Messages in this thread Patch in this message | | | From | Toshi Kani <> | Subject | [PATCH 2/2] mm: remove_memory: Fix end_pfn setting | Date | Fri, 8 Mar 2013 08:41:41 -0700 |
| |
remove_memory() calls walk_memory_range() with [start_pfn, end_pfn), where end_pfn is exclusive in this range. Therefore, end_pfn needs to be set to the next page of the end address.
Signed-off-by: Toshi Kani <toshi.kani@hp.com> --- mm/memory_hotplug.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/mm/memory_hotplug.c b/mm/memory_hotplug.c index ae7bcba..3e2ab7b 100644 --- a/mm/memory_hotplug.c +++ b/mm/memory_hotplug.c @@ -1801,7 +1801,7 @@ int __ref remove_memory(int nid, u64 start, u64 size) int retry = 1; start_pfn = PFN_DOWN(start); - end_pfn = start_pfn + PFN_DOWN(size); + end_pfn = PFN_UP(start + size - 1); /* * When CONFIG_MEMCG is on, one memory block may be used by other
| |