Hello, On Mon, Oct 29, 2012 at 12:14:12PM -0400, Mathieu Desnoyers wrote: > Most of the calls to this initialization function apply it on zeroed > memory (static/kzalloc'd...), which makes it useless. I'd actually be in > favor of removing those redundant calls (as I pointed out in another > email), and document that zeroed memory don't need to be explicitly > initialized. > > Those sites that need to really reinitialize memory, or initialize it > (if located on the stack or in non-zeroed dynamically allocated memory) > could use a memset to 0, which will likely be faster than setting to > NULL on many architectures.
I don't think it's a good idea to optimize out the basic encapsulation there. We're talking about re-zeroing some static memory areas which are pretty small. It's just not worth optimizing out at the cost of proper initializtion. e.g. We might add debug fields to list_head later. Thanks. -- tejun -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to [email protected] More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
