mm/mempool: minor coding style tweaks

Various coding style tweaks to various files under mm/

[[e-mail]: mm/swapfile: minor coding style tweaks]
Link: https://lkml.kernel.org/r/[e-mail]
[[e-mail]: mm/sparse: minor coding style tweaks]
Link: https://lkml.kernel.org/r/[e-mail]
[[e-mail]: mm/vmscan: minor coding style tweaks]
Link: https://lkml.kernel.org/r/[e-mail]
[[e-mail]: mm/compaction: minor coding style tweaks]
Link: https://lkml.kernel.org/r/[e-mail]
[[e-mail]: mm/oom_kill: minor coding style tweaks]
Link: https://lkml.kernel.org/r/[e-mail]
[[e-mail]: mm/shmem: minor coding style tweaks]
Link: https://lkml.kernel.org/r/[e-mail]
[[e-mail]: mm/page_alloc: minor coding style tweaks]
Link: https://lkml.kernel.org/r/[e-mail]
[[e-mail]: mm/filemap: minor coding style tweaks]
Link: https://lkml.kernel.org/r/[e-mail]
[[e-mail]: mm/mlock: minor coding style tweaks]
Link: https://lkml.kernel.org/r/[e-mail]
[[e-mail]: mm/frontswap: minor coding style tweaks]
Link: https://lkml.kernel.org/r/[e-mail]
[[e-mail]: mm/vmalloc: minor coding style tweaks]
Link: https://lkml.kernel.org/r/[e-mail]
[[e-mail]: mm/memory_hotplug: minor coding style tweaks]
Link: https://lkml.kernel.org/r/[e-mail]
[[e-mail]: mm/mempolicy: minor coding style tweaks]
Link: https://lkml.kernel.org/r/[e-mail]

Link: https://lkml.kernel.org/r/[e-mail]
Signed-off-by: Zhiyuan Dai <[e-mail]>
Signed-off-by: Andrew Morton <[e-mail]>
Signed-off-by: Linus Torvalds <[e-mail]>

mm/compaction.c

···
  */
 static int kcompactd(void *p)
 {
-	pg_data_t *pgdat = (pg_data_t*)p;
+	pg_data_t *pgdat = (pg_data_t *)p;
 	struct task_struct *tsk = current;
 	unsigned int proactive_defer = 0;
 

mm/filemap.c

···
 
 /* This is used for a general mmap of a disk file */
 
-int generic_file_mmap(struct file * file, struct vm_area_struct * vma)
+int generic_file_mmap(struct file *file, struct vm_area_struct *vma)
 {
 	struct address_space *mapping = file->f_mapping;
 
···
 {
 	return VM_FAULT_SIGBUS;
 }
-int generic_file_mmap(struct file * file, struct vm_area_struct * vma)
+int generic_file_mmap(struct file *file, struct vm_area_struct *vma)
 {
 	return -ENOSYS;
 }
-int generic_file_readonly_mmap(struct file * file, struct vm_area_struct * vma)
+int generic_file_readonly_mmap(struct file *file, struct vm_area_struct *vma)
 {
 	return -ENOSYS;
 }
···
 ssize_t __generic_file_write_iter(struct kiocb *iocb, struct iov_iter *from)
 {
 	struct file *file = iocb->ki_filp;
-	struct address_space * mapping = file->f_mapping;
+	struct address_space *mapping = file->f_mapping;
 	struct inode 	*inode = mapping->host;
 	ssize_t		written = 0;
 	ssize_t		err;

mm/frontswap.c

···
 static u64 frontswap_failed_stores;
 static u64 frontswap_invalidates;
 
-static inline void inc_frontswap_loads(void) {
+static inline void inc_frontswap_loads(void)
+{
 	data_race(frontswap_loads++);
 }
-static inline void inc_frontswap_succ_stores(void) {
+static inline void inc_frontswap_succ_stores(void)
+{
 	data_race(frontswap_succ_stores++);
 }
-static inline void inc_frontswap_failed_stores(void) {
+static inline void inc_frontswap_failed_stores(void)
+{
 	data_race(frontswap_failed_stores++);
 }
-static inline void inc_frontswap_invalidates(void) {
+static inline void inc_frontswap_invalidates(void)
+{
 	data_race(frontswap_invalidates++);
 }
 #else

mm/memory_hotplug.c

···
 	return movable_node_enabled ? movable_zone : kernel_zone;
 }
 
-struct zone * zone_for_pfn_range(int online_type, int nid, unsigned start_pfn,
+struct zone *zone_for_pfn_range(int online_type, int nid, unsigned start_pfn,
 		unsigned long nr_pages)
 {
 	if (online_type == MMOP_ONLINE_KERNEL)

