Messages in this thread | | | Date | Sun, 31 May 2009 00:13:18 +0100 | From | Alan Cox <> | Subject | Re: [patch 0/5] Support for sanitization flag in low-level page allocator |
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> I was pointing out that the 'those test and jump/call branches have > performance hits' argument, while nonsensical, applies to kzfree and > with even more negative connotations (deeper call depth, more test > branches used in ksize and kfree, lack of pointer validation).
But they only apply to kzfree - there isn't a cost to anyone else. You've move the decision to compile time which for the fast path stuff when you just want to clear keys and other oddments is a big win.
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