Messages in this thread | | | Date | Sat, 5 Dec 2009 20:28:38 +0000 | From | Alan Cox <> | Subject | Re: [PATCH v3] vfs: new O_NODE open flag |
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> Maybe alan was worried about the O_NODE | O_RDWR, etc. case? That > simply doesn't make any sense for special files.
I am concerned primarily about the lack of ability to get rid of such a handle in a controlled fashion. The udev/device unload case is simply one obvious way to exploit it.
I still don't believe O_NODE makes sense without revoke(), and even then needs huge amounts of care on the device side of things.
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