X-Git-Url: http://git.cascardo.eti.br/?a=blobdiff_plain;f=include%2Flinux%2Fmm_types.h;h=ca3e517980a0a2d3d58c6566350456f828e4446f;hb=ebb8cb2bae0344ef45cc173cdf5402ec91198abd;hp=c2d75b4fa86c05012a509dd188e2a394d2cb2170;hpb=62a0027839a4a69bc5d2696672242019a6bb6221;p=cascardo%2Flinux.git

diff --git a/include/linux/mm_types.h b/include/linux/mm_types.h
index c2d75b4fa86c..ca3e517980a0 100644
--- a/include/linux/mm_types.h
+++ b/include/linux/mm_types.h
@@ -12,6 +12,7 @@
 #include <linux/cpumask.h>
 #include <linux/uprobes.h>
 #include <linux/page-flags-layout.h>
+#include <linux/workqueue.h>
 #include <asm/page.h>
 #include <asm/mmu.h>
 
@@ -73,9 +74,9 @@ struct page {
 			unsigned long counters;
 #else
 			/*
-			 * Keep _count separate from slub cmpxchg_double data.
-			 * As the rest of the double word is protected by
-			 * slab_lock but _count is not.
+			 * Keep _refcount separate from slub cmpxchg_double
+			 * data.  As the rest of the double word is protected by
+			 * slab_lock but _refcount is not.
 			 */
 			unsigned counters;
 #endif
@@ -97,7 +98,11 @@ struct page {
 					};
 					int units;	/* SLOB */
 				};
-				atomic_t _count;		/* Usage count, see below. */
+				/*
+				 * Usage count, *USE WRAPPER FUNCTION*
+				 * when manual accounting. See page_ref.h
+				 */
+				atomic_t _refcount;
 			};
 			unsigned int active;	/* SLAB */
 		};
@@ -248,7 +253,7 @@ struct page_frag_cache {
 	__u32 offset;
 #endif
 	/* we maintain a pagecount bias, so that we dont dirty cache line
-	 * containing page->_count every time we allocate a fragment.
+	 * containing page->_refcount every time we allocate a fragment.
 	 */
 	unsigned int		pagecnt_bias;
 	bool pfmemalloc;
@@ -509,6 +514,9 @@ struct mm_struct {
 #ifdef CONFIG_HUGETLB_PAGE
 	atomic_long_t hugetlb_usage;
 #endif
+#ifdef CONFIG_MMU
+	struct work_struct async_put_work;
+#endif
 };
 
 static inline void mm_init_cpumask(struct mm_struct *mm)