ipc: whitespace cleanup

The ipc code does not adhere the typical linux coding style.
This patch fixes lots of simple whitespace errors.

- mostly autogenerated by
  scripts/checkpatch.pl -f --fix \
	--types=pointer_location,spacing,space_before_tab
- one manual fixup (keep structure members tab-aligned)
- removal of additional space_before_tab that were not found by --fix

Tested with some of my msg and sem test apps.

Andrew: Could you include it in -mm and move it towards Linus' tree?
Signed-off-by: Manfred Spraul <manfred@colorfullife.com>
Suggested-by: Li Bin <huawei.libin@huawei.com>
Cc: Joe Perches <joe@perches.com>
Acked-by: Rafael Aquini <aquini@redhat.com>
Cc: Davidlohr Bueso <davidlohr@hp.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

include/linux/msg.h

@@ -9,7 +9,7 @@ struct msg_msg {
 	struct list_head m_list;
 	long m_type;
 	size_t m_ts;		/* message text size */
-	struct msg_msgseg* next;
+	struct msg_msgseg *next;
 	void *security;
 	/* the actual message follows immediately */
 };

include/linux/shm.h

@@ -9,7 +9,7 @@
 struct shmid_kernel /* private to the kernel */
 {	
 	struct kern_ipc_perm	shm_perm;
-	struct file *		shm_file;
+	struct file		*shm_file;
 	unsigned long		shm_nattch;
 	unsigned long		shm_segsz;
 	time_t			shm_atim;

ipc/compat.c

@@ -197,7 +197,7 @@ static inline int __put_compat_ipc_perm(struct ipc64_perm *p,
 static inline int get_compat_semid64_ds(struct semid64_ds *s64,
 					struct compat_semid64_ds __user *up64)
 {
-	if (!access_ok (VERIFY_READ, up64, sizeof(*up64)))
+	if (!access_ok(VERIFY_READ, up64, sizeof(*up64)))
 		return -EFAULT;
 	return __get_compat_ipc64_perm(&s64->sem_perm, &up64->sem_perm);
 }
@@ -205,7 +205,7 @@ static inline int get_compat_semid64_ds(struct semid64_ds *s64,
 static inline int get_compat_semid_ds(struct semid64_ds *s,
 				      struct compat_semid_ds __user *up)
 {
-	if (!access_ok (VERIFY_READ, up, sizeof(*up)))
+	if (!access_ok(VERIFY_READ, up, sizeof(*up)))
 		return -EFAULT;
 	return __get_compat_ipc_perm(&s->sem_perm, &up->sem_perm);
 }
@@ -215,7 +215,7 @@ static inline int put_compat_semid64_ds(struct semid64_ds *s64,
 {
 	int err;
 
-	if (!access_ok (VERIFY_WRITE, up64, sizeof(*up64)))
+	if (!access_ok(VERIFY_WRITE, up64, sizeof(*up64)))
 		return -EFAULT;
 	err  = __put_compat_ipc64_perm(&s64->sem_perm, &up64->sem_perm);
 	err |= __put_user(s64->sem_otime, &up64->sem_otime);
@@ -229,7 +229,7 @@ static inline int put_compat_semid_ds(struct semid64_ds *s,
 {
 	int err;
 
-	if (!access_ok (VERIFY_WRITE, up, sizeof(*up)))
+	if (!access_ok(VERIFY_WRITE, up, sizeof(*up)))
 		return -EFAULT;
 	err  = __put_compat_ipc_perm(&s->sem_perm, &up->sem_perm);
 	err |= __put_user(s->sem_otime, &up->sem_otime);
@@ -376,7 +376,7 @@ COMPAT_SYSCALL_DEFINE6(ipc, u32, call, int, first, int, second,
 			struct compat_ipc_kludge ipck;
 			if (!uptr)
 				return -EINVAL;
-			if (copy_from_user (&ipck, uptr, sizeof(ipck)))
+			if (copy_from_user(&ipck, uptr, sizeof(ipck)))
 				return -EFAULT;
 			uptr = compat_ptr(ipck.msgp);
 			fifth = ipck.msgtyp;

ipc/compat_mq.c

@@ -64,7 +64,7 @@ asmlinkage long compat_sys_mq_open(const char __user *u_name,
 	return sys_mq_open(u_name, oflag, mode, p);
 }
 
