[PATCH] fix build error when no swap

[Yoichi Yuasa]

When CONFIG_SWAP is not set, I got the following error.

In file included from include/asm/tlb.h:21,
                 from fs/exec.c:55:
		 include/asm-generic/tlb.h: In function 'tlb_flush_mmu':
		 include/asm-generic/tlb.h:76: error: implicit declaration of function 'release_pages'
		 include/asm-generic/tlb.h: In function 'tlb_remove_page':
		 include/asm-generic/tlb.h:105: error: implicit declaration of function 'page_cache_release'
		 make[1]: *** [fs/exec.o] Error 1

Signed-off-by: Yoichi Yuasa <yoichi_yuasa@xxxxxxxxxxxxxx>

diff -pruN -X /home/yuasa/Memo/dontdiff linux-orig/include/linux/swap.h linux/include/linux/swap.h
--- linux-orig/include/linux/swap.h	2008-07-26 17:27:22.651869820 +0900
+++ linux/include/linux/swap.h	2008-07-26 18:36:46.406531575 +0900
@@ -7,6 +7,7 @@
 #include <linux/list.h>
 #include <linux/memcontrol.h>
 #include <linux/sched.h>
+#include <linux/pagemap.h>
 
 #include <asm/atomic.h>
 #include <asm/page.h>
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