Messages in this thread | | | Subject | Re: [-mm patch] make kcalloc() a static inline | From | Alan Cox <> | Date | Mon, 15 Aug 2005 14:51:13 +0100 |
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On Llu, 2005-08-15 at 16:06 +0300, Pekka J Enberg wrote: > and I saw small reduction in kernel text with kcalloc() inlined. If GCC > is, in fact, spreading the extra operations everywhere, shouldn't kernel > text be bigger?
Only if the cost of the function call in lines of code is higher than the inline code. That includes the less obvious cost for the fact that its a synchronization point so you can't do certain optimisations through a function call (the function you are calling may read/write any global/static variable or pointer target).
Alan
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