-static int compat_prepare_timeout(struct timespec __user * *p,
+static int compat_prepare_timeout(struct timespec __user **p,
 				  const struct compat_timespec __user *u)
 {
 	struct timespec ts;

ipc/ipc_sysctl.c

@@ -164,21 +164,21 @@ static struct ctl_table ipc_kern_table[] = {
 	{
 		.procname	= "shmmax",
 		.data		= &init_ipc_ns.shm_ctlmax,
-		.maxlen		= sizeof (init_ipc_ns.shm_ctlmax),
+		.maxlen		= sizeof(init_ipc_ns.shm_ctlmax),
 		.mode		= 0644,
 		.proc_handler	= proc_ipc_doulongvec_minmax,
 	},
 	{
 		.procname	= "shmall",
 		.data		= &init_ipc_ns.shm_ctlall,
-		.maxlen		= sizeof (init_ipc_ns.shm_ctlall),
+		.maxlen		= sizeof(init_ipc_ns.shm_ctlall),
 		.mode		= 0644,
 		.proc_handler	= proc_ipc_doulongvec_minmax,
 	},
 	{
 		.procname	= "shmmni",
 		.data		= &init_ipc_ns.shm_ctlmni,
-		.maxlen		= sizeof (init_ipc_ns.shm_ctlmni),
+		.maxlen		= sizeof(init_ipc_ns.shm_ctlmni),
 		.mode		= 0644,
 		.proc_handler	= proc_ipc_dointvec,
 	},
@@ -194,7 +194,7 @@ static struct ctl_table ipc_kern_table[] = {
 	{
 		.procname	= "msgmax",
 		.data		= &init_ipc_ns.msg_ctlmax,
-		.maxlen		= sizeof (init_ipc_ns.msg_ctlmax),
+		.maxlen		= sizeof(init_ipc_ns.msg_ctlmax),
 		.mode		= 0644,
 		.proc_handler	= proc_ipc_dointvec_minmax,
 		.extra1		= &zero,
@@ -203,7 +203,7 @@ static struct ctl_table ipc_kern_table[] = {
 	{
 		.procname	= "msgmni",
 		.data		= &init_ipc_ns.msg_ctlmni,
-		.maxlen		= sizeof (init_ipc_ns.msg_ctlmni),
+		.maxlen		= sizeof(init_ipc_ns.msg_ctlmni),
 		.mode		= 0644,
 		.proc_handler	= proc_ipc_callback_dointvec_minmax,
 		.extra1		= &zero,
@@ -212,7 +212,7 @@ static struct ctl_table ipc_kern_table[] = {
 	{
 		.procname	=  "msgmnb",
 		.data		= &init_ipc_ns.msg_ctlmnb,
-		.maxlen		= sizeof (init_ipc_ns.msg_ctlmnb),
+		.maxlen		= sizeof(init_ipc_ns.msg_ctlmnb),
 		.mode		= 0644,
 		.proc_handler	= proc_ipc_dointvec_minmax,
 		.extra1		= &zero,
@@ -221,7 +221,7 @@ static struct ctl_table ipc_kern_table[] = {
 	{
 		.procname	= "sem",
 		.data		= &init_ipc_ns.sem_ctls,
-		.maxlen		= 4*sizeof (int),
+		.maxlen		= 4*sizeof(int),
 		.mode		= 0644,
 		.proc_handler	= proc_ipc_dointvec,
 	},

ipc/mqueue.c

@@ -73,7 +73,7 @@ struct mqueue_inode_info {
 	struct mq_attr attr;
 
 	struct sigevent notify;
-	struct pid* notify_owner;
+	struct pid *notify_owner;
 	struct user_namespace *notify_user_ns;
 	struct user_struct *user;	/* user who created, for accounting */
 	struct sock *notify_sock;
@@ -92,7 +92,7 @@ static void remove_notification(struct mqueue_inode_info *info);
 
 static struct kmem_cache *mqueue_inode_cachep;
 
-static struct ctl_table_header * mq_sysctl_table;
+static struct ctl_table_header *mq_sysctl_table;
 
 static inline struct mqueue_inode_info *MQUEUE_I(struct inode *inode)
 {
@@ -622,7 +622,7 @@ static struct ext_wait_queue *wq_get_first_waiter(
 
 static inline void set_cookie(struct sk_buff *skb, char code)
 {
-	((char*)skb->data)[NOTIFY_COOKIE_LEN-1] = code;
+	((char *)skb->data)[NOTIFY_COOKIE_LEN-1] = code;
 }
 
