[PATCH] mempolicy.h: Remove unnecessary header file inclusions

[Junjie Fu <fujunjie1@qq.com>]

Originally, linux/mempolicy.h included linux/pagemap.h because vma_migratable()
was implemented inline within the header, requiring mapping_gfp_mask()
function to implement vma_migratable(). Now that vma_migratable() is only
declared in linux/mempolicy.h and its implementation has been moved to mempolicy.c,
the inclusion of linux/pagemap.h in the header is no longer necessary.

Additionally, since mempolicy.c includes internal.h, and internal.h already
includes linux/pagemap.h, so there is no need to modify mempolicy.c after
removing the direct inclusion of linux/pagemap.h from linux/mempolicy.h

Signed-off-by: Junjie Fu <fujunjie1@qq.com>
---
 include/linux/mempolicy.h | 1 -
 1 file changed, 1 deletion(-)

diff --git a/include/linux/mempolicy.h b/include/linux/mempolicy.h
index ce9885e0178a..d36877557b00 100644
--- a/include/linux/mempolicy.h
+++ b/include/linux/mempolicy.h
@@ -12,7 +12,6 @@
 #include <linux/rbtree.h>
 #include <linux/spinlock.h>
 #include <linux/nodemask.h>
-#include <linux/pagemap.h>
 #include <uapi/linux/mempolicy.h>
 
 struct mm_struct;
-- 
2.34.1