K 10
svn:author
V 3
jhb
K 8
svn:date
V 27
2010-01-22T14:44:15.888015Z
K 7
svn:log
V 535
MFC 193440,193442,193762,194019:
- Support shared vnode locks for write operations when the offset is
  provided on filesystems that support it.  This really improves mysql
  + innodb performance on ZFS.
- When checking for shared writes, use the struct mount returned from
  vn_start_write.
- Simply shared vnode locking and extend it to also include fsync.
  Also, in vop_write, no longer assert for exclusive locks on the
  vnode.
- Stop asserting on exclusive locks in fsync since it can now support
  shared vnode locking on ZFS.

END