linux-kernel - Re: [RFC][PATCH v3 09/22] mm, s390: add gfp flags variant of pud, pte, and pte allocations

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Date:	Tue, 22 Mar 2011 08:56:24 +0100
From:	Martin Schwidefsky <schwidefsky@...ibm.com>
To:	Prasad Joshi <prasadjoshi124@...il.com>
Cc:	heiko.carstens@...ibm.com, linux390@...ibm.com,
	linux-s390@...r.kernel.org, linux-kernel@...r.kernel.org,
	mitra@...nfotech.com
Subject: Re: [RFC][PATCH v3 09/22] mm, s390: add gfp flags variant of pud,
 pte, and pte allocations

On Mon, 21 Mar 2011 19:02:39 +0000
Prasad Joshi <prasadjoshi124@...il.com> wrote:

> On Mon, Mar 21, 2011 at 09:34:12AM +0100, Martin Schwidefsky wrote:
> > On Fri, 18 Mar 2011 19:56:44 +0000
> > Prasad Joshi <prasadjoshi124@...il.com> wrote:
> > 
> > > - Added function __crst_table_alloc() which is similar to crst_table_alloc()
> > >   but accepts an extra argument gfp_t. The function uses given allocation
> > >   flag to allocate pages.
> > > 
> > > - Added a function __page_table_alloc() to allocate page table entries. This
> > >   function is allows caller to specify the page allocation flag. The
> > >   allocation flag is then passed to alloc_page(). The rest of the function is
> > >   copy of the original page_table_alloc().
> > 
> > The approach of this patch series seems straightforward, the only nitpick I
> > have is the fact that two new functions __crst_table_alloc/__page_table_alloc
> > are introduced. There aren't many call sites for the two original functions,
> > namely 4 for crst_table_alloc and 3 for page_table_alloc. Why not add the
> > gfp flag GFP_KERNEL to these call sites? Then the two additional functions
> > would not be needed.
> 
> Thanks a lot Martin for your reply. Here is a new patch, which the changes
> you suggested.

Looks good now. For the s390 architecture part:

Acked-by: Martin Schwidefsky <schwidefsky@...ibm.com>

-- 
blue skies,
   Martin.

"Reality continues to ruin my life." - Calvin.

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