[PATCH 3/5] mm, memory_hotplug: drop pointless block alignment checks from __offline_pages

Michal Hocko
2018-11-16T08:30:40Z

From: Michal Hocko <mhocko@suse.com>

This function is never called from a context which would provide
misaligned pfn range so drop the pointless check.

Signed-off-by: Michal Hocko <mhocko@suse.com>
---
mm/memory_hotplug.c | 6 ------
1 file changed, 6 deletions(-)

diff --git a/mm/memory_hotplug.c b/mm/memory_hotplug.c
index 2b2b3ccbbfb5..a92b1b8f6218 100644
--- a/mm/memory_hotplug.c
+++ b/mm/memory_hotplug.c
@@ -1554,12 +1554,6 @@ static int __ref __offline_pages(unsigned long start_pfn,
struct zone *zone;
struct memory_notify arg;

- /* at least, alignment against pageblock is necessary */
- if (!IS_ALIGNED(start_pfn, pageblock_nr_pages))
- return -EINVAL;
- if (!IS_ALIGNED(end_pfn, pageblock_nr_pages))
- return -EINVAL;
-
mem_hotplug_begin();

/* This makes hotplug much easier...and readable.
--
2.19.1