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| author |   Robin Holt <holt@sgi.com> | 2010-09-29 14:00:54 -0500 |
|---|---|---|
| committer |   Greg Kroah-Hartman <gregkh@suse.de> | 2010-10-22 10:16:44 -0700 |
| commit | c25d1dfbd403209025df41a737f82ce8f43d93f5 (patch) | |
| tree | 35110a432101ff146bae3656137d9ba6f37b38fd /include/linux/kobject.h | |
| parent | driver core: fix build for CONFIG_BLOCK not enabled (diff) | |
| download | linux-dev-c25d1dfbd403209025df41a737f82ce8f43d93f5.tar.xz linux-dev-c25d1dfbd403209025df41a737f82ce8f43d93f5.zip | |
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.h | 2 |
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; |