Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx> wrote: > > The performance implications of this proposal are terrifying. > > I suggest adding a set of non-debug inlined refcount functions which > just fall back to the simple atomic.h operations. > > And add a new CONFIG_DEBUG_REFCOUNT. So the performance (and code > size!) with CONFIG_DEBUG_REFCOUNT=n is unaltered from present code. > And make CONFIG_DEBUG_REFCOUNT suitably difficult to set. I agree. Refcounts are used in many performance-critical sites within the network subsystem. Thanks, -- Email: Herbert Xu <herbert@xxxxxxxxxxxxxxxxxxx> Home Page: http://gondor.apana.org.au/~herbert/ PGP Key: http://gondor.apana.org.au/~herbert/pubkey.txt -- To unsubscribe, send a message with 'unsubscribe linux-mm' in the body to majordomo@xxxxxxxxx. For more info on Linux MM, see: http://www.linux-mm.org/ . Don't email: <a href=mailto:"dont@xxxxxxxxx";> email@xxxxxxxxx </a>
