asmlinkage long
ia64_getpriority (int which, int who)
{
long prio;
prio = sys_getpriority(which, who);
if (prio >= 0) {
force_successful_syscall_return();
prio = 20 - prio;
}
return prio;
}
/*
* Alpha syscall convention has no problem returning negative
* values:
*/
asmlinkage int osf_getpriority(int which, int who, int a2, int a3, int a4,
int a5, struct pt_regs regs)
{
extern int sys_getpriority(int, int);
int prio;
prio = sys_getpriority(which, who);
if (prio < 0)
return prio;
regs.r0 = 0; /* special return: no errors */
return 20 - prio;
}
asmlinkage long
ia64_getpriority (int which, int who, long arg2, long arg3, long arg4, long arg5, long arg6,
long arg7, long stack)
{
struct pt_regs *regs = (struct pt_regs *) &stack;
extern long sys_getpriority (int, int);
long prio;
prio = sys_getpriority(which, who);
if (prio >= 0) {
regs->r8 = 0; /* ensure negative priority is not mistaken as error code */
prio = 20 - prio;
}
return prio;
}
int
linux32_sys_getpriority(struct lwp *l, const struct linux32_sys_getpriority_args *uap, register_t *retval)
{
/* {
syscallarg(int) which;
syscallarg(int) who;
} */
struct sys_getpriority_args bsa;
int error;
SCARG(&bsa, which) = SCARG(uap, which);
SCARG(&bsa, who) = SCARG(uap, who);
if ((error = sys_getpriority(l, &bsa, retval)))
return error;
*retval = NZERO - *retval;
return 0;
}
long compat_sys_getpriority(u32 which, u32 who)
{
/* sign extend which and who */
return sys_getpriority((int)which, (int)who);
}
long compat_sys_getpriority(u32 which, u32 who)
{
return sys_getpriority((int)which, (int)who);
}
