On Tue, Feb 23, 2010 at 6:59 AM, Dave Airlie <airl...@gmail.com> wrote:
> On Sat, Feb 20, 2010 at 12:22 PM, Maarten Maathuis <madman2...@gmail.com>
> wrote:
>> - Without this change I get a general protection fault.
>> - Also use PTR_ERR where applicable.
>
> I just want to make sure I understand, but really the only bit of this
> patch that matters is:
>
>> @@ -556,9 +559,10 @@ int ttm_tt_swapout(struct ttm_tt *ttm, struct file
>> *persistant_swap_storage)
>> if (unlikely(from_page == NULL))
>> continue;
>> to_page = read_mapping_page(swap_space, i, NULL);
>> - if (unlikely(to_page == NULL))
>> + if (unlikely(IS_ERR(to_page))) {
>
> ^^ these two lines where we are testing for NULL but should be
> checking for an error?
Yes, that's the critical bit. As you can see we were already doing
this for ttm_tt_swapin.
>
>> + ret = PTR_ERR(to_page);
>> goto out_err;
>> -
>> + }
>
> If that is true and the rest is just nice cleanups then I'm okay with it,.
>
> Reviewed-by: Dave Airlie <airl...@redhat.com>
>
> I'll need Thomas's ack on this also.
>
> Dave.
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