[PATCH -next] mm: Drop unnecessary include file

[Guenter Roeck <linux@roeck-us.net>]

Commmit e9be930fa6b5 ("mm: fix vm-scalability regression in cgroup-aware
workingset code") adds '#include <linux/mm.h>' to
include/linux/memcontrol.h. This results in the following build error
when building hexagon images.

In file included from ./include/linux/memcontrol.h:32:0,
                 from ./include/linux/swap.h:8,
		 from ./arch/hexagon/include/asm/pgtable.h:27,
		 from mm/init-mm.c:9:
./include/linux/mm.h:322:2: error: unknown type name 'pmd_t'
./include/linux/mm.h:353:7: error: unknown type name 'pmd_t'
./include/linux/mm.h:414:30: error: unknown type name 'pmd_t'

The include file does not appear to be necessary, so just drop it.

Fixes: e9be930fa6b5 ("mm: fix vm-scalability regression in cgroup-aware workingset code")
Cc: Johannes Weiner <hannes@cmpxchg.org>
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
---
Build tested with all architectures. No related build failures observed.

 include/linux/memcontrol.h | 1 -
 1 file changed, 1 deletion(-)

diff --git a/include/linux/memcontrol.h b/include/linux/memcontrol.h
index 2cf30455b25f..5d8ca6e02e39 100644
--- a/include/linux/memcontrol.h
+++ b/include/linux/memcontrol.h
@@ -29,7 +29,6 @@
 #include <linux/mmzone.h>
 #include <linux/writeback.h>
 #include <linux/page-flags.h>
-#include <linux/mm.h>
 
 struct mem_cgroup;
 struct page;
-- 
2.5.0