mm/mempolicy.c

···
 	else if (pol->flags & MPOL_F_RELATIVE_NODES)
 		mpol_relative_nodemask(&tmp, &pol->w.user_nodemask, nodes);
 	else {
-		nodes_remap(tmp, pol->v.nodes,pol->w.cpuset_mems_allowed,
+		nodes_remap(tmp, pol->v.nodes, pol->w.cpuset_mems_allowed,
 								*nodes);
 		pol->w.cpuset_mems_allowed = *nodes;
 	}
···
 
 	tmp = *from;
 	while (!nodes_empty(tmp)) {
-		int s,d;
+		int s, d;
 		int source = NUMA_NO_NODE;
 		int dest = 0;
 

mm/mempool.c

···
 mempool_t *mempool_create(int min_nr, mempool_alloc_t *alloc_fn,
 				mempool_free_t *free_fn, void *pool_data)
 {
-	return mempool_create_node(min_nr,alloc_fn,free_fn, pool_data,
+	return mempool_create_node(min_nr, alloc_fn, free_fn, pool_data,
 				   GFP_KERNEL, NUMA_NO_NODE);
 }
 EXPORT_SYMBOL(mempool_create);

mm/mlock.c

···
 				vm_flags_t flags)
 {
 	unsigned long nstart, end, tmp;
-	struct vm_area_struct * vma, * prev;
+	struct vm_area_struct *vma, *prev;
 	int error;
 
 	VM_BUG_ON(offset_in_page(start));
···
  */
 static int apply_mlockall_flags(int flags)
 {
-	struct vm_area_struct * vma, * prev = NULL;
+	struct vm_area_struct *vma, *prev = NULL;
 	vm_flags_t to_add = 0;
 
 	current->mm->def_flags &= VM_LOCKED_CLEAR_MASK;

mm/oom_kill.c

···
 	if (oom_group) {
 		mem_cgroup_print_oom_group(oom_group);
 		mem_cgroup_scan_tasks(oom_group, oom_kill_memcg_member,
-				      (void*)message);
+				      (void *)message);
 		mem_cgroup_put(oom_group);
 	}
 }

mm/page_alloc.c

···
 	ret = __alloc_contig_migrate_range(&cc, start, end);
 	if (ret && ret != -EBUSY)
 		goto done;
-	ret =0;
+	ret = 0;
 
 	/*
 	 * Pages from [start, end) are within a MAX_ORDER_NR_PAGES

mm/shmem.c

···
 			}
 		}
 		if (*this_char) {
-			char *value = strchr(this_char,'=');
+			char *value = strchr(this_char, '=');
 			size_t len = 0;
 			int err;
 

mm/sparse.c

···
 	if (unlikely(!mem_section)) {
 		unsigned long size, align;
 
-		size = sizeof(struct mem_section*) * NR_SECTION_ROOTS;
+		size = sizeof(struct mem_section *) * NR_SECTION_ROOTS;
 		align = 1 << (INTERNODE_CACHE_SHIFT);
 		mem_section = memblock_alloc(size, align);
 		if (!mem_section)

mm/swapfile.c

···
 	unsigned int bytes, inuse;
 
 	if (si == SEQ_START_TOKEN) {
-		seq_puts(swap,"Filename\t\t\t\tType\t\tSize\t\tUsed\t\tPriority\n");
+		seq_puts(swap, "Filename\t\t\t\tType\t\tSize\t\tUsed\t\tPriority\n");
 		return 0;
 	}
 
···
 					 sizeof(long),
 					 GFP_KERNEL);
 
-	if (p->bdev &&(swap_flags & SWAP_FLAG_DISCARD) && swap_discardable(p)) {
+	if (p->bdev && (swap_flags & SWAP_FLAG_DISCARD) && swap_discardable(p)) {
 		/*
 		 * When discard is enabled for swap with no particular
 		 * policy flagged, we set all swap discard flags here in

mm/vmalloc.c

···
  * 64b systems should always have either DMA or DMA32 zones. For others
  * GFP_DMA32 should do the right thing and use the normal zone.
  */
-#define GFP_VMALLOC32 GFP_DMA32 | GFP_KERNEL
+#define GFP_VMALLOC32 (GFP_DMA32 | GFP_KERNEL)
 #endif
 
 /**

mm/vmscan.c

···
 {
 	unsigned int alloc_order, reclaim_order;
 	unsigned int highest_zoneidx = MAX_NR_ZONES - 1;
-	pg_data_t *pgdat = (pg_data_t*)p;
+	pg_data_t *pgdat = (pg_data_t *)p;
 	struct task_struct *tsk = current;
 	const struct cpumask *cpumask = cpumask_of_node(pgdat->node_id);