Re: How Linux /proc filesystem convert a fd to the actual pathname?

[Jan Engelhardt]

>In the Linux proc filesystem,  /proc/[pid]/fd is a link to the
>actually the actual pathname of the opened file.
>
>I am curious how Linux convert an fd to the pathname?  Does it
>recursively walk back from current dentry to the root?

AFAICS the fd has a pointer to the vma of the file (don't ask me why), 
which in turn has a 'struct file' pointer, which in turn has the 
required 'struct dentry' in it.


	Jan
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