Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs
[sfrench/cifs-2.6.git] / arch / alpha / kernel / osf_sys.c
index ac2ae13bd045481922e444b33cb3f80e7355c9c1..14db93e4c8a83662d459a6ff1a818318dbc61eeb 100644 (file)
@@ -793,8 +793,7 @@ SYSCALL_DEFINE5(osf_getsysinfo, unsigned long, op, void __user *, buffer,
        case GSI_UACPROC:
                if (nbytes < sizeof(unsigned int))
                        return -EINVAL;
-               w = (current_thread_info()->flags >> ALPHA_UAC_SHIFT) &
-                       UAC_BITMASK;
+               w = current_thread_info()->status & UAC_BITMASK;
                if (put_user(w, (unsigned int __user *)buffer))
                        return -EFAULT;
                return 1;
@@ -904,24 +903,20 @@ SYSCALL_DEFINE5(osf_setsysinfo, unsigned long, op, void __user *, buffer,
                break;
 
        case SSI_NVPAIRS: {
-               unsigned long v, w, i;
-               unsigned int old, new;
+               unsigned __user *p = buffer;
+               unsigned i;
                
-               for (i = 0; i < nbytes; ++i) {
+               for (i = 0, p = buffer; i < nbytes; ++i, p += 2) {
+                       unsigned v, w, status;
 
-                       if (get_user(v, 2*i + (unsigned int __user *)buffer))
-                               return -EFAULT;
-                       if (get_user(w, 2*i + 1 + (unsigned int __user *)buffer))
+                       if (get_user(v, p) || get_user(w, p + 1))
                                return -EFAULT;
                        switch (v) {
                        case SSIN_UACPROC:
-                       again:
-                               old = current_thread_info()->flags;
-                               new = old & ~(UAC_BITMASK << ALPHA_UAC_SHIFT);
-                               new = new | (w & UAC_BITMASK) << ALPHA_UAC_SHIFT;
-                               if (cmpxchg(&current_thread_info()->flags,
-                                           old, new) != old)
-                                       goto again;
+                               w &= UAC_BITMASK;
+                               status = current_thread_info()->status;
+                               status = (status & ~UAC_BITMASK) | w;
+                               current_thread_info()->status = status;
                                break;
  
                        default: