X-Git-Url: http://ftp.safe.ca/?a=blobdiff_plain;f=mm%2Fmemory_hotplug.c;h=be211a582930d87bba2f959e2729399e364f6ae9;hb=56de7263fcf3eb10c8dcdf8d59a9cec831795f3f;hp=2047465cd27cf5b1829979057459857184a42b2e;hpb=6ad696d2cf535772dff659298ec7e7260e344595;p=safe%2Fjmp%2Flinux-2.6

diff --git a/mm/memory_hotplug.c b/mm/memory_hotplug.c
index 2047465..be211a5 100644
--- a/mm/memory_hotplug.c
+++ b/mm/memory_hotplug.c
@@ -27,6 +27,8 @@
 #include <linux/page-isolation.h>
 #include <linux/pfn.h>
 #include <linux/suspend.h>
+#include <linux/mm_inline.h>
+#include <linux/firmware-map.h>
 
 #include <asm/tlbflush.h>
 
@@ -71,7 +73,9 @@ static void get_page_bootmem(unsigned long info,  struct page *page, int type)
 	atomic_inc(&page->_count);
 }
 
-void put_page_bootmem(struct page *page)
+/* reference to __meminit __free_pages_bootmem is valid
+ * so use __ref to tell modpost not to generate a warning */
+void __ref put_page_bootmem(struct page *page)
 {
 	int type;
 
@@ -520,6 +524,9 @@ int __ref add_memory(int nid, u64 start, u64 size)
 		BUG_ON(ret);
 	}
 
+	/* create new memmap entry */
+	firmware_map_add_hotplug(start, start + size, "System RAM");
+
 	goto out;
 
 error:
@@ -672,15 +679,18 @@ do_migrate_range(unsigned long start_pfn, unsigned long end_pfn)
 		if (!ret) { /* Success */
 			list_add_tail(&page->lru, &source);
 			move_pages--;
+			inc_zone_page_state(page, NR_ISOLATED_ANON +
+					    page_is_file_cache(page));
+
 		} else {
 			/* Becasue we don't have big zone->lock. we should
 			   check this again here. */
 			if (page_count(page))
 				not_managed++;
 #ifdef CONFIG_DEBUG_VM
-			printk(KERN_INFO "removing from LRU failed"
-					 " %lx/%d/%lx\n",
-				pfn, page_count(page), page->flags);
+			printk(KERN_ALERT "removing pfn %lx from LRU failed\n",
+			       pfn);
+			dump_page(page);
 #endif
 		}
 	}
@@ -694,7 +704,7 @@ do_migrate_range(unsigned long start_pfn, unsigned long end_pfn)
 	if (list_empty(&source))
 		goto out;
 	/* this function returns # of failed pages */
-	ret = migrate_pages(&source, hotremove_migrate_alloc, 0);
+	ret = migrate_pages(&source, hotremove_migrate_alloc, 0, 1);
 
 out:
 	return ret;
@@ -747,7 +757,7 @@ check_pages_isolated(unsigned long start_pfn, unsigned long end_pfn)
 	return offlined;
 }
 
-int offline_pages(unsigned long start_pfn,
+static int offline_pages(unsigned long start_pfn,
 		  unsigned long end_pfn, unsigned long timeout)
 {
 	unsigned long pfn, nr_pages, expire;
@@ -849,6 +859,10 @@ repeat:
 
 	setup_per_zone_wmarks();
 	calculate_zone_inactive_ratio(zone);
+	if (!node_present_pages(node)) {
+		node_clear_state(node, N_HIGH_MEMORY);
+		kswapd_stop(node);
+	}
 
 	vm_total_pages = nr_free_pagecache_pages();
 	writeback_set_ratelimit();