RE: [PATCH 1/1] hv: Use only one receive buffer per channel andkmalloc on initialize

From: Hank Janssen
Date: Mon Dec 13 2010 - 19:11:29 EST




> -----Original Message-----
> From: Jesper Juhl [mailto:jj@xxxxxxxxxxxxx]
> Sent: Monday, December 13, 2010 3:51 PM
> To: Ky Srinivasan
> > > + shut_txf_buf = kmalloc(PAGE_SIZE, GFP_ATOMIC);
> > > + time_txf_buf = kmalloc(PAGE_SIZE, GFP_ATOMIC);
> > > + hbeat_txf_buf = kmalloc(PAGE_SIZE, GFP_ATOMIC);
> > Why are these allocations GFP_ATOMIC. Clearly this is in module
> loading context and you can afford to sleep. GFP_KERNEL should be fine.
> >
>
> I actually also noticed this when I did my first review of the patch,
> but
> I didn't point it out since I thought that "there must be a good
> reason".
> But now that you point it out and I look at the code once more I can't
> actually think of a "good reason",, so I agree with you completely that
> these should just be GFP_KERNEL.

I was looking at some of the back code to make sure it is okay, and I see
No reason not make this change either. I will change it and resubmit.

Thanks,

Hank.

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