fix the following 'make includecheck' warning:
include/linux/page_cgroup.h: linux/swap.h is included more than once.
Signed-off-by: Jaswinder Singh Rajput <jaswinderrajput@gmail.com>
Cc: Li Zefan <lizf@cn.fujitsu.com>
Acked-by: Paul Menage <menage@google.com>
#endif
-#ifdef CONFIG_CGROUP_MEM_RES_CTLR_SWAP
#include <linux/swap.h>
+
+#ifdef CONFIG_CGROUP_MEM_RES_CTLR_SWAP
extern unsigned short swap_cgroup_record(swp_entry_t ent, unsigned short id);
extern unsigned short lookup_swap_cgroup(swp_entry_t ent);
extern int swap_cgroup_swapon(int type, unsigned long max_pages);
extern void swap_cgroup_swapoff(int type);
#else
-#include <linux/swap.h>
static inline
unsigned short swap_cgroup_record(swp_entry_t ent, unsigned short id)