Messages in this thread | | | Date | Fri, 6 Aug 2004 18:23:23 +0100 | From | viro@parcelfa ... | Subject | Re: d_path errors |
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On Fri, Aug 06, 2004 at 05:23:56PM +0200, Andrea Arcangeli wrote:
> on a slightly different topic, Al, could you suggest how to hack d_path > so that it provides an absolute path with respect to the init_task root > directory?
Simple: you don't. a) filesystem may be mounted more than once in init_task's namespace b) filesystem may be not mounted there at all. c) different subtrees of filessytem might be mounted there and full tree might be not among them; your file might be covered by some of them.
What you are asking for is about as feasible as "I have an unlinked file. Show me a pathname of existing link to it". The best answer will be along the lines of "use find(1) if you are that desperate". And if vfsmount/dentry did *not* give you an absolute pathname, you are in situation equivalent to that.
No way in hell it's getting shoved in d_path() and I'm very sceptical about any code that really needs that. - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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