 /*

ipc/msg.c

@@ -318,7 +318,7 @@ SYSCALL_DEFINE2(msgget, key_t, key, int, msgflg)
 static inline unsigned long
 copy_msqid_to_user(void __user *buf, struct msqid64_ds *in, int version)
 {
-	switch(version) {
+	switch (version) {
 	case IPC_64:
 		return copy_to_user(buf, in, sizeof(*in));
 	case IPC_OLD:
@@ -363,7 +363,7 @@ copy_msqid_to_user(void __user *buf, struct msqid64_ds *in, int version)
 static inline unsigned long
 copy_msqid_from_user(struct msqid64_ds *out, void __user *buf, int version)
 {
-	switch(version) {
+	switch (version) {
 	case IPC_64:
 		if (copy_from_user(out, buf, sizeof(*out)))
 			return -EFAULT;
@@ -606,13 +606,13 @@ SYSCALL_DEFINE3(msgctl, int, msqid, int, cmd, struct msqid_ds __user *, buf)
 
 static int testmsg(struct msg_msg *msg, long type, int mode)
 {
-	switch(mode)
+	switch (mode)
 	{
 		case SEARCH_ANY:
 		case SEARCH_NUMBER:
 			return 1;
 		case SEARCH_LESSEQUAL:
-			if (msg->m_type <=type)
+			if (msg->m_type <= type)
 				return 1;
 			break;
 		case SEARCH_EQUAL:
@@ -984,7 +984,7 @@ long do_msgrcv(int msqid, void __user *buf, size_t bufsz, long msgtyp, int msgfl
 		 * wake_up_process(). There is a race with exit(), see
 		 * ipc/mqueue.c for the details.
 		 */
-		msg = (struct msg_msg*)msr_d.r_msg;
+		msg = (struct msg_msg *)msr_d.r_msg;
 		while (msg == NULL) {
 			cpu_relax();
 			msg = (struct msg_msg *)msr_d.r_msg;
@@ -1005,7 +1005,7 @@ long do_msgrcv(int msqid, void __user *buf, size_t bufsz, long msgtyp, int msgfl
 		/* Lockless receive, part 4:
 		 * Repeat test after acquiring the spinlock.
 		 */
-		msg = (struct msg_msg*)msr_d.r_msg;
+		msg = (struct msg_msg *)msr_d.r_msg;
 		if (msg != ERR_PTR(-EAGAIN))
 			goto out_unlock0;
 

ipc/sem.c

@@ -188,7 +188,7 @@ void sem_exit_ns(struct ipc_namespace *ns)
 }
 #endif
 
-void __init sem_init (void)
+void __init sem_init(void)
 {
 	sem_init_ns(&init_ipc_ns);
 	ipc_init_proc_interface("sysvipc/sem",
@@ -491,12 +491,12 @@ static int newary(struct ipc_namespace *ns, struct ipc_params *params)
 	if (ns->used_sems + nsems > ns->sc_semmns)
 		return -ENOSPC;
 
-	size = sizeof (*sma) + nsems * sizeof (struct sem);
+	size = sizeof(*sma) + nsems * sizeof(struct sem);
 	sma = ipc_rcu_alloc(size);
 	if (!sma) {
 		return -ENOMEM;
 	}
-	memset (sma, 0, size);
+	memset(sma, 0, size);
 
 	sma->sem_perm.mode = (semflg & S_IRWXUGO);
 	sma->sem_perm.key = key;
@@ -601,7 +601,7 @@ static int perform_atomic_semop(struct sem_array *sma, struct sembuf *sops,
 {
 	int result, sem_op;
 	struct sembuf *sop;
-	struct sem * curr;
+	struct sem *curr;
 
 	for (sop = sops; sop < sops + nsops; sop++) {
 		curr = sma->sem_base + sop->sem_num;
@@ -1000,21 +1000,21 @@ static void do_smart_update(struct sem_array *sma, struct sembuf *sops, int nsop
  * The counts we return here are a rough approximation, but still
  * warrant that semncnt+semzcnt>0 if the task is on the pending queue.
  */
-static int count_semncnt (struct sem_array * sma, ushort semnum)
+static int count_semncnt(struct sem_array *sma, ushort semnum)
 {
 	int semncnt;
-	struct sem_queue * q;
+	struct sem_queue *q;
 
 	semncnt = 0;
 	list_for_each_entry(q, &sma->sem_base[semnum].pending_alter, list) {
-		struct sembuf * sops = q->sops;
+		struct sembuf *sops = q->sops;
 		BUG_ON(sops->sem_num != semnum);
 		if ((sops->sem_op < 0) && !(sops->sem_flg & IPC_NOWAIT))
 			semncnt++;
 	}
 
 	list_for_each_entry(q, &sma->pending_alter, list) {
-		struct sembuf * sops = q->sops;
+		struct sembuf *sops = q->sops;
 		int nsops = q->nsops;
 		int i;
 		for (i = 0; i < nsops; i++)
@@ -1026,21 +1026,21 @@ static int count_semncnt (struct sem_array * sma, ushort semnum)
 	return semncnt;
 }
 
