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authorAnton Vorontsov <anton.vorontsov@linaro.org>2012-12-11 22:15:57 -0800
committerAnton Vorontsov <anton.vorontsov@linaro.org>2012-12-11 22:15:57 -0800
commit76d8a23b127020472207b281427d3e9f4f1227e4 (patch)
treee14d7063d96d850fb259115d6fb08cbeb98ccf88 /include/linux/memory_hotplug.h
parenteba3b670a9166a91be5a11fe33290dca6b9457a2 (diff)
parent1ebaf4f4e6912199f8a4e30ba3ab55da2b71bcdf (diff)
Merge git://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux
The merge is merely to fix conflicts before sending a pull request. Conflicts: drivers/power/ab8500_btemp.c drivers/power/ab8500_charger.c drivers/power/ab8500_fg.c drivers/power/abx500_chargalg.c drivers/power/max8925_power.c Signed-off-by: Anton Vorontsov <anton.vorontsov@linaro.org>
Diffstat (limited to 'include/linux/memory_hotplug.h')
-rw-r--r--include/linux/memory_hotplug.h13
1 files changed, 12 insertions, 1 deletions
diff --git a/include/linux/memory_hotplug.h b/include/linux/memory_hotplug.h
index 95573ec4ee6c..4a45c4e50025 100644
--- a/include/linux/memory_hotplug.h
+++ b/include/linux/memory_hotplug.h
@@ -26,6 +26,13 @@ enum {
MEMORY_HOTPLUG_MAX_BOOTMEM_TYPE = NODE_INFO,
};
+/* Types for control the zone type of onlined memory */
+enum {
+ ONLINE_KEEP,
+ ONLINE_KERNEL,
+ ONLINE_MOVABLE,
+};
+
/*
* pgdat resizing functions
*/
@@ -46,6 +53,10 @@ void pgdat_resize_init(struct pglist_data *pgdat)
}
/*
* Zone resizing functions
+ *
+ * Note: any attempt to resize a zone should has pgdat_resize_lock()
+ * zone_span_writelock() both held. This ensure the size of a zone
+ * can't be changed while pgdat_resize_lock() held.
*/
static inline unsigned zone_span_seqbegin(struct zone *zone)
{
@@ -71,7 +82,7 @@ extern int zone_grow_free_lists(struct zone *zone, unsigned long new_nr_pages);
extern int zone_grow_waitqueues(struct zone *zone, unsigned long nr_pages);
extern int add_one_highpage(struct page *page, int pfn, int bad_ppro);
/* VM interface that may be used by firmware interface */
-extern int online_pages(unsigned long, unsigned long);
+extern int online_pages(unsigned long, unsigned long, int);
extern void __offline_isolated_pages(unsigned long, unsigned long);
typedef void (*online_page_callback_t)(struct page *page);