4185 New hash algorithm support

*** 20,29 ****
--- 20,32 ----
   */
  /*
   * Copyright 2009 Sun Microsystems, Inc.  All rights reserved.
   * Use is subject to license terms.
   */
+ /*
+  * Copyright 2013 Saso Kiselkov. All rights reserved.
+  */
  
  #ifndef _ZFS_FLETCHER_H
  #define _ZFS_FLETCHER_H
  
  #include <sys/types.h>
*** 35,48 ****
  
  /*
   * fletcher checksum functions
   */
  
! void fletcher_2_native(const void *, uint64_t, zio_cksum_t *);
! void fletcher_2_byteswap(const void *, uint64_t, zio_cksum_t *);
! void fletcher_4_native(const void *, uint64_t, zio_cksum_t *);
! void fletcher_4_byteswap(const void *, uint64_t, zio_cksum_t *);
  void fletcher_4_incremental_native(const void *, uint64_t,
      zio_cksum_t *);
  void fletcher_4_incremental_byteswap(const void *, uint64_t,
      zio_cksum_t *);
  
--- 38,55 ----
  
  /*
   * fletcher checksum functions
   */
  
! void fletcher_2_native(const void *, uint64_t, const zio_cksum_salt_t *,
!     const void *, zio_cksum_t *);
! void fletcher_2_byteswap(const void *, uint64_t, const zio_cksum_salt_t *,
!     const void *, zio_cksum_t *);
! void fletcher_4_native(const void *, uint64_t, const zio_cksum_salt_t *,
!     const void *, zio_cksum_t *);
! void fletcher_4_byteswap(const void *, uint64_t, const zio_cksum_salt_t *,
!     const void *, zio_cksum_t *);
  void fletcher_4_incremental_native(const void *, uint64_t,
      zio_cksum_t *);
  void fletcher_4_incremental_byteswap(const void *, uint64_t,
      zio_cksum_t *);