Re: 答复: parent inode from the current struct inode

[Jack David <jd6589@xxxxxxxxx>]

2012/2/8 Tom Lai(IT) <tomlai@xxxxxxxxxx>:
> Hi Philipp,
>
> I checked 2.6.32 that dentry struct contained parent dentry struct.
>
>
> Hi Jack,
>
> On Wed, Feb 8, 2012 at 8:48 AM, Jack David <jd6589@xxxxxxxxx> wrote:
>> Hi All,
>>
>> Is possible to get parent directory's inode structure from the current
>> inode? If so, how can I do that?
>
> It should be possible to use the container_of macro to get the parent
> dentry struct. Then, you can get the parent dentry d_parent and access
> its inode. (Please correct me, if I'm wrong. I didn't test it).
>

Okay, I tried container_of, but it did not work. So I tried
d_obtain_alias() which worked.

But I am not sure if I  have to make a call to dput() as well in order
to free the dentry obtained.
Anyone can confirm this?

J

>
>
> Philipp
>
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-- 
J

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