5045 use atomic_{inc,dec}_* instead of atomic_add_*

*** 65,75 ****
  static uint32_t afd_maxfd;      /* # of entries in maximum allocated array */
  static uint32_t afd_alloc;      /* count of kmem_alloc()s */
  static uint32_t afd_free;       /* count of kmem_free()s */
  static uint32_t afd_wait;       /* count of waits on non-zero ref count */
  #define MAXFD(x)        (afd_maxfd = ((afd_maxfd >= (x))? afd_maxfd : (x)))
! #define COUNT(x)        atomic_add_32(&x, 1)
  
  #else   /* DEBUG */
  
  #define MAXFD(x)
  #define COUNT(x)
--- 65,75 ----
  static uint32_t afd_maxfd;      /* # of entries in maximum allocated array */
  static uint32_t afd_alloc;      /* count of kmem_alloc()s */
  static uint32_t afd_free;       /* count of kmem_free()s */
  static uint32_t afd_wait;       /* count of waits on non-zero ref count */
  #define MAXFD(x)        (afd_maxfd = ((afd_maxfd >= (x))? afd_maxfd : (x)))
! #define COUNT(x)        atomic_inc_32(&x)
  
  #else   /* DEBUG */
  
  #define MAXFD(x)
  #define COUNT(x)