Merge branch 'linus' into core/softlockup

4 files changed, 47 insertions, 33 deletions

diff --git a/ipc/mqueue.c b/ipc/mqueue.c
index 23fdb8492b8e..54b4077fed79 100644
--- a/ipc/mqueue.c
+++ b/ipc/mqueue.c
@@ -650,8 +650,8 @@ static struct file *do_open(struct dentry *dentry, int oflag)
         return dentry_open(dentry, mqueue_mnt, oflag, cred);
 }
 
-asmlinkage long sys_mq_open(const char __user *u_name, int oflag, mode_t mode,
-                                struct mq_attr __user *u_attr)
+SYSCALL_DEFINE4(mq_open, const char __user *, u_name, int, oflag, mode_t, mode,
+                struct mq_attr __user *, u_attr)
 {
         struct dentry *dentry;
         struct file *filp;
@@ -721,7 +721,7 @@ out_putname:
         return fd;
 }
 
-asmlinkage long sys_mq_unlink(const char __user *u_name)
+SYSCALL_DEFINE1(mq_unlink, const char __user *, u_name)
 {
         int err;
         char *name;
@@ -814,9 +814,9 @@ static inline void pipelined_receive(struct mqueue_inode_info *info)
         sender->state = STATE_READY;
 }
 
-asmlinkage long sys_mq_timedsend(mqd_t mqdes, const char __user *u_msg_ptr,
-        size_t msg_len, unsigned int msg_prio,
-        const struct timespec __user *u_abs_timeout)
+SYSCALL_DEFINE5(mq_timedsend, mqd_t, mqdes, const char __user *, u_msg_ptr,
+                size_t, msg_len, unsigned int, msg_prio,
+                const struct timespec __user *, u_abs_timeout)
 {
         struct file *filp;
         struct inode *inode;
@@ -907,9 +907,9 @@ out:
         return ret;
 }
 
-asmlinkage ssize_t sys_mq_timedreceive(mqd_t mqdes, char __user *u_msg_ptr,
-        size_t msg_len, unsigned int __user *u_msg_prio,
-        const struct timespec __user *u_abs_timeout)
+SYSCALL_DEFINE5(mq_timedreceive, mqd_t, mqdes, char __user *, u_msg_ptr,
+                size_t, msg_len, unsigned int __user *, u_msg_prio,
+                const struct timespec __user *, u_abs_timeout)
 {
         long timeout;
         ssize_t ret;
@@ -997,8 +997,8 @@ out:
  * and he isn't currently owner of notification, will be silently discarded.
  * It isn't explicitly defined in the POSIX.
  */
-asmlinkage long sys_mq_notify(mqd_t mqdes,
-                                const struct sigevent __user *u_notification)
+SYSCALL_DEFINE2(mq_notify, mqd_t, mqdes,
+                const struct sigevent __user *, u_notification)
 {
         int ret;
         struct file *filp;
@@ -1123,9 +1123,9 @@ out:
         return ret;
 }
 
-asmlinkage long sys_mq_getsetattr(mqd_t mqdes,
-                        const struct mq_attr __user *u_mqstat,
-                        struct mq_attr __user *u_omqstat)
+SYSCALL_DEFINE3(mq_getsetattr, mqd_t, mqdes,
+                const struct mq_attr __user *, u_mqstat,
+                struct mq_attr __user *, u_omqstat)
 {
         int ret;
         struct mq_attr mqstat, omqstat;
diff --git a/ipc/msg.c b/ipc/msg.c
index b4eee1c6101d..2ceab7f12fcb 100644
--- a/ipc/msg.c
+++ b/ipc/msg.c
@@ -309,7 +309,7 @@ static inline int msg_security(struct kern_ipc_perm *ipcp, int msgflg)
         return security_msg_queue_associate(msq, msgflg);
 }
 
-asmlinkage long sys_msgget(key_t key, int msgflg)
+SYSCALL_DEFINE2(msgget, key_t, key, int, msgflg)
 {
         struct ipc_namespace *ns;
         struct ipc_ops msg_ops;
@@ -466,7 +466,7 @@ out_up:
         return err;
 }
 
-asmlinkage long sys_msgctl(int msqid, int cmd, struct msqid_ds __user *buf)
+SYSCALL_DEFINE3(msgctl, int, msqid, int, cmd, struct msqid_ds __user *, buf)
 {
         struct msg_queue *msq;
         int err, version;
@@ -723,8 +723,8 @@ out_free:
         return err;
 }
 
-asmlinkage long
-sys_msgsnd(int msqid, struct msgbuf __user *msgp, size_t msgsz, int msgflg)
+SYSCALL_DEFINE4(msgsnd, int, msqid, struct msgbuf __user *, msgp, size_t, msgsz,
+                int, msgflg)
 {
         long mtype;
 
@@ -904,8 +904,8 @@ out_unlock:
         return msgsz;
 }
 
-asmlinkage long sys_msgrcv(int msqid, struct msgbuf __user *msgp, size_t msgsz,
-                           long msgtyp, int msgflg)
+SYSCALL_DEFINE5(msgrcv, int, msqid, struct msgbuf __user *, msgp, size_t, msgsz,
+                long, msgtyp, int, msgflg)
 {
         long err, mtype;
 
diff --git a/ipc/sem.c b/ipc/sem.c
index c68cd3f8f0c9..16a2189e96f9 100644
--- a/ipc/sem.c
+++ b/ipc/sem.c
@@ -308,7 +308,7 @@ static inline int sem_more_checks(struct kern_ipc_perm *ipcp,
         return 0;
 }
 
-asmlinkage long sys_semget(key_t key, int nsems, int semflg)
+SYSCALL_DEFINE3(semget, key_t, key, int, nsems, int, semflg)
 {
         struct ipc_namespace *ns;
         struct ipc_ops sem_ops;
@@ -887,7 +887,7 @@ out_up:
         return err;
 }
 
