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authorAshok Raj <ashok.raj@intel.com>2005-10-31 01:59:49 +0300
committerLinus Torvalds <torvalds@g5.osdl.org>2005-10-31 04:37:14 +0300
commitad74557a49d1dea428fb0ad60e75a5aa37610e1d (patch)
tree4240115b224d3b3a323da8aa9325fc3bf4b73b50 /include/linux/cpu.h
parent5d35704028d09a183448daceab5dcb94f21a3645 (diff)
downloadlinux-ad74557a49d1dea428fb0ad60e75a5aa37610e1d.tar.xz
[PATCH] introduce get_cpu_sysdev() to retrieve a sysfs entry for a cpu.
Some modules creating sysfs entries under /sys/devices/system/cpu/cpuX/ need to know the parent sysfs entry to make devices under them. This will just return the sysfs entry for a given cpu. sysfs entries showing under each cpu sysfs can be easily created if such entries can be created by registering a sysfs driver for cpuclass. The issue is when the entry is created the CPU may not be online, hence we would need to defer the creation until the online notification comes. Current users: cache entries for Intel CPU's and cpufreq subsystem. Signed-off-by: Ashok Raj <ashok.raj@intel.com> Signed-off-by: Venkatesh Pallipadi <venkatesh.pallipadi@intel.com> Cc: Dave Jones <davej@codemonkey.org.uk> Cc: Zwane Mwaikambo <zwane@holomorphy.com> Cc: Greg KH <greg@kroah.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
Diffstat (limited to 'include/linux/cpu.h')
-rw-r--r--include/linux/cpu.h1
1 files changed, 1 insertions, 0 deletions
diff --git a/include/linux/cpu.h b/include/linux/cpu.h
index 86980c68234a..1f7b2c097503 100644
--- a/include/linux/cpu.h
+++ b/include/linux/cpu.h
@@ -32,6 +32,7 @@ struct cpu {
};
extern int register_cpu(struct cpu *, int, struct node *);
+extern struct sys_device *get_cpu_sysdev(int cpu);
#ifdef CONFIG_HOTPLUG_CPU
extern void unregister_cpu(struct cpu *, struct node *);
#endif