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Diffstat (limited to 'include/linux/swap.h')
-rw-r--r--include/linux/swap.h11
1 files changed, 10 insertions, 1 deletions
diff --git a/include/linux/swap.h b/include/linux/swap.h
index c063443d8638..1a8bd05a335e 100644
--- a/include/linux/swap.h
+++ b/include/linux/swap.h
@@ -629,7 +629,6 @@ static inline int mem_cgroup_swappiness(struct mem_cgroup *memcg)
return memcg->swappiness;
}
-
#else
static inline int mem_cgroup_swappiness(struct mem_cgroup *mem)
{
@@ -637,6 +636,16 @@ static inline int mem_cgroup_swappiness(struct mem_cgroup *mem)
}
#endif
+#if defined(CONFIG_SWAP) && defined(CONFIG_MEMCG) && defined(CONFIG_BLK_CGROUP)
+extern void mem_cgroup_throttle_swaprate(struct mem_cgroup *memcg, int node,
+ gfp_t gfp_mask);
+#else
+static inline void mem_cgroup_throttle_swaprate(struct mem_cgroup *memcg,
+ int node, gfp_t gfp_mask)
+{
+}
+#endif
+
#ifdef CONFIG_MEMCG_SWAP
extern void mem_cgroup_swapout(struct page *page, swp_entry_t entry);
extern int mem_cgroup_try_charge_swap(struct page *page, swp_entry_t entry);