Commit 98383031 authored by Robin Holt's avatar Robin Holt Committed by Greg Kroah-Hartman

driver core: Introduce find_memory_block_hinted which utilizes kset_find_obj_hinted.

Introduce a find_memory_block_hinted() which utilizes the
recently added kset_find_obj_hinted().
Signed-off-by: default avatarRobin Holt <holt@sgi.com>
To: Dave Hansen <haveblue@us.ibm.com>
To: Matt Tolentino <matthew.e.tolentino@intel.com>
Reviewed-by: default avatarKAMEZAWA Hiroyuki <kamezawa.hiroyu@jp.fujitsu.com>
Signed-off-by: default avatarGreg Kroah-Hartman <gregkh@suse.de>
parent c25d1dfb
......@@ -468,28 +468,23 @@ static int add_memory_block(int nid, struct mem_section *section,
return ret;
}
/*
* For now, we have a linear search to go find the appropriate
* memory_block corresponding to a particular phys_index. If
* this gets to be a real problem, we can always use a radix
* tree or something here.
*
* This could be made generic for all sysdev classes.
*/
struct memory_block *find_memory_block(struct mem_section *section)
struct memory_block *find_memory_block_hinted(struct mem_section *section,
struct memory_block *hint)
{
struct kobject *kobj;
struct sys_device *sysdev;
struct memory_block *mem;
char name[sizeof(MEMORY_CLASS_NAME) + 9 + 1];
kobj = hint ? &hint->sysdev.kobj : NULL;
/*
* This only works because we know that section == sysdev->id
* slightly redundant with sysdev_register()
*/
sprintf(&name[0], "%s%d", MEMORY_CLASS_NAME, __section_nr(section));
kobj = kset_find_obj(&memory_sysdev_class.kset, name);
kobj = kset_find_obj_hinted(&memory_sysdev_class.kset, name, kobj);
if (!kobj)
return NULL;
......@@ -499,6 +494,19 @@ struct memory_block *find_memory_block(struct mem_section *section)
return mem;
}
/*
* For now, we have a linear search to go find the appropriate
* memory_block corresponding to a particular phys_index. If
* this gets to be a real problem, we can always use a radix
* tree or something here.
*
* This could be made generic for all sysdev classes.
*/
struct memory_block *find_memory_block(struct mem_section *section)
{
return find_memory_block_hinted(section, NULL);
}
int remove_memory_block(unsigned long node_id, struct mem_section *section,
int phys_device)
{
......
......@@ -113,6 +113,8 @@ extern int memory_dev_init(void);
extern int remove_memory_block(unsigned long, struct mem_section *, int);
extern int memory_notify(unsigned long val, void *v);
extern int memory_isolate_notify(unsigned long val, void *v);
extern struct memory_block *find_memory_block_hinted(struct mem_section *,
struct memory_block *);
extern struct memory_block *find_memory_block(struct mem_section *);
#define CONFIG_MEM_BLOCK_SIZE (PAGES_PER_SECTION<<PAGE_SHIFT)
enum mem_add_context { BOOT, HOTPLUG };
......
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