RE: Synchronizing Bit operations V2

From: Christoph Lameter <>
Date: 2006-03-31 11:58:25
On Thu, 30 Mar 2006, Luck, Tony wrote:

> > Also some higher level functions may want to have the mode passed to them 
> > as parameters. See f.e. include/linux/buffer_head.h. Without the 
> > parameters you will have to maintain farms of definitions for all cases.
> But if any part of the call chain from those higher level functions
> down to these low level functions is not inline, then the compiler
> won't be able to collapse out the "switch (mode)" ... so we'd end up
> with a ton of extra object code.

Correct. But such bitops are typically defined to be inline.
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Received on Fri Mar 31 11:59:57 2006

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