mm/page_alloc.c: fix coding style and spelling

Fix all errors reported by checkpatch and some small spelling mistakes.
Signed-off-by: Pintu Kumar <pintu.k@samsung.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

mm/page_alloc.c

@@ -721,7 +721,8 @@ static bool free_pages_prepare(struct page *page, unsigned int order)
 		return false;
 
 	if (!PageHighMem(page)) {
-		debug_check_no_locks_freed(page_address(page),PAGE_SIZE<<order);
+		debug_check_no_locks_freed(page_address(page),
+					   PAGE_SIZE << order);
 		debug_check_no_obj_freed(page_address(page),
 					   PAGE_SIZE << order);
 	}
@@ -885,7 +886,7 @@ struct page *__rmqueue_smallest(struct zone *zone, unsigned int order,
 						int migratetype)
 {
 	unsigned int current_order;
-	struct free_area * area;
+	struct free_area *area;
 	struct page *page;
 
 	/* Find a page of the appropriate size in the preferred list */
@@ -1011,7 +1012,7 @@ static void change_pageblock_range(struct page *pageblock_page,
 static inline struct page *
 __rmqueue_fallback(struct zone *zone, int order, int start_migratetype)
 {
-	struct free_area * area;
+	struct free_area *area;
 	int current_order;
 	struct page *page;
 	int migratetype, i;
@@ -3416,7 +3417,7 @@ static void build_zonelists_in_zone_order(pg_data_t *pgdat, int nr_nodes)
 static int default_zonelist_order(void)
 {
 	int nid, zone_type;
-	unsigned long low_kmem_size,total_size;
+	unsigned long low_kmem_size, total_size;
 	struct zone *z;
 	int average_size;
 	/*
@@ -4180,7 +4181,7 @@ int zone_wait_table_init(struct zone *zone, unsigned long zone_size_pages)
 	if (!zone->wait_table)
 		return -ENOMEM;
 
-	for(i = 0; i < zone->wait_table_hash_nr_entries; ++i)
+	for (i = 0; i < zone->wait_table_hash_nr_entries; ++i)
 		init_waitqueue_head(zone->wait_table + i);
 
 	return 0;
@@ -5047,7 +5048,7 @@ static void __init find_zone_movable_pfns_for_nodes(void)
 			/*
 			 * Some kernelcore has been met, update counts and
 			 * break if the kernelcore for this node has been
-			 * satisified
+			 * satisfied
 			 */
 			required_kernelcore -= min(required_kernelcore,
 								size_pages);
@@ -5061,7 +5062,7 @@ static void __init find_zone_movable_pfns_for_nodes(void)
 	 * If there is still required_kernelcore, we do another pass with one
 	 * less node in the count. This will push zone_movable_pfn[nid] further
 	 * along on the nodes that still have memory until kernelcore is
-	 * satisified
+	 * satisfied
 	 */
 	usable_nodes--;
 	if (usable_nodes && required_kernelcore > usable_nodes)
@@ -5286,8 +5287,10 @@ void __init mem_init_print_info(const char *str)
 	 * 3) .rodata.* may be embedded into .text or .data sections.
 	 */
 #define adj_init_size(start, end, size, pos, adj) \
+	do { \
 		if (start <= pos && pos < end && size > adj) \
-		size -= adj;
+			size -= adj; \
+	} while (0)
 
 	adj_init_size(__init_begin, __init_end, init_data_size,
 		     _sinittext, init_code_size);
@@ -5682,8 +5685,8 @@ int lowmem_reserve_ratio_sysctl_handler(ctl_table *table, int write,
 
 /*
  * percpu_pagelist_fraction - changes the pcp->high for each zone on each
- * cpu.  It is the fraction of total pages in each zone that a hot per cpu pagelist
- * can have before it gets flushed back to buddy allocator.
+ * cpu.  It is the fraction of total pages in each zone that a hot per cpu
+ * pagelist can have before it gets flushed back to buddy allocator.
  */
 int percpu_pagelist_fraction_sysctl_handler(ctl_table *table, int write,
 	void __user *buffer, size_t *length, loff_t *ppos)
@@ -5901,7 +5904,7 @@ void set_pageblock_flags_group(struct page *page, unsigned long flags,
  * This function checks whether pageblock includes unmovable pages or not.
  * If @count is not zero, it is okay to include less @count unmovable pages
  *
- * PageLRU check wihtout isolation or lru_lock could race so that
+ * PageLRU check without isolation or lru_lock could race so that
  * MIGRATE_MOVABLE block might include unmovable pages. It means you can't
  * expect this function should be exact.
  */