K 10
svn:author
V 3
alc
K 8
svn:date
V 27
1999-07-13T03:32:17.000000Z
K 7
svn:log
V 430
Changed the implementation of the primitives to guarantee atomicity
with respect to interrupts on UP systems.  (The upgrade from gcc 2.7.x
to egcs 1.1.2 produced at least one non-atomic code sequence in
swap_pager_getpages.)

In addition, the primitives are now SMP-safe, but only on SMPs.  (For
portability between SMPs and UPs, modules are compiled with the SMP-safe
versions.)

Submitted by:	dillon and myself
Reviewed by:	bde

END