-asmlinkage long sys_semctl (int semid, int semnum, int cmd, union semun arg)
+SYSCALL_DEFINE(semctl)(int semid, int semnum, int cmd, union semun arg)
 {
         int err = -EINVAL;
         int version;
@@ -923,6 +923,13 @@ asmlinkage long sys_semctl (int semid, int semnum, int cmd, union semun arg)
                 return -EINVAL;
         }
 }
+#ifdef CONFIG_HAVE_SYSCALL_WRAPPERS
+asmlinkage long SyS_semctl(int semid, int semnum, int cmd, union semun arg)
+{
+        return SYSC_semctl((int) semid, (int) semnum, (int) cmd, arg);
+}
+SYSCALL_ALIAS(sys_semctl, SyS_semctl);
+#endif
 
 /* If the task doesn't already have a undo_list, then allocate one
  * here.  We guarantee there is only one thread using this undo list,
@@ -1048,8 +1055,8 @@ out:
         return un;
 }
 
-asmlinkage long sys_semtimedop(int semid, struct sembuf __user *tsops,
-                        unsigned nsops, const struct timespec __user *timeout)
+SYSCALL_DEFINE4(semtimedop, int, semid, struct sembuf __user *, tsops,
+                unsigned, nsops, const struct timespec __user *, timeout)
 {
         int error = -EINVAL;
         struct sem_array *sma;
@@ -1225,7 +1232,8 @@ out_free:
         return error;
 }
 
-asmlinkage long sys_semop (int semid, struct sembuf __user *tsops, unsigned nsops)
+SYSCALL_DEFINE3(semop, int, semid, struct sembuf __user *, tsops,
+                unsigned, nsops)
 {
         return sys_semtimedop(semid, tsops, nsops, NULL);
 }
diff --git a/ipc/shm.c b/ipc/shm.c
index d0ab5527bf45..05d51d2a792c 100644
--- a/ipc/shm.c
+++ b/ipc/shm.c
@@ -340,6 +340,7 @@ static int newseg(struct ipc_namespace *ns, struct ipc_params *params)
         struct file * file;
         char name[13];
         int id;
+        int acctflag = 0;
 
         if (size < SHMMIN || size > ns->shm_ctlmax)
                 return -EINVAL;
@@ -364,18 +365,19 @@ static int newseg(struct ipc_namespace *ns, struct ipc_params *params)
 
         sprintf (name, "SYSV%08x", key);
         if (shmflg & SHM_HUGETLB) {
-                /* hugetlb_file_setup takes care of mlock user accounting */
-                file = hugetlb_file_setup(name, size);
+                /* hugetlb_file_setup applies strict accounting */
+                if (shmflg & SHM_NORESERVE)
+                        acctflag = VM_NORESERVE;
+                file = hugetlb_file_setup(name, size, acctflag);
                 shp->mlock_user = current_user();
         } else {
-                int acctflag = VM_ACCOUNT;
                 /*
                  * Do not allow no accounting for OVERCOMMIT_NEVER, even
                  * if it's asked for.
                  */
                 if  ((shmflg & SHM_NORESERVE) &&
                                 sysctl_overcommit_memory != OVERCOMMIT_NEVER)
-                        acctflag = 0;
+                        acctflag = VM_NORESERVE;
                 file = shmem_file_setup(name, size, acctflag);
         }
         error = PTR_ERR(file);
@@ -440,7 +442,7 @@ static inline int shm_more_checks(struct kern_ipc_perm *ipcp,
         return 0;
 }
 
-asmlinkage long sys_shmget (key_t key, size_t size, int shmflg)
+SYSCALL_DEFINE3(shmget, key_t, key, size_t, size, int, shmflg)
 {
         struct ipc_namespace *ns;
         struct ipc_ops shm_ops;
@@ -565,11 +567,15 @@ static void shm_get_stat(struct ipc_namespace *ns, unsigned long *rss,
                         struct hstate *h = hstate_file(shp->shm_file);
                         *rss += pages_per_huge_page(h) * mapping->nrpages;
                 } else {
+#ifdef CONFIG_SHMEM
                         struct shmem_inode_info *info = SHMEM_I(inode);
                         spin_lock(&info->lock);
                         *rss += inode->i_mapping->nrpages;
                         *swp += info->swapped;
                         spin_unlock(&info->lock);
+#else
+                        *rss += inode->i_mapping->nrpages;
+#endif
                 }
 
                 total++;
@@ -621,7 +627,7 @@ out_up:
         return err;
 }
 
-asmlinkage long sys_shmctl(int shmid, int cmd, struct shmid_ds __user *buf)
+SYSCALL_DEFINE3(shmctl, int, shmid, int, cmd, struct shmid_ds __user *, buf)
 {
         struct shmid_kernel *shp;
         int err, version;
@@ -939,7 +945,7 @@ out_put_dentry:
         goto out_nattch;
 }
 
-asmlinkage long sys_shmat(int shmid, char __user *shmaddr, int shmflg)
+SYSCALL_DEFINE3(shmat, int, shmid, char __user *, shmaddr, int, shmflg)
 {
         unsigned long ret;
         long err;
@@ -955,7 +961,7 @@ asmlinkage long sys_shmat(int shmid, char __user *shmaddr, int shmflg)
  * detach and kill segment if marked destroyed.
  * The work is done in shm_close.
  */
-asmlinkage long sys_shmdt(char __user *shmaddr)
+SYSCALL_DEFINE1(shmdt, char __user *, shmaddr)
 {
         struct mm_struct *mm = current->mm;
         struct vm_area_struct *vma, *next;