Messages in this thread | | | From | André Goddard Rosa <> | Date | Tue, 9 Mar 2010 08:58:08 -0300 | Subject | Re: [PATCH] sysfs/file: move NULL checks to where they make sense and can occur |
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Hello,
> On 03/05/2010 07:46 PM, André Goddard Rosa wrote: >> ... avoiding checking for NULL 2 times in a row when we already have a page. >> >> It decreases code size: >> text data bss dec hex filename >> 4246 48 4136 8430 20ee fs/sysfs/file-BEFORE.o >> 4214 48 4136 8398 20ce fs/sysfs/file-AFTER.o >> >> Signed-off-by: André Goddard Rosa <andre.goddard@gmail.com> > > Nacked-by: Tejun Heo <tj@kernel.org> > > For this level of micro optimization to be meaningful, the code path > should be *really* *really* hot, which none of sysfs code pats are. > Whatever is easier to the eyes wins. >
Ok Tejun, I understood your point of view.
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