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

[Martin Schwidefsky <schwidefsky@de.ibm.com>]

On Fri, 18 Mar 2011 19:56:44 +0000
Prasad Joshi <prasadjoshi124@gmail.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.

-- 
blue skies,
   Martin.

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