mm: make totalhigh_pages unsigned long

Makes it consistent with the extern declaration, used when CONFIG_HIGHMEM
is set Removes redundant casts in printout messages

Signed-off-by: Andreas Fenkart <andreas.fenkart@streamunlimited.com>
Acked-by: Russell King <rmk+kernel@arm.linux.org.uk>
Cc: Ralf Baechle <ralf@linux-mips.org>
Cc: David Howells <dhowells@redhat.com>
Cc: Ingo Molnar <mingo@elte.hu>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: "H. Peter Anvin" <hpa@zytor.com>
Cc: Chen Liqin <liqin.chen@sunplusct.com>
Cc: Lennox Wu <lennox.wu@gmail.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

arch/arm/mm/init.c

@@ -616,7 +616,7 @@ void __init mem_init(void)
 		"%dK data, %dK init, %luK highmem)\n",
 		nr_free_pages() << (PAGE_SHIFT-10), codesize >> 10,
 		datasize >> 10, initsize >> 10,
-		(unsigned long) (totalhigh_pages << (PAGE_SHIFT-10)));
+		totalhigh_pages << (PAGE_SHIFT-10));
 
 	if (PAGE_SIZE >= 16384 && num_physpages <= 128) {
 		extern int sysctl_overcommit_memory;

arch/mips/mm/init.c

@@ -424,7 +424,7 @@ void __init mem_init(void)
 	       reservedpages << (PAGE_SHIFT-10),
 	       datasize >> 10,
 	       initsize >> 10,
-	       (unsigned long) (totalhigh_pages << (PAGE_SHIFT-10)));
+	       totalhigh_pages << (PAGE_SHIFT-10));
 }
 #endif /* !CONFIG_NEED_MULTIPLE_NODES */
 

arch/mips/sgi-ip27/ip27-memory.c

@@ -505,5 +505,5 @@ void __init mem_init(void)
 	       (num_physpages - tmp) << (PAGE_SHIFT-10),
 	       datasize >> 10,
 	       initsize >> 10,
-	       (unsigned long) (totalhigh_pages << (PAGE_SHIFT-10)));
+	       totalhigh_pages << (PAGE_SHIFT-10));
 }

arch/mn10300/mm/init.c

@@ -118,8 +118,7 @@ void __init mem_init(void)
 	       reservedpages << (PAGE_SHIFT - 10),
 	       datasize >> 10,
 	       initsize >> 10,
-	       (unsigned long) (totalhigh_pages << (PAGE_SHIFT - 10))
-	       );
+	       totalhigh_pages << (PAGE_SHIFT - 10));
 }
 
 /*

arch/score/mm/init.c

@@ -106,7 +106,7 @@ void __init mem_init(void)
 			ram << (PAGE_SHIFT-10), codesize >> 10,
 			reservedpages << (PAGE_SHIFT-10), datasize >> 10,
 			initsize >> 10,
-			(unsigned long) (totalhigh_pages << (PAGE_SHIFT-10)));
+			totalhigh_pages << (PAGE_SHIFT-10));
 }
 #endif /* !CONFIG_NEED_MULTIPLE_NODES */
 

arch/x86/mm/init_32.c

@@ -892,8 +892,7 @@ void __init mem_init(void)
 		reservedpages << (PAGE_SHIFT-10),
 		datasize >> 10,
 		initsize >> 10,
-		(unsigned long) (totalhigh_pages << (PAGE_SHIFT-10))
-	       );
+		totalhigh_pages << (PAGE_SHIFT-10));
 
 	printk(KERN_INFO "virtual kernel memory layout:\n"
 		"    fixmap  : 0x%08lx - 0x%08lx   (%4ld kB)\n"

include/linux/highmem.h

@@ -46,7 +46,7 @@ void kmap_flush_unused(void);
 
 static inline unsigned int nr_free_highpages(void) { return 0; }
 
-#define totalhigh_pages 0
+#define totalhigh_pages 0UL
 
 #ifndef ARCH_HAS_KMAP
 static inline void *kmap(struct page *page)