From: J. Bruce Fields <bfields@fieldses.org>
Date: Tue, 5 Dec 2006 01:22:32 +0000 (-0500)
Subject: rpc: gss: fix a kmap_atomic race in krb5 code
X-Git-Tag: v2.6.20-rc1~34^2~412^2~30
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=87d918d667e51962938392759aef6ca368d6e96d;p=pandora-kernel.git

rpc: gss: fix a kmap_atomic race in krb5 code

This code is never called from interrupt context; it's always run by either
a user thread or rpciod.  So KM_SKB_SUNRPC_DATA is inappropriate here.

Thanks to Aimé Le Rouzic for capturing an oops which showed the kernel
taking an interrupt while we were in this piece of code, resulting in a
nested kmap_atomic(.,KM_SKB_SUNRPC_DATA) call from
xdr_partial_copy_from_skb().

Signed-off-by: J. Bruce Fields <bfields@citi.umich.edu>
Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
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