#include <linux/highmem.h>
#include <linux/vmalloc.h>
#include <linux/ioport.h>
-#include <linux/cpuset.h>
#include <linux/delay.h>
#include <linux/migrate.h>
#include <linux/page-isolation.h>
+#include <linux/pfn.h>
#include <asm/tlbflush.h>
pgdat->node_start_pfn;
}
-static int __add_zone(struct zone *zone, unsigned long phys_start_pfn)
+static int __meminit __add_zone(struct zone *zone, unsigned long phys_start_pfn)
{
struct pglist_data *pgdat = zone->zone_pgdat;
int nr_pages = PAGES_PER_SECTION;
return 0;
}
-static int __add_section(struct zone *zone, unsigned long phys_start_pfn)
+static int __meminit __add_section(int nid, struct zone *zone,
+ unsigned long phys_start_pfn)
{
int nr_pages = PAGES_PER_SECTION;
int ret;
if (ret < 0)
return ret;
- return register_new_memory(__pfn_to_section(phys_start_pfn));
+ return register_new_memory(nid, __pfn_to_section(phys_start_pfn));
}
#ifdef CONFIG_SPARSEMEM_VMEMMAP
* call this function after deciding the zone to which to
* add the new pages.
*/
-int __add_pages(struct zone *zone, unsigned long phys_start_pfn,
- unsigned long nr_pages)
+int __ref __add_pages(int nid, struct zone *zone, unsigned long phys_start_pfn,
+ unsigned long nr_pages)
{
unsigned long i;
int err = 0;
end_sec = pfn_to_section_nr(phys_start_pfn + nr_pages - 1);
for (i = start_sec; i <= end_sec; i++) {
- err = __add_section(zone, i << PFN_SECTION_SHIFT);
+ err = __add_section(nid, zone, i << PFN_SECTION_SHIFT);
/*
* EEXIST is finally dealt with by ioresource collision
BUG_ON(phys_start_pfn & ~PAGE_SECTION_MASK);
BUG_ON(nr_pages % PAGES_PER_SECTION);
- release_mem_region(phys_start_pfn << PAGE_SHIFT, nr_pages * PAGE_SIZE);
-
sections_to_remove = nr_pages / PAGES_PER_SECTION;
for (i = 0; i < sections_to_remove; i++) {
unsigned long pfn = phys_start_pfn + i*PAGES_PER_SECTION;
+ release_mem_region(pfn << PAGE_SHIFT,
+ PAGES_PER_SECTION << PAGE_SHIFT);
ret = __remove_section(zone, __pfn_to_section(pfn));
if (ret)
break;
}
-int add_memory(int nid, u64 start, u64 size)
+/* we are OK calling __meminit stuff here - we have CONFIG_MEMORY_HOTPLUG */
+int __ref add_memory(int nid, u64 start, u64 size)
{
pg_data_t *pgdat = NULL;
int new_pgdat = 0;
/* we online node here. we can't roll back from here. */
node_set_online(nid);
- cpuset_track_online_nodes();
-
if (new_pgdat) {
ret = register_one_node(nid);
/*
}
static struct page *
-hotremove_migrate_alloc(struct page *page,
- unsigned long private,
- int **x)
+hotremove_migrate_alloc(struct page *page, unsigned long private, int **x)
{
- /* This should be improoooooved!! */
- return alloc_page(GFP_HIGHUSER_PAGECACHE);
+ /* This should be improooooved!! */
+ return alloc_page(GFP_HIGHUSER_MOVABLE);
}
-
#define NR_OFFLINE_AT_ONCE_PAGES (256)
static int
do_migrate_range(unsigned long start_pfn, unsigned long end_pfn)
* We can skip free pages. And we can only deal with pages on
* LRU.
*/
- ret = isolate_lru_page(page, &source);
+ ret = isolate_lru_page(page);
if (!ret) { /* Success */
+ list_add_tail(&page->lru, &source);
move_pages--;
} else {
/* Becasue we don't have big zone->lock. we should
return ret;
}
+
+int remove_memory(u64 start, u64 size)
+{
+ unsigned long start_pfn, end_pfn;
+
+ start_pfn = PFN_DOWN(start);
+ end_pfn = start_pfn + PFN_DOWN(size);
+ return offline_pages(start_pfn, end_pfn, 120 * HZ);
+}
#else
int remove_memory(u64 start, u64 size)
{
return -EINVAL;
}
-EXPORT_SYMBOL_GPL(remove_memory);
#endif /* CONFIG_MEMORY_HOTREMOVE */
+EXPORT_SYMBOL_GPL(remove_memory);