mm: remove reference to PG_buddy

PG_buddy doesn't exist any more.  It's called PageBuddy now.

Link: http://lkml.kernel.org/r/20171220155552.15884-9-willy@infradead.org
Signed-off-by: Matthew Wilcox <mawilcox@microsoft.com>
Acked-by: Kirill A. Shutemov <kirill.shutemov@linux.intel.com>
Acked-by: Michal Hocko <mhocko@suse.com>
Acked-by: Christoph Lameter <cl@linux.com>
Cc: Randy Dunlap <rdunlap@infradead.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

diff --git a/include/linux/mm_types.h b/include/linux/mm_types.h
index 3f1fae8fb1403a7aa0ba055c3f54cd9116b3d69f..fd1af6b9591d55781f5c06b4d02cf75b4b274ae5 100644 (file)
--- a/include/linux/mm_types.h
+++ b/include/linux/mm_types.h
@@ -175,13 +175,13 @@ struct page {
        };
 
        union {
-               unsigned long private;          /* Mapping-private opaque data:
-                                                * usually used for buffer_heads
-                                                * if PagePrivate set; used for
-                                                * swp_entry_t if PageSwapCache;
-                                                * indicates order in the buddy
-                                                * system if PG_buddy is set.
-                                                */
+               /*
+                * Mapping-private opaque data:
+                * Usually used for buffer_heads if PagePrivate
+                * Used for swp_entry_t if PageSwapCache
+                * Indicates order in the buddy system if PageBuddy
+                */
+               unsigned long private;
 #if USE_SPLIT_PTE_PTLOCKS
 #if ALLOC_SPLIT_PTLOCKS
                spinlock_t *ptl;