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SubjectRe: [PATCH 1/2] fs: optimize mpage_readpage()
On Sat, May 29, 2010 at 9:46 PM, Borislav Petkov <> wrote:
> From: Changli Gao <>
> Date: Sat, May 29, 2010 at 09:26:47PM +0800
>> Did the compiler warning appear after applying my patch? It doesn't
>> happen when I testing it.
> yep, using gcc (Debian 4.4.4-2) 4.4.4 here.
>> And I don't pass bio to do_mpage_readpage(), but I pass NULL instead.
> True, but you still need that bio pointer so you might just as well set
> it to NULL as the original code does.

I'm using gcc 4.4.3(Gentoo). It's strange. on that line, bio is only
used as left value. Maybe it is a compiler bug, or you didn't apply my
patch properly.

Changli Gao(
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