K 10
svn:author
V 3
kib
K 8
svn:date
V 27
2012-03-11T20:23:46.620381Z
K 7
svn:log
V 262
Do not fall back to slow synchronous i/o when low on memory or buffers.
The bawrite() schedules the write to happen immediately, and its use
frees the current thread to do more cleanups.

Submitted by:	bde
Reviewed by:	mckusick
Tested by:	pho
MFC after:	2 weeks

END