-static int count_semzcnt (struct sem_array * sma, ushort semnum)
+static int count_semzcnt(struct sem_array *sma, ushort semnum)
 {
 	int semzcnt;
-	struct sem_queue * q;
+	struct sem_queue *q;
 
 	semzcnt = 0;
 	list_for_each_entry(q, &sma->sem_base[semnum].pending_const, list) {
-		struct sembuf * sops = q->sops;
+		struct sembuf *sops = q->sops;
 		BUG_ON(sops->sem_num != semnum);
 		if ((sops->sem_op == 0) && !(sops->sem_flg & IPC_NOWAIT))
 			semzcnt++;
 	}
 
 	list_for_each_entry(q, &sma->pending_const, list) {
-		struct sembuf * sops = q->sops;
+		struct sembuf *sops = q->sops;
 		int nsops = q->nsops;
 		int i;
 		for (i = 0; i < nsops; i++)
@@ -1110,7 +1110,7 @@ static void freeary(struct ipc_namespace *ns, struct kern_ipc_perm *ipcp)
 
 static unsigned long copy_semid_to_user(void __user *buf, struct semid64_ds *in, int version)
 {
-	switch(version) {
+	switch (version) {
 	case IPC_64:
 		return copy_to_user(buf, in, sizeof(*in));
 	case IPC_OLD:
@@ -1153,7 +1153,7 @@ static int semctl_nolock(struct ipc_namespace *ns, int semid,
 	int err;
 	struct sem_array *sma;
 
-	switch(cmd) {
+	switch (cmd) {
 	case IPC_INFO:
 	case SEM_INFO:
 	{
@@ -1164,7 +1164,7 @@ static int semctl_nolock(struct ipc_namespace *ns, int semid,
 		if (err)
 			return err;
 		
-		memset(&seminfo,0,sizeof(seminfo));
+		memset(&seminfo, 0, sizeof(seminfo));
 		seminfo.semmni = ns->sc_semmni;
 		seminfo.semmns = ns->sc_semmns;
 		seminfo.semmsl = ns->sc_semmsl;
@@ -1185,7 +1185,7 @@ static int semctl_nolock(struct ipc_namespace *ns, int semid,
 		up_read(&sem_ids(ns).rwsem);
 		if (copy_to_user(p, &seminfo, sizeof(struct seminfo))) 
 			return -EFAULT;
-		return (max_id < 0) ? 0: max_id;
+		return (max_id < 0) ? 0 : max_id;
 	}
 	case IPC_STAT:
 	case SEM_STAT:
@@ -1241,7 +1241,7 @@ static int semctl_setval(struct ipc_namespace *ns, int semid, int semnum,
 {
 	struct sem_undo *un;
 	struct sem_array *sma;
-	struct sem* curr;
+	struct sem *curr;
 	int err;
 	struct list_head tasks;
 	int val;
@@ -1311,10 +1311,10 @@ static int semctl_main(struct ipc_namespace *ns, int semid, int semnum,
 		int cmd, void __user *p)
 {
 	struct sem_array *sma;
-	struct sem* curr;
+	struct sem *curr;
 	int err, nsems;
 	ushort fast_sem_io[SEMMSL_FAST];
-	ushort* sem_io = fast_sem_io;
+	ushort *sem_io = fast_sem_io;
 	struct list_head tasks;
 
