Commit a2f3aa02576632cdb ("[PATCH] Fix sparsemem on Cell") fixed an oops
experienced on the Cell architecture when init-time functions, early_*(),
are called at runtime by introducing an 'enum memmap_context' parameter
to memmap_init_zone() and init_currently_empty_zone(). This parameter is
intended to be used to tell whether the call of these two functions is
being made on behalf of a hotplug event, or happening at boot-time.
However, init_currently_empty_zone() does not use this parameter at all,
so remove it.
Signed-off-by: Yaowei Bai <bywxiaobai@xxxxxxx>
---
include/linux/mmzone.h | 3 +--
mm/memory_hotplug.c | 4 ++--
mm/page_alloc.c | 6 ++----
3 files changed, 5 insertions(+), 8 deletions(-)
diff --git a/include/linux/mmzone.h b/include/linux/mmzone.h
index 754c259..4fdb8e3 100644
--- a/include/linux/mmzone.h
+++ b/include/linux/mmzone.h
@@ -808,8 +808,7 @@ enum memmap_context {
MEMMAP_HOTPLUG,
};
extern int init_currently_empty_zone(struct zone *zone, unsigned long start_pfn,
- unsigned long size,
- enum memmap_context context);
+ unsigned long size);
extern void lruvec_init(struct lruvec *lruvec);
diff --git a/mm/memory_hotplug.c b/mm/memory_hotplug.c
index 6da82bc..7ae58a5 100644
--- a/mm/memory_hotplug.c
+++ b/mm/memory_hotplug.c
@@ -339,8 +339,8 @@ static int __ref ensure_zone_is_initialized(struct zone *zone,
unsigned long start_pfn, unsigned long num_pages)
{
if (!zone_is_initialized(zone))
- return init_currently_empty_zone(zone, start_pfn, num_pages,
- MEMMAP_HOTPLUG);
+ return init_currently_empty_zone(zone, start_pfn, num_pages);
+
return 0;
}
diff --git a/mm/page_alloc.c b/mm/page_alloc.c
index 5b5240b..c562d13 100644
--- a/mm/page_alloc.c
+++ b/mm/page_alloc.c
@@ -4875,8 +4875,7 @@ static __meminit void zone_pcp_init(struct zone *zone)
int __meminit init_currently_empty_zone(struct zone *zone,
unsigned long zone_start_pfn,
- unsigned long size,
- enum memmap_context context)
+ unsigned long size)
{
struct pglist_data *pgdat = zone->zone_pgdat;
int ret;
@@ -5389,8 +5388,7 @@ static void __paginginit free_area_init_core(struct pglist_data *pgdat,
set_pageblock_order();
setup_usemap(pgdat, zone, zone_start_pfn, size);
- ret = init_currently_empty_zone(zone, zone_start_pfn,
- size, MEMMAP_EARLY);
+ ret = init_currently_empty_zone(zone, zone_start_pfn, size);
BUG_ON(ret);
memmap_init(size, nid, j, zone_start_pfn);
zone_start_pfn += size;
--
1.9.1
--
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