1 files changed, 44 insertions, 46 deletions

diff --git a/kernel/sys.c b/kernel/sys.c
index d356d79e84ac..f145c415bc16 100644
--- a/kernel/sys.c
+++ b/kernel/sys.c
@@ -33,6 +33,7 @@
 #include <linux/task_io_accounting_ops.h>
 #include <linux/seccomp.h>
 #include <linux/cpu.h>
+#include <linux/ptrace.h>
 
 #include <linux/compat.h>
 #include <linux/syscalls.h>
@@ -142,7 +143,7 @@ out:
         return error;
 }
 
-asmlinkage long sys_setpriority(int which, int who, int niceval)
+SYSCALL_DEFINE3(setpriority, int, which, int, who, int, niceval)
 {
         struct task_struct *g, *p;
         struct user_struct *user;
@@ -207,7 +208,7 @@ out:
  * has been offset by 20 (ie it returns 40..1 instead of -20..19)
  * to stay compatible.
  */
-asmlinkage long sys_getpriority(int which, int who)
+SYSCALL_DEFINE2(getpriority, int, which, int, who)
 {
         struct task_struct *g, *p;
         struct user_struct *user;
@@ -354,7 +355,8 @@ EXPORT_SYMBOL_GPL(kernel_power_off);
  *
  * reboot doesn't sync: do that yourself before calling this.
  */
-asmlinkage long sys_reboot(int magic1, int magic2, unsigned int cmd, void __user * arg)
+SYSCALL_DEFINE4(reboot, int, magic1, int, magic2, unsigned int, cmd,
+                void __user *, arg)
 {
         char buffer[256];
 
@@ -477,7 +479,7 @@ void ctrl_alt_del(void)
  * SMP: There are not races, the GIDs are checked only by filesystem
  *      operations (as far as semantic preservation is concerned).
  */
-asmlinkage long sys_setregid(gid_t rgid, gid_t egid)
+SYSCALL_DEFINE2(setregid, gid_t, rgid, gid_t, egid)
 {
         const struct cred *old;
         struct cred *new;
@@ -528,7 +530,7 @@ error:
  *
  * SMP: Same implicit races as above.
  */
-asmlinkage long sys_setgid(gid_t gid)
+SYSCALL_DEFINE1(setgid, gid_t, gid)
 {
         const struct cred *old;
         struct cred *new;
@@ -596,7 +598,7 @@ static int set_user(struct cred *new)
  * 100% compatible with BSD.  A program which uses just setuid() will be
  * 100% compatible with POSIX with saved IDs. 
  */
-asmlinkage long sys_setreuid(uid_t ruid, uid_t euid)
+SYSCALL_DEFINE2(setreuid, uid_t, ruid, uid_t, euid)
 {
         const struct cred *old;
         struct cred *new;
@@ -660,7 +662,7 @@ error:
  * will allow a root program to temporarily drop privileges and be able to
  * regain them by swapping the real and effective uid.  
  */
-asmlinkage long sys_setuid(uid_t uid)
+SYSCALL_DEFINE1(setuid, uid_t, uid)
 {
         const struct cred *old;
         struct cred *new;
@@ -704,7 +706,7 @@ error:
  * This function implements a generic ability to update ruid, euid,
  * and suid.  This allows you to implement the 4.4 compatible seteuid().
  */
-asmlinkage long sys_setresuid(uid_t ruid, uid_t euid, uid_t suid)
+SYSCALL_DEFINE3(setresuid, uid_t, ruid, uid_t, euid, uid_t, suid)
 {
         const struct cred *old;
         struct cred *new;
@@ -755,7 +757,7 @@ error:
         return retval;
 }
 
-asmlinkage long sys_getresuid(uid_t __user *ruid, uid_t __user *euid, uid_t __user *suid)
+SYSCALL_DEFINE3(getresuid, uid_t __user *, ruid, uid_t __user *, euid, uid_t __user *, suid)
 {
         const struct cred *cred = current_cred();
         int retval;
@@ -770,7 +772,7 @@ asmlinkage long sys_getresuid(uid_t __user *ruid, uid_t __user *euid, uid_t __us
 /*
  * Same as above, but for rgid, egid, sgid.
  */
-asmlinkage long sys_setresgid(gid_t rgid, gid_t egid, gid_t sgid)
+SYSCALL_DEFINE3(setresgid, gid_t, rgid, gid_t, egid, gid_t, sgid)
 {
         const struct cred *old;
         struct cred *new;
@@ -813,7 +815,7 @@ error:
         return retval;
 }
 
