     long     , -
  ,  sizeof (int) == sizeof (long).

     ,    int    -
.

  

 (opaque)      ,    
  ,  .     ,  
     .    
 -     .  , 
      typedef,    
  ,          
  .        
 ,    .  -
    pid_t,      
.      ,    -
,         ,   
int.         ,   
   ,      .    
  :   Unix-    pid_t
   short.

         atomic_t.   -
   9, "   ",     -
 ,      .   
   int,      -
,          ,
   .     
 ,      32 ,    
SPARC.

         dev_t, gid_t  uid_t. 
        .

  ,       -
   .

         .

     ,     -
     .

  

   ,  ,     
,      .     
  jiffies   flags,    -
.         unsigned
long.

394  19