemail.com>,
	Paul Jackson <pj@....com>,
	Thomas Gleixner <tglx@...utronix.de>,
	"H. Peter Anvin" <hpa@...or.com>,
	Andrew Morton <akpm@...ux-foundation.org>,
	linux-kernel@...r.kernel.org
Subject: [PATCH 0/3] x86: add cpus_scnprintf function v3


  * Add cpu_sysdev_class functions to display the

	cpu_online_map
	cpu_present_map
	cpu_possible_map
	cpu_system_map

  * Cleanup usages of cpumask_scprintf in the following files and add
    another interface to use cpulist_scnprintf where appropriate.

	arch/x86/kernel/cpu/intel_cacheinfo.c
	drivers/base/cpu.c
	drivers/base/node.c
	drivers/base/topology.c
	drivers/pci/pci-sysfs.c
	drivers/pci/probe.c
	include/linux/sysdev.h
	kernel/cpuset.c
	kernel/sched_stats.h
	kernel/trace/trace.c

  - The new interface is generally the same base name but uses 'list'
    instead of 'map'.  For example, there is now:

	# cat /sys/devices/system/node/node0/cpumap
	00000000,00000000,00000000,00000000,00000000,00000000,00000000,00000000,\
	00000000,00000000,00000000,00000000,00000000,00000000,00000000,00000000,\
	00000000,00000000,00000000,00000000,00000000,00000000,00000000,00000000,\
	00000000,00000000,00000000,00000000,00000000,00000000,00000000,00000000,\
	00000000,00000000,00000000,00000000,00000000,00000000,00000000,00000000,\
	00000000,00000000,00000000,00000000,00000000,00000000,00000000,00000000,\
	00000000,00000000,00000000,00000000,00000000,00000000,00000000,00000000,\
	00000000,00000000,00000000,00000000,00000000,00000000,00000000,00000000,\
	00000000,00000000,00000000,00000000,00000000,00000000,00000000,00000000,\
	00000000,00000000,00000000,00000000,00000000,00000000,00000000,00000000,\
	00000000,00000000,00000000,00000000,00000000,00000000,00000000,00000000,\
	00000000,00000000,00000000,00000000,00000000,00000000,00000000,00000000,\
	00000000,00000000,00000000,00000000,00000000,00000000,00000000,00000000,\
	00000000,00000000,00000000,00000000,00000000,00000000,00000000,00000000,\
	00000000,00000000,00000000,00000000,00000000,00000000,00000000,00000000,\
	00000000,00000000,00000000,00000000,00000000,00000000,00000000,00000003

  - And the new interface:

	# cat /sys/devices/system/node/node0/cpulist
	0-1

Based on:
	git://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux-2.6.git
    +   x86/latest          .../x86/linux-2.6-x86.git
    +   sched-devel/latest  .../mingo/linux-2.6-sched-devel.git

Signed-off-by: Mike Travis <travis@....com>
---
v3:
    Removed cpus_scnprintf() and all references.

v2:
    Renamed cpuset_scnprintf() to cpus_scnprintf to avoid confusion with
    "cpusets", and changed the other names to match.

    Added a sentinel character for the cpulist type output so scripts can
    be written to handle both cases.

    Added warning in the Documentation/sysctl/kernel.txt that changing this
    option may break scripts and programs that rely on the current format.
    Also provided example on how to process the output.

    Added information to Documentation/scheduler/sched-stats.txt about
    change in version number because of new cpus_scnprintf function.

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