K 10
svn:author
V 7
rwatson
K 8
svn:date
V 27
2008-08-08T14:36:21.995577Z
K 7
svn:log
V 455
Merge r177843,178147 from head to stable/7:

  Add rw_try_rlock() and rw_try_wlock() to rwlocks.
  These functions try the specified operation (rlocking and wlocking) and
  true is returned if the operation completes, false otherwise.

  The KPI is enriched by this commit, so __FreeBSD_version bumping and
  manpage updating will happen soon.

  Requested by:   jeff, kris

  Trylocks were implemented, remove stale comment

Discussed with:	attilio, jhb

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