-asmlinkage long sys_getresgid(gid_t __user *rgid, gid_t __user *egid, gid_t __user *sgid)
+SYSCALL_DEFINE3(getresgid, gid_t __user *, rgid, gid_t __user *, egid, gid_t __user *, sgid)
 {
         const struct cred *cred = current_cred();
         int retval;
@@ -832,7 +834,7 @@ asmlinkage long sys_getresgid(gid_t __user *rgid, gid_t __user *egid, gid_t __us
  * whatever uid it wants to). It normally shadows "euid", except when
  * explicitly set by setfsuid() or for access..
  */
-asmlinkage long sys_setfsuid(uid_t uid)
+SYSCALL_DEFINE1(setfsuid, uid_t, uid)
 {
         const struct cred *old;
         struct cred *new;
@@ -869,7 +871,7 @@ change_okay:
 /*
  * Samma på svenska..
  */
-asmlinkage long sys_setfsgid(gid_t gid)
+SYSCALL_DEFINE1(setfsgid, gid_t, gid)
 {
         const struct cred *old;
         struct cred *new;
@@ -918,7 +920,7 @@ void do_sys_times(struct tms *tms)
         tms->tms_cstime = cputime_to_clock_t(cstime);
 }
 
-asmlinkage long sys_times(struct tms __user * tbuf)
+SYSCALL_DEFINE1(times, struct tms __user *, tbuf)
 {
         if (tbuf) {
                 struct tms tmp;
@@ -927,6 +929,7 @@ asmlinkage long sys_times(struct tms __user * tbuf)
                 if (copy_to_user(tbuf, &tmp, sizeof(struct tms)))
                         return -EFAULT;
         }
+        force_successful_syscall_return();
         return (long) jiffies_64_to_clock_t(get_jiffies_64());
 }
 
@@ -942,7 +945,7 @@ asmlinkage long sys_times(struct tms __user * tbuf)
  * Auch. Had to add the 'did_exec' flag to conform completely to POSIX.
  * LBT 04.03.94
  */
-asmlinkage long sys_setpgid(pid_t pid, pid_t pgid)
+SYSCALL_DEFINE2(setpgid, pid_t, pid, pid_t, pgid)
 {
         struct task_struct *p;
         struct task_struct *group_leader = current->group_leader;
@@ -1013,7 +1016,7 @@ out:
         return err;
 }
 
-asmlinkage long sys_getpgid(pid_t pid)
+SYSCALL_DEFINE1(getpgid, pid_t, pid)
 {
         struct task_struct *p;
         struct pid *grp;
@@ -1043,14 +1046,14 @@ out:
 
 #ifdef __ARCH_WANT_SYS_GETPGRP
 
-asmlinkage long sys_getpgrp(void)
+SYSCALL_DEFINE0(getpgrp)
 {
         return sys_getpgid(0);
 }
 
 #endif
 
-asmlinkage long sys_getsid(pid_t pid)
+SYSCALL_DEFINE1(getsid, pid_t, pid)
 {
         struct task_struct *p;
         struct pid *sid;
@@ -1078,7 +1081,7 @@ out:
         return retval;
 }
 
-asmlinkage long sys_setsid(void)
+SYSCALL_DEFINE0(setsid)
 {
         struct task_struct *group_leader = current->group_leader;
         struct pid *sid = task_pid(group_leader);
@@ -1309,7 +1312,7 @@ int set_current_groups(struct group_info *group_info)
 
 EXPORT_SYMBOL(set_current_groups);
 
-asmlinkage long sys_getgroups(int gidsetsize, gid_t __user *grouplist)
+SYSCALL_DEFINE2(getgroups, int, gidsetsize, gid_t __user *, grouplist)
 {
         const struct cred *cred = current_cred();
         int i;
@@ -1338,7 +1341,7 @@ out:
  *      without another task interfering.
  */
  
-asmlinkage long sys_setgroups(int gidsetsize, gid_t __user *grouplist)
+SYSCALL_DEFINE2(setgroups, int, gidsetsize, gid_t __user *, grouplist)
 {
         struct group_info *group_info;
         int retval;
@@ -1392,7 +1395,7 @@ EXPORT_SYMBOL(in_egroup_p);
 
 DECLARE_RWSEM(uts_sem);
 
-asmlinkage long sys_newuname(struct new_utsname __user * name)
+SYSCALL_DEFINE1(newuname, struct new_utsname __user *, name)
 {
         int errno = 0;
 
@@ -1403,7 +1406,7 @@ asmlinkage long sys_newuname(struct new_utsname __user * name)
         return errno;
 }
 
-asmlinkage long sys_sethostname(char __user *name, int len)
+SYSCALL_DEFINE2(sethostname, char __user *, name, int, len)
 {
         int errno;
         char tmp[__NEW_UTS_LEN];
@@ -1427,7 +1430,7 @@ asmlinkage long sys_sethostname(char __user *name, int len)
 
 #ifdef __ARCH_WANT_SYS_GETHOSTNAME
 
-asmlinkage long sys_gethostname(char __user *name, int len)
+SYSCALL_DEFINE2(gethostname, char __user *, name, int, len)
 {
         int i, errno;
         struct new_utsname *u;
@@ -1452,7 +1455,7 @@ asmlinkage long sys_gethostname(char __user *name, int len)
  * Only setdomainname; getdomainname can be implemented by calling
  * uname()
  */
-asmlinkage long sys_setdomainname(char __user *name, int len)
+SYSCALL_DEFINE2(setdomainname, char __user *, name, int, len)
 {
         int errno;
         char tmp[__NEW_UTS_LEN];
@@ -1475,7 +1478,7 @@ asmlinkage long sys_setdomainname(char __user *name, int len)
         return errno;
 }
 