 	INIT_LIST_HEAD(&tasks);
@@ -1348,7 +1348,7 @@ static int semctl_main(struct ipc_namespace *ns, int semid, int semnum,
 			err = -EIDRM;
 			goto out_unlock;
 		}
-		if(nsems > SEMMSL_FAST) {
+		if (nsems > SEMMSL_FAST) {
 			if (!ipc_rcu_getref(sma)) {
 				err = -EIDRM;
 				goto out_unlock;
@@ -1356,7 +1356,7 @@ static int semctl_main(struct ipc_namespace *ns, int semid, int semnum,
 			sem_unlock(sma, -1);
 			rcu_read_unlock();
 			sem_io = ipc_alloc(sizeof(ushort)*nsems);
-			if(sem_io == NULL) {
+			if (sem_io == NULL) {
 				ipc_rcu_putref(sma, ipc_rcu_free);
 				return -ENOMEM;
 			}
@@ -1373,7 +1373,7 @@ static int semctl_main(struct ipc_namespace *ns, int semid, int semnum,
 		sem_unlock(sma, -1);
 		rcu_read_unlock();
 		err = 0;
-		if(copy_to_user(array, sem_io, nsems*sizeof(ushort)))
+		if (copy_to_user(array, sem_io, nsems*sizeof(ushort)))
 			err = -EFAULT;
 		goto out_free;
 	}
@@ -1388,15 +1388,15 @@ static int semctl_main(struct ipc_namespace *ns, int semid, int semnum,
 		}
 		rcu_read_unlock();
 
-		if(nsems > SEMMSL_FAST) {
+		if (nsems > SEMMSL_FAST) {
 			sem_io = ipc_alloc(sizeof(ushort)*nsems);
-			if(sem_io == NULL) {
+			if (sem_io == NULL) {
 				ipc_rcu_putref(sma, ipc_rcu_free);
 				return -ENOMEM;
 			}
 		}
 
-		if (copy_from_user (sem_io, p, nsems*sizeof(ushort))) {
+		if (copy_from_user(sem_io, p, nsems*sizeof(ushort))) {
 			ipc_rcu_putref(sma, ipc_rcu_free);
 			err = -EFAULT;
 			goto out_free;
@@ -1451,10 +1451,10 @@ static int semctl_main(struct ipc_namespace *ns, int semid, int semnum,
 		err = curr->sempid;
 		goto out_unlock;
 	case GETNCNT:
-		err = count_semncnt(sma,semnum);
+		err = count_semncnt(sma, semnum);
 		goto out_unlock;
 	case GETZCNT:
-		err = count_semzcnt(sma,semnum);
+		err = count_semzcnt(sma, semnum);
 		goto out_unlock;
 	}
 
@@ -1464,7 +1464,7 @@ static int semctl_main(struct ipc_namespace *ns, int semid, int semnum,
 	rcu_read_unlock();
 	wake_up_sem_queue_do(&tasks);
 out_free:
-	if(sem_io != fast_sem_io)
+	if (sem_io != fast_sem_io)
 		ipc_free(sem_io, sizeof(ushort)*nsems);
 	return err;
 }
@@ -1472,7 +1472,7 @@ static int semctl_main(struct ipc_namespace *ns, int semid, int semnum,
 static inline unsigned long
 copy_semid_from_user(struct semid64_ds *out, void __user *buf, int version)
 {
-	switch(version) {
+	switch (version) {
 	case IPC_64:
 		if (copy_from_user(out, buf, sizeof(*out)))
 			return -EFAULT;
@@ -1481,7 +1481,7 @@ copy_semid_from_user(struct semid64_ds *out, void __user *buf, int version)
 	    {
 		struct semid_ds tbuf_old;
 
-		if(copy_from_user(&tbuf_old, buf, sizeof(tbuf_old)))
+		if (copy_from_user(&tbuf_old, buf, sizeof(tbuf_old)))
 			return -EFAULT;
 
 		out->sem_perm.uid	= tbuf_old.sem_perm.uid;
@@ -1508,7 +1508,7 @@ static int semctl_down(struct ipc_namespace *ns, int semid,
 	struct semid64_ds semid64;
 	struct kern_ipc_perm *ipcp;
 
-	if(cmd == IPC_SET) {
+	if (cmd == IPC_SET) {
 		if (copy_semid_from_user(&semid64, p, version))
 			return -EFAULT;
 	}
@@ -1568,7 +1568,7 @@ SYSCALL_DEFINE4(semctl, int, semid, int, semnum, int, cmd, unsigned long, arg)
 	version = ipc_parse_version(&cmd);
 	ns = current->nsproxy->ipc_ns;
 
-	switch(cmd) {
+	switch (cmd) {
 	case IPC_INFO:
 	case SEM_INFO:
 	case IPC_STAT:
@@ -1672,7 +1672,7 @@ static struct sem_undo *find_alloc_undo(struct ipc_namespace *ns, int semid)
 	spin_lock(&ulp->lock);
 	un = lookup_undo(ulp, semid);
 	spin_unlock(&ulp->lock);
-	if (likely(un!=NULL))
+	if (likely(un != NULL))
 		goto out;
 
