should we use atomic instructions to manipulate vmstats.v_wire_count?

Sun Jan 13 04:54:21 PST 2008

Nicolas Thery wrote:
I noticed that vmstats.v_wire_count is incremented and decremented w/o
protection.  In contrast, atomic instructions (from <atomic.h>) are
used in freebsd.
Is it a bug in dfly or is it intentional?
As far as I understand, we're requiring the mplock for vm operations, so that should be covered.

cheers
 simon
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