K 10
svn:author
V 8
lstewart
K 8
svn:date
V 27
2010-07-08T03:41:57.277551Z
K 7
svn:log
V 718
MFC r209119,209325:

- Add a utility macro to simplify calculating an aggregate sum from a DPCPU
  counter variable.

- Rename the internal for loop iterator to "_i" to avoid potential shadowing of
  external variables named "i". The "_" prefix is reserved for infrastructure
  type code and is therefore not expected to be used by normal code likely to
  call DPCPU_SUM(). [1]

- Change DPCPU_SUM to return the sum rather than calculate and assign it
  internally. Usage is now: "sum = DPCPU_SUM(dpcpu_var, member_to_sum);" [2]

- Fix some style nits. [3]

Sponsored by:	FreeBSD Foundation
Suggested by:	bde [3], mdf [1], kib [1,2], pjd [1,3]
Reviewed by:	jhb, rpaulo, rwatson (old version of r209119), kib (r209325)

END