 	/* no undo structure around - allocate one. */
@@ -1767,7 +1767,7 @@ SYSCALL_DEFINE4(semtimedop, int, semid, struct sembuf __user *, tsops,
 	int error = -EINVAL;
 	struct sem_array *sma;
 	struct sembuf fast_sops[SEMOPM_FAST];
-	struct sembuf* sops = fast_sops, *sop;
+	struct sembuf *sops = fast_sops, *sop;
 	struct sem_undo *un;
 	int undos = 0, alter = 0, max, locknum;
 	struct sem_queue queue;
@@ -1781,13 +1781,13 @@ SYSCALL_DEFINE4(semtimedop, int, semid, struct sembuf __user *, tsops,
 		return -EINVAL;
 	if (nsops > ns->sc_semopm)
 		return -E2BIG;
-	if(nsops > SEMOPM_FAST) {
-		sops = kmalloc(sizeof(*sops)*nsops,GFP_KERNEL);
-		if(sops==NULL)
+	if (nsops > SEMOPM_FAST) {
+		sops = kmalloc(sizeof(*sops)*nsops, GFP_KERNEL);
+		if (sops == NULL)
 			return -ENOMEM;
 	}
-	if (copy_from_user (sops, tsops, nsops * sizeof(*tsops))) {
-		error=-EFAULT;
+	if (copy_from_user(sops, tsops, nsops * sizeof(*tsops))) {
+		error =  -EFAULT;
 		goto out_free;
 	}
 	if (timeout) {
@@ -1994,7 +1994,7 @@ SYSCALL_DEFINE4(semtimedop, int, semid, struct sembuf __user *, tsops,
 	rcu_read_unlock();
 	wake_up_sem_queue_do(&tasks);
 out_free:
-	if(sops != fast_sops)
+	if (sops != fast_sops)
 		kfree(sops);
 	return error;
 }
@@ -2103,7 +2103,7 @@ void exit_sem(struct task_struct *tsk)
 
 		/* perform adjustments registered in un */
 		for (i = 0; i < sma->sem_nsems; i++) {
-			struct sem * semaphore = &sma->sem_base[i];
+			struct sem *semaphore = &sma->sem_base[i];
 			if (un->semadj[i]) {
 				semaphore->semval += un->semadj[i];
 				/*

ipc/shm.c

@@ -67,7 +67,7 @@ static const struct vm_operations_struct shm_vm_ops;
 static int newseg(struct ipc_namespace *, struct ipc_params *);
 static void shm_open(struct vm_area_struct *vma);
 static void shm_close(struct vm_area_struct *vma);
-static void shm_destroy (struct ipc_namespace *ns, struct shmid_kernel *shp);
+static void shm_destroy(struct ipc_namespace *ns, struct shmid_kernel *shp);
 #ifdef CONFIG_PROC_FS
 static int sysvipc_shm_proc_show(struct seq_file *s, void *it);
 #endif
@@ -91,7 +91,7 @@ static void do_shm_rmid(struct ipc_namespace *ns, struct kern_ipc_perm *ipcp)
 	struct shmid_kernel *shp;
 	shp = container_of(ipcp, struct shmid_kernel, shm_perm);
 
-	if (shp->shm_nattch){
+	if (shp->shm_nattch) {
 		shp->shm_perm.mode |= SHM_DEST;
 		/* Do not find it any more */
 		shp->shm_perm.key = IPC_PRIVATE;
@@ -116,7 +116,7 @@ static int __init ipc_ns_init(void)
 
 pure_initcall(ipc_ns_init);
 
-void __init shm_init (void)
+void __init shm_init(void)
 {
 	ipc_init_proc_interface("sysvipc/shm",
 #if BITS_PER_LONG <= 32
@@ -248,7 +248,7 @@ static bool shm_may_destroy(struct ipc_namespace *ns, struct shmid_kernel *shp)
  */
 static void shm_close(struct vm_area_struct *vma)
 {
-	struct file * file = vma->vm_file;
+	struct file *file = vma->vm_file;
 	struct shm_file_data *sfd = shm_file_data(file);
 	struct shmid_kernel *shp;
 	struct ipc_namespace *ns = sfd->ns;
@@ -379,7 +379,7 @@ static struct mempolicy *shm_get_policy(struct vm_area_struct *vma,
 }
 #endif
 
