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Re: [Xen-devel] [PATCH] linux/balloon: prefer using pages from balloon i

To: "Dave McCracken" <dcm@xxxxxxxx>
Subject: Re: [Xen-devel] [PATCH] linux/balloon: prefer using pages from balloon in alloc_empty_pages_and_pagevec()
From: "Jan Beulich" <JBeulich@xxxxxxxxxx>
Date: Fri, 18 Dec 2009 15:01:31 +0000
Cc: Jeremy Fitzhardinge <jeremy@xxxxxxxx>, xen-devel@xxxxxxxxxxxxxxxxxxx
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>>> Dave McCracken <dcm@xxxxxxxx> 18.12.09 15:32 >>>
>On Friday 18 December 2009, Jan Beulich wrote:
>> >>> Dave McCracken <dcm@xxxxxxxx> 17.12.09 21:33 >>>
>> >
>> >I don't see anything wrong with the error path.  It correctly walks back
>> > down  the pagevec and frees all the pages it's allocated so far.
>> Oh, you're probably looking at the code past the err: label, but I was
>> referring to the handling of a failed apply_to_page_range().
>Ok, yeah.  It frees up the page that's currently being worked on, then jumps 
>to err: to clean up all the other pages in the pagevec and free the pagevec.  
>Is there something wrong about it that I'm missing?

It should __free_pages(..., order) rather than __free_page(...).


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