Re: [patch 02/28] pm_qos: clean up racy global "name" variable

[Jonathan Corbet]

On Sat, 10 Oct 2009 21:54:22 +0200 (CEST)
John Kacur <jkacur@xxxxxxxxxx> wrote:

> Hmnn, why 32? Seems arbitrary. At least you see with "process_1234567890" 
> which is 19, an attempt to show what the maximum string size would be. If 
> a system were configured to enlarge the maximum PID from 32767 to 4194303 
> that would still only be 7 digits, so "process_1234567" - which is 16 
> digits with the newline would enough.
> 
> So, I suggest you change that to
> #define PID_NAME_LEN sizeof("process_1234567")

...which works great until somebody enables 64-bit process IDs...:)

We're talking about 20 bytes of stack space in an almost-never-called
function. I honestly don't think it's worth worrying about, but if
somebody wants to tweak it, I'll not complain.

(Thanks for looking at the patch).

jon
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