-static int shm_mmap(struct file * file, struct vm_area_struct * vma)
+static int shm_mmap(struct file *file, struct vm_area_struct *vma)
 {
 	struct shm_file_data *sfd = shm_file_data(file);
 	int ret;
@@ -486,7 +486,7 @@ static int newseg(struct ipc_namespace *ns, struct ipc_params *params)
 	int error;
 	struct shmid_kernel *shp;
 	size_t numpages = (size + PAGE_SIZE - 1) >> PAGE_SHIFT;
-	struct file * file;
+	struct file *file;
 	char name[13];
 	int id;
 	vm_flags_t acctflag = 0;
@@ -512,7 +512,7 @@ static int newseg(struct ipc_namespace *ns, struct ipc_params *params)
 		return error;
 	}
 
-	sprintf (name, "SYSV%08x", key);
+	sprintf(name, "SYSV%08x", key);
 	if (shmflg & SHM_HUGETLB) {
 		struct hstate *hs;
 		size_t hugesize;
@@ -628,7 +628,7 @@ SYSCALL_DEFINE3(shmget, key_t, key, size_t, size, int, shmflg)
 
 static inline unsigned long copy_shmid_to_user(void __user *buf, struct shmid64_ds *in, int version)
 {
-	switch(version) {
+	switch (version) {
 	case IPC_64:
 		return copy_to_user(buf, in, sizeof(*in));
 	case IPC_OLD:
@@ -655,7 +655,7 @@ static inline unsigned long copy_shmid_to_user(void __user *buf, struct shmid64_
 static inline unsigned long
 copy_shmid_from_user(struct shmid64_ds *out, void __user *buf, int version)
 {
-	switch(version) {
+	switch (version) {
 	case IPC_64:
 		if (copy_from_user(out, buf, sizeof(*out)))
 			return -EFAULT;
@@ -680,14 +680,14 @@ copy_shmid_from_user(struct shmid64_ds *out, void __user *buf, int version)
 
 static inline unsigned long copy_shminfo_to_user(void __user *buf, struct shminfo64 *in, int version)
 {
-	switch(version) {
+	switch (version) {
 	case IPC_64:
 		return copy_to_user(buf, in, sizeof(*in));
 	case IPC_OLD:
 	    {
 		struct shminfo out;
 
-		if(in->shmmax > INT_MAX)
+		if (in->shmmax > INT_MAX)
 			out.shmmax = INT_MAX;
 		else
 			out.shmmax = (int)in->shmmax;
@@ -846,14 +846,14 @@ static int shmctl_nolock(struct ipc_namespace *ns, int shmid,
 		shminfo.shmall = ns->shm_ctlall;
 
 		shminfo.shmmin = SHMMIN;
-		if(copy_shminfo_to_user (buf, &shminfo, version))
+		if (copy_shminfo_to_user(buf, &shminfo, version))
 			return -EFAULT;
 
 		down_read(&shm_ids(ns).rwsem);
 		err = ipc_get_maxid(&shm_ids(ns));
 		up_read(&shm_ids(ns).rwsem);
 
-		if(err<0)
+		if (err < 0)
 			err = 0;
 		goto out;
 	}
@@ -864,7 +864,7 @@ static int shmctl_nolock(struct ipc_namespace *ns, int shmid,
 		memset(&shm_info, 0, sizeof(shm_info));
 		down_read(&shm_ids(ns).rwsem);
 		shm_info.used_ids = shm_ids(ns).in_use;
-		shm_get_stat (ns, &shm_info.shm_rss, &shm_info.shm_swp);
+		shm_get_stat(ns, &shm_info.shm_rss, &shm_info.shm_swp);
 		shm_info.shm_tot = ns->shm_tot;
 		shm_info.swap_attempts = 0;
 		shm_info.swap_successes = 0;
@@ -1047,7 +1047,7 @@ long do_shmat(int shmid, char __user *shmaddr, int shmflg, ulong *raddr,
 	struct shmid_kernel *shp;
 	unsigned long addr;
 	unsigned long size;
-	struct file * file;
+	struct file *file;
 	int    err;
 	unsigned long flags;
 	unsigned long prot;

ipc/util.c

@@ -270,7 +270,7 @@ int ipc_get_maxid(struct ipc_ids *ids)
  *
  *	Called with writer ipc_ids.rwsem held.
  */
-int ipc_addid(struct ipc_ids* ids, struct kern_ipc_perm* new, int size)
+int ipc_addid(struct ipc_ids *ids, struct kern_ipc_perm *new, int size)
 {
 	kuid_t euid;
 	kgid_t egid;
@@ -463,7 +463,7 @@ void ipc_rmid(struct ipc_ids *ids, struct kern_ipc_perm *ipcp)
 void *ipc_alloc(int size)
 {
 	void *out;
-	if(size > PAGE_SIZE)
+	if (size > PAGE_SIZE)
 		out = vmalloc(size);
 	else
 		out = kmalloc(size, GFP_KERNEL);
@@ -479,9 +479,9 @@ void *ipc_alloc(int size)
  *	used in the allocation call.
  */
 
