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authorJason Gunthorpe <jgg@mellanox.com>2019-02-04 14:53:42 -0700
committerJason Gunthorpe <jgg@mellanox.com>2019-02-04 14:53:42 -0700
commit6a8a2aa62da2fbe51f5449993fd366398048f465 (patch)
tree566c6fcc782eefbca054af8553371d09b9d0734c /include/linux/memory_hotplug.h
parenta163afc88556e099271a7b423295bc5176fcecce (diff)
parent8834f5600cf3c8db365e18a3d5cac2c2780c81e5 (diff)
Merge tag 'v5.0-rc5' into rdma.git for-next
Linux 5.0-rc5 Needed to merge the include/uapi changes so we have an up to date single-tree for these files. Patches already posted are also expected to need this for dependencies.
Diffstat (limited to 'include/linux/memory_hotplug.h')
-rw-r--r--include/linux/memory_hotplug.h18
1 files changed, 10 insertions, 8 deletions
diff --git a/include/linux/memory_hotplug.h b/include/linux/memory_hotplug.h
index 07da5c6c5ba0..368267c1b71b 100644
--- a/include/linux/memory_hotplug.h
+++ b/include/linux/memory_hotplug.h
@@ -21,14 +21,16 @@ struct vmem_altmap;
* walkers which rely on the fully initialized page->flags and others
* should use this rather than pfn_valid && pfn_to_page
*/
-#define pfn_to_online_page(pfn) \
-({ \
- struct page *___page = NULL; \
- unsigned long ___nr = pfn_to_section_nr(pfn); \
- \
- if (___nr < NR_MEM_SECTIONS && online_section_nr(___nr))\
- ___page = pfn_to_page(pfn); \
- ___page; \
+#define pfn_to_online_page(pfn) \
+({ \
+ struct page *___page = NULL; \
+ unsigned long ___pfn = pfn; \
+ unsigned long ___nr = pfn_to_section_nr(___pfn); \
+ \
+ if (___nr < NR_MEM_SECTIONS && online_section_nr(___nr) && \
+ pfn_valid_within(___pfn)) \
+ ___page = pfn_to_page(___pfn); \
+ ___page; \
})
/*