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Diffstat (limited to 'include/linux/rmap-locking.h')
-rw-r--r--include/linux/rmap-locking.h14
1 files changed, 14 insertions, 0 deletions
diff --git a/include/linux/rmap-locking.h b/include/linux/rmap-locking.h
index 302a58f54ca3..51f6697f3794 100644
--- a/include/linux/rmap-locking.h
+++ b/include/linux/rmap-locking.h
@@ -5,6 +5,11 @@
* pte chain.
*/
+#include <linux/slab.h>
+
+struct pte_chain;
+extern kmem_cache_t *pte_chain_cache;
+
static inline void pte_chain_lock(struct page *page)
{
/*
@@ -31,3 +36,12 @@ static inline void pte_chain_unlock(struct page *page)
#endif
preempt_enable();
}
+
+struct pte_chain *pte_chain_alloc(int gfp_flags);
+void __pte_chain_free(struct pte_chain *pte_chain);
+
+static inline void pte_chain_free(struct pte_chain *pte_chain)
+{
+ if (pte_chain)
+ __pte_chain_free(pte_chain);
+}