-void ipc_free(void* ptr, int size)
+void ipc_free(void *ptr, int size)
 {
-	if(size > PAGE_SIZE)
+	if (size > PAGE_SIZE)
 		vfree(ptr);
 	else
 		kfree(ptr);
@@ -581,7 +581,7 @@ int ipcperms(struct ipc_namespace *ns, struct kern_ipc_perm *ipcp, short flag)
  */
  
 
-void kernel_to_ipc64_perm (struct kern_ipc_perm *in, struct ipc64_perm *out)
+void kernel_to_ipc64_perm(struct kern_ipc_perm *in, struct ipc64_perm *out)
 {
 	out->key	= in->key;
 	out->uid	= from_kuid_munged(current_user_ns(), in->uid);
@@ -601,7 +601,7 @@ void kernel_to_ipc64_perm (struct kern_ipc_perm *in, struct ipc64_perm *out)
  *	object and store it into the @out pointer.
  */
  
-void ipc64_perm_to_ipc_perm (struct ipc64_perm *in, struct ipc_perm *out)
+void ipc64_perm_to_ipc_perm(struct ipc64_perm *in, struct ipc_perm *out)
 {
 	out->key	= in->key;
 	SET_UID(out->uid, in->uid);
@@ -787,7 +787,7 @@ struct kern_ipc_perm *ipcctl_pre_down_nolock(struct ipc_namespace *ns,
  *	just the command code.
  */
  
-int ipc_parse_version (int *cmd)
+int ipc_parse_version(int *cmd)
 {
 	if (*cmd & IPC_64) {
 		*cmd ^= IPC_64;
@@ -824,7 +824,7 @@ static struct kern_ipc_perm *sysvipc_find_ipc(struct ipc_ids *ids, loff_t pos,
 	if (total >= ids->in_use)
 		return NULL;
 
-	for ( ; pos < IPCMNI; pos++) {
+	for (; pos < IPCMNI; pos++) {
 		ipc = idr_find(&ids->ipcs_idr, pos);
 		if (ipc != NULL) {
 			*new_pos = pos + 1;

ipc/util.h

@@ -15,9 +15,9 @@
 
 #define SEQ_MULTIPLIER	(IPCMNI)
 
-void sem_init (void);
-void msg_init (void);
-void shm_init (void);
+void sem_init(void);
+void msg_init(void);
+void shm_init(void);
 
 struct ipc_namespace;
 
@@ -116,8 +116,8 @@ int ipcperms(struct ipc_namespace *ns, struct kern_ipc_perm *ipcp, short flg);
 /* for rare, potentially huge allocations.
  * both function can sleep
  */
-void* ipc_alloc(int size);
-void ipc_free(void* ptr, int size);
+void *ipc_alloc(int size);
+void ipc_free(void *ptr, int size);
 
 /*
  * For allocation that need to be freed by RCU.
@@ -125,7 +125,7 @@ void ipc_free(void* ptr, int size);
  * getref increases the refcount, the putref call that reduces the recount
  * to 0 schedules the rcu destruction. Caller must guarantee locking.
  */
-void* ipc_rcu_alloc(int size);
+void *ipc_rcu_alloc(int size);
 int ipc_rcu_getref(void *ptr);
 void ipc_rcu_putref(void *ptr, void (*func)(struct rcu_head *head));
 void ipc_rcu_free(struct rcu_head *head);
@@ -144,7 +144,7 @@ struct kern_ipc_perm *ipcctl_pre_down_nolock(struct ipc_namespace *ns,
   /* On IA-64, we always use the "64-bit version" of the IPC structures.  */ 
 # define ipc_parse_version(cmd)	IPC_64
 #else
-int ipc_parse_version (int *cmd);
+int ipc_parse_version(int *cmd);
 #endif
 
 extern void free_msg(struct msg_msg *msg);