Re: file struct's dentry being null?

[Eli Carter <eli.carter@inet.com>]

Shaya Potter wrote:
> On Wed, 2003-07-02 at 11:58, Nikita Danilov wrote:
> 
>>Shaya Potter writes:
>> > I decided to do an experiment, in fput, I did a 
>> > 
>> > struct file * next;
>> > next = (struct file *) file->f_list.next;
>>
>>->f_list.next points to the ->f_list member of next struct file rather
>>than to the struct file itself. This is how it works for all struct
>>list_head embedded into objects.
> 
> 
> yes, I understand that, the idea being that it's the first entry in the
> struct that you want to link list, so can get the next struct by just
> dereferencing the list_head (as &list_head == &struct)

No, his point was that &list_head != $struct, but rather &struct == 
&list_head - some_offset.

So the code you'd need would look like:
struct file *next;
next = list_entry( <address of the list_head>, file, f_list );

Eli
--------------------. "If it ain't broke now,
Eli Carter           \                  it will be soon." -- crypto-gram
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