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-rw-r--r--include/linux/swap.h9
1 files changed, 9 insertions, 0 deletions
diff --git a/include/linux/swap.h b/include/linux/swap.h
index a2602a8207a6..1f59d9340c4d 100644
--- a/include/linux/swap.h
+++ b/include/linux/swap.h
@@ -355,6 +355,7 @@ static inline void disable_swap_token(void)
#ifdef CONFIG_CGROUP_MEM_RES_CTLR
extern void
mem_cgroup_uncharge_swapcache(struct page *page, swp_entry_t ent, bool swapout);
+extern int mem_cgroup_count_swap_user(swp_entry_t ent, struct page **pagep);
#else
static inline void
mem_cgroup_uncharge_swapcache(struct page *page, swp_entry_t ent, bool swapout)
@@ -485,6 +486,14 @@ mem_cgroup_uncharge_swapcache(struct page *page, swp_entry_t ent)
{
}
+#ifdef CONFIG_CGROUP_MEM_RES_CTLR
+static inline int
+mem_cgroup_count_swap_user(swp_entry_t ent, struct page **pagep)
+{
+ return 0;
+}
+#endif
+
#endif /* CONFIG_SWAP */
#endif /* __KERNEL__*/
#endif /* _LINUX_SWAP_H */