-asmlinkage long sys_getrlimit(unsigned int resource, struct rlimit __user *rlim)
+SYSCALL_DEFINE2(getrlimit, unsigned int, resource, struct rlimit __user *, rlim)
 {
         if (resource >= RLIM_NLIMITS)
                 return -EINVAL;
@@ -1494,7 +1497,8 @@ asmlinkage long sys_getrlimit(unsigned int resource, struct rlimit __user *rlim)
  *      Back compatibility for getrlimit. Needed for some apps.
  */
  
-asmlinkage long sys_old_getrlimit(unsigned int resource, struct rlimit __user *rlim)
+SYSCALL_DEFINE2(old_getrlimit, unsigned int, resource,
+                struct rlimit __user *, rlim)
 {
         struct rlimit x;
         if (resource >= RLIM_NLIMITS)
@@ -1512,7 +1516,7 @@ asmlinkage long sys_old_getrlimit(unsigned int resource, struct rlimit __user *r
 
 #endif
 
-asmlinkage long sys_setrlimit(unsigned int resource, struct rlimit __user *rlim)
+SYSCALL_DEFINE2(setrlimit, unsigned int, resource, struct rlimit __user *, rlim)
 {
         struct rlimit new_rlim, *old_rlim;
         int retval;
@@ -1521,22 +1525,14 @@ asmlinkage long sys_setrlimit(unsigned int resource, struct rlimit __user *rlim)
                 return -EINVAL;
         if (copy_from_user(&new_rlim, rlim, sizeof(*rlim)))
                 return -EFAULT;
+        if (new_rlim.rlim_cur > new_rlim.rlim_max)
+                return -EINVAL;
         old_rlim = current->signal->rlim + resource;
         if ((new_rlim.rlim_max > old_rlim->rlim_max) &&
             !capable(CAP_SYS_RESOURCE))
                 return -EPERM;
-
-        if (resource == RLIMIT_NOFILE) {
-                if (new_rlim.rlim_max == RLIM_INFINITY)
-                        new_rlim.rlim_max = sysctl_nr_open;
-                if (new_rlim.rlim_cur == RLIM_INFINITY)
-                        new_rlim.rlim_cur = sysctl_nr_open;
-                if (new_rlim.rlim_max > sysctl_nr_open)
-                        return -EPERM;
-        }
-
-        if (new_rlim.rlim_cur > new_rlim.rlim_max)
-                return -EINVAL;
+        if (resource == RLIMIT_NOFILE && new_rlim.rlim_max > sysctl_nr_open)
+                return -EPERM;
 
         retval = security_task_setrlimit(resource, &new_rlim);
         if (retval)
@@ -1627,6 +1623,8 @@ static void k_getrusage(struct task_struct *p, int who, struct rusage *r)
         utime = stime = cputime_zero;
 
         if (who == RUSAGE_THREAD) {
+                utime = task_utime(current);
+                stime = task_stime(current);
                 accumulate_thread_rusage(p, r);
                 goto out;
         }
@@ -1683,7 +1681,7 @@ int getrusage(struct task_struct *p, int who, struct rusage __user *ru)
         return copy_to_user(ru, &r, sizeof(r)) ? -EFAULT : 0;
 }
 
-asmlinkage long sys_getrusage(int who, struct rusage __user *ru)
+SYSCALL_DEFINE2(getrusage, int, who, struct rusage __user *, ru)
 {
         if (who != RUSAGE_SELF && who != RUSAGE_CHILDREN &&
             who != RUSAGE_THREAD)
@@ -1691,14 +1689,14 @@ asmlinkage long sys_getrusage(int who, struct rusage __user *ru)
         return getrusage(current, who, ru);
 }
 
-asmlinkage long sys_umask(int mask)
+SYSCALL_DEFINE1(umask, int, mask)
 {
         mask = xchg(&current->fs->umask, mask & S_IRWXUGO);
         return mask;
 }
 
-asmlinkage long sys_prctl(int option, unsigned long arg2, unsigned long arg3,
-                          unsigned long arg4, unsigned long arg5)
+SYSCALL_DEFINE5(prctl, int, option, unsigned long, arg2, unsigned long, arg3,
+                unsigned long, arg4, unsigned long, arg5)
 {
         struct task_struct *me = current;
         unsigned char comm[sizeof(me->comm)];
@@ -1811,8 +1809,8 @@ asmlinkage long sys_prctl(int option, unsigned long arg2, unsigned long arg3,
         return error;
 }
 
-asmlinkage long sys_getcpu(unsigned __user *cpup, unsigned __user *nodep,
-                           struct getcpu_cache __user *unused)
+SYSCALL_DEFINE3(getcpu, unsigned __user *, cpup, unsigned __user *, nodep,
+                struct getcpu_cache __user *, unused)
 {
         int err = 0;
         int cpu = raw_smp_processor_id();