On Tue, 2005-02-01 at 09:33, Stephen Smalley wrote: > Module removal has plenty of other > safety issues already, doesn't it? On this topic, how valuable do you consider your current logic in the stacker module for incrementing the use count on each stacked security module while calling it? One of the stated purposes of RCU (per Documentation/RCU/rcu.txt) is to allow RCU readers to avoid not only lock acquisition but also other expensive operations like atomic instructions. Having to perform an atomic_inc and atomic_dec_and_test for each stacked security module seems unfortunate, especially for an uncommon situation like module removal. -- Stephen Smalley <sds@private> National Security Agency
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