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-rw-r--r--arch/mips/kernel/sysirix.c60
1 files changed, 27 insertions, 33 deletions
diff --git a/arch/mips/kernel/sysirix.c b/arch/mips/kernel/sysirix.c
index 7ae4af47697..ed7c0e3c2f8 100644
--- a/arch/mips/kernel/sysirix.c
+++ b/arch/mips/kernel/sysirix.c
@@ -73,32 +73,30 @@ asmlinkage int irix_sysmp(struct pt_regs *regs)
}
/* The prctl commands. */
-#define PR_MAXPROCS 1 /* Tasks/user. */
-#define PR_ISBLOCKED 2 /* If blocked, return 1. */
-#define PR_SETSTACKSIZE 3 /* Set largest task stack size. */
-#define PR_GETSTACKSIZE 4 /* Get largest task stack size. */
-#define PR_MAXPPROCS 5 /* Num parallel tasks. */
-#define PR_UNBLKONEXEC 6 /* When task exec/exit's, unblock. */
-#define PR_SETEXITSIG 8 /* When task exit's, set signal. */
-#define PR_RESIDENT 9 /* Make task unswappable. */
-#define PR_ATTACHADDR 10 /* (Re-)Connect a vma to a task. */
-#define PR_DETACHADDR 11 /* Disconnect a vma from a task. */
-#define PR_TERMCHILD 12 /* When parent sleeps with fishes, kill child. */
-#define PR_GETSHMASK 13 /* Get the sproc() share mask. */
-#define PR_GETNSHARE 14 /* Number of share group members. */
-#define PR_COREPID 15 /* Add task pid to name when it core. */
-#define PR_ATTACHADDRPERM 16 /* (Re-)Connect vma, with specified prot. */
-#define PR_PTHREADEXIT 17 /* Kill a pthread without prejudice. */
-
-asmlinkage int irix_prctl(struct pt_regs *regs)
-{
- unsigned long cmd;
- int error = 0, base = 0;
+#define PR_MAXPROCS 1 /* Tasks/user. */
+#define PR_ISBLOCKED 2 /* If blocked, return 1. */
+#define PR_SETSTACKSIZE 3 /* Set largest task stack size. */
+#define PR_GETSTACKSIZE 4 /* Get largest task stack size. */
+#define PR_MAXPPROCS 5 /* Num parallel tasks. */
+#define PR_UNBLKONEXEC 6 /* When task exec/exit's, unblock. */
+#define PR_SETEXITSIG 8 /* When task exit's, set signal. */
+#define PR_RESIDENT 9 /* Make task unswappable. */
+#define PR_ATTACHADDR 10 /* (Re-)Connect a vma to a task. */
+#define PR_DETACHADDR 11 /* Disconnect a vma from a task. */
+#define PR_TERMCHILD 12 /* Kill child if the parent dies. */
+#define PR_GETSHMASK 13 /* Get the sproc() share mask. */
+#define PR_GETNSHARE 14 /* Number of share group members. */
+#define PR_COREPID 15 /* Add task pid to name when it core. */
+#define PR_ATTACHADDRPERM 16 /* (Re-)Connect vma, with specified prot. */
+#define PR_PTHREADEXIT 17 /* Kill a pthread, only for IRIX 6.[234] */
+
+asmlinkage int irix_prctl(unsigned option, ...)
+{
+ va_list args;
+ int error = 0;
- if (regs->regs[2] == 1000)
- base = 1;
- cmd = regs->regs[base + 4];
- switch (cmd) {
+ va_start(args, option);
+ switch (option) {
case PR_MAXPROCS:
printk("irix_prctl[%s:%d]: Wants PR_MAXPROCS\n",
current->comm, current->pid);
@@ -111,7 +109,7 @@ asmlinkage int irix_prctl(struct pt_regs *regs)
printk("irix_prctl[%s:%d]: Wants PR_ISBLOCKED\n",
current->comm, current->pid);
read_lock(&tasklist_lock);
- task = find_task_by_pid(regs->regs[base + 5]);
+ task = find_task_by_pid(va_arg(args, pid_t));
error = -ESRCH;
if (error)
error = (task->run_list.next != NULL);
@@ -121,7 +119,7 @@ asmlinkage int irix_prctl(struct pt_regs *regs)
}
case PR_SETSTACKSIZE: {
- long value = regs->regs[base + 5];
+ long value = va_arg(args, long);
printk("irix_prctl[%s:%d]: Wants PR_SETSTACKSIZE<%08lx>\n",
current->comm, current->pid, (unsigned long) value);
@@ -222,17 +220,13 @@ asmlinkage int irix_prctl(struct pt_regs *regs)
error = -EINVAL;
break;
- case PR_PTHREADEXIT:
- printk("irix_prctl[%s:%d]: Wants PR_PTHREADEXIT\n",
- current->comm, current->pid);
- do_exit(regs->regs[base + 5]);
-
default:
printk("irix_prctl[%s:%d]: Non-existant opcode %d\n",
- current->comm, current->pid, (int)cmd);
+ current->comm, current->pid, option);
error = -EINVAL;
break;
}
+ va_end(args);
return error;
}