Messages in this thread | | | Date | Mon, 10 Nov 2014 00:20:20 -0500 (EST) | Subject | Re: [PATCH 1/4] inet: Add skb_copy_datagram_iter | From | David Miller <> |
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From: Al Viro <viro@ZenIV.linux.org.uk> Date: Sun, 9 Nov 2014 21:19:08 +0000
> 1) does sparc64 access_ok() need to differ for 32bit and 64bit tasks?
sparc64 will just fault no matter what kind of task it is.
It is impossible for a user task to generate a reference to a kernel virtual address, as kernel and user accesses each go via a separate address space identifier.
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