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SubjectRe: [PATCH 1/13] fs: convert core functions to zero_user_page
On Tue, 10 April 2007 22:56:38 -0700, Andrew Morton wrote:
> And I'm surprised that this:
> +static inline void memclear_highpage_flush(struct page *page, unsigned int offset, unsigned int size)
> +{
> + return zero_user_page(page, offset, size);
> +}
> compiled. zero_user_page() returns void...

As does memclear_highpage_flush(). Some of my code looks like:
void some_func(...)
if (foo)
return do_foo(...);
if (bar)
return do_bar(...);

do_foo() and do_bar() also return void. Saves an extra line for the
return statment and the brackets.

Doesn't help in the code you quoted, of course.


Measure. Don't tune for speed until you've measured, and even then
don't unless one part of the code overwhelms the rest.
-- Rob Pike
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