K 10
svn:author
V 3
alc
K 8
svn:date
V 27
2015-08-25T01:01:25.265436Z
K 7
svn:log
V 264
Testing whether a page is dirty does not require the page lock.  Moreover,
it may involve a pmap operation that iterates over the page's PV list, so
unnecessarily holding the page lock is undesirable.

MFC after:	1 week
Sponsored by:	EMC / Isilon Storage Division

END