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authorRobin Holt <holt@sgi.com>2010-09-29 23:00:54 +0400
committerGreg Kroah-Hartman <gregkh@suse.de>2010-10-22 21:16:44 +0400
commitc25d1dfbd403209025df41a737f82ce8f43d93f5 (patch)
tree35110a432101ff146bae3656137d9ba6f37b38fd /include/linux/kobject.h
parentead454feb6cbfe0fa6a1eeb30aa9abc338dacf62 (diff)
downloadlinux-c25d1dfbd403209025df41a737f82ce8f43d93f5.tar.xz
kobject: Introduce kset_find_obj_hinted.
One call chain getting to kset_find_obj is: link_mem_sections() find_mem_section() kset_find_obj() This is done during boot. The memory sections were added in a linearly increasing order and link_mem_sections tends to utilize them in that same linear order. Introduce a kset_find_obj_hinted which is passed the result of the previous kset_find_obj which it uses for a quick "is the next object our desired object" check before falling back to the old behavior. Signed-off-by: Robin Holt <holt@sgi.com> To: Robert P. J. Day <rpjday@crashcourse.ca> Reviewed-by: KAMEZAWA Hiroyuki <kamezawa.hiroyu@jp.fujitsu.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Diffstat (limited to 'include/linux/kobject.h')
-rw-r--r--include/linux/kobject.h2
1 files changed, 2 insertions, 0 deletions
diff --git a/include/linux/kobject.h b/include/linux/kobject.h
index 7950a37a7146..8f6d12151048 100644
--- a/include/linux/kobject.h
+++ b/include/linux/kobject.h
@@ -191,6 +191,8 @@ static inline struct kobj_type *get_ktype(struct kobject *kobj)
}
extern struct kobject *kset_find_obj(struct kset *, const char *);
+extern struct kobject *kset_find_obj_hinted(struct kset *, const char *,
+ struct kobject *);
/* The global /sys/kernel/ kobject for people to chain off of */
extern struct kobject *kernel_kobj;