Re: [PATCH v2 1/7] fs/proc/task_mmu.c: don't use task->mm in m_start() and show_*map()

From: Oleg Nesterov
Date: Wed Aug 06 2014 - 10:12:33 EST


On 08/06, Kirill A. Shutemov wrote:
>
> On Tue, Aug 05, 2014 at 09:46:44PM +0200, Oleg Nesterov wrote:
> >
> > if (m->count < m->size) /* vma is copied successfully */
> > - m->version = (vma != get_gate_vma(task->mm))
> > + m->version = (vma != priv->tail_vma)
> > ? vma->vm_start : 0;
>
> Drop excessive parenthesis while you're there? And in the next hunk.

I agree. But lets do this in another patch? I forgot to mention this in
the yesterday's TODO, but we should factor out this code. Perhaps move
this into vma_stop(). Or at least add a trivial helper, this pattern
repeats 3 times, plus another one in m_start(). This problem is that I
do not really understand this logic right now, but I'll do something
today in any case.

> Otherwise:
>
> Acked-by: Kirill A. Shutemov <kirill.shutemov@xxxxxxxxxxxxxxx>

Thanks!

Oleg.

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