Re: [rfc][patch] Avoid taking global tasklist_lock for single threadedprocess at getrusage()

Christoph Lameter <[email protected]> wrote:
>
> On Fri, 6 Jan 2006, Ravikiran G Thirumalai wrote:
> 
> > +	need_lock = !(p == current && thread_group_empty(p));
> 
> Isnt 
> 
> need_lock = (p != current || !thread_group_empty(b))
> 
> clearer?

I was actually going to change it to

	if (p != current || !thread_group_empty(p))
		need_lock = 1;

a) because my brain works that way and 

b) To make the currently-unneeded initialisation of need_lock do
   something useful ;)

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---

• References:
  • Re: [rfc][patch] Avoid taking global tasklist_lock for single threadedprocess at getrusage()
    • From: Ravikiran G Thirumalai <[email protected]>
  • Re: [rfc][patch] Avoid taking global tasklist_lock for single threadedprocess at getrusage()
    • From: Oleg Nesterov <[email protected]>
  • Re: [rfc][patch] Avoid taking global tasklist_lock for single threadedprocess at getrusage()
    • From: Ravikiran G Thirumalai <[email protected]>
  • Re: [rfc][patch] Avoid taking global tasklist_lock for single threadedprocess at getrusage()
    • From: Christoph Lameter <[email protected]>

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