K 10
svn:author
V 8
bmilekic
K 8
svn:date
V 27
2000-12-13T05:13:02.000000Z
K 7
svn:log
V 409
Eliminate a race in MEXTFREE(). The reference counter decrement and test
was not atomic. We now make sure that we free the ext buf if the reference
count is about to reach 0 but also make sure that nobody else has done it
before us.

While I'm here, change refcnt to u_int (from long). This fixes a compiler
warning regarding use of atomic_cmpset_long on i386.

Submitted by: jasone
Reviewed by: jlemon, jake

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