K 10
svn:author
V 3
alc
K 8
svn:date
V 27
1999-03-11T05:56:49.000000Z
K 7
svn:log
V 305
MFC:

Change vm_map_growstack to acquire and hold a read lock (instead of a write
lock) until it actually needs to modify the vm_map.

Upgrading a map's lock to exclusive status should increment
the map's timestamp.  In general, whenever an exclusive lock is
acquired the timestamp should be incremented.

END