From: Al Viro <viro@ZenIV.linux.org.uk>
Date: Sun, 7 Aug 2011 17:55:11 +0000 (+0100)
Subject: fix rcu annotations noise in cred.h
X-Git-Tag: v3.1-rc1~5
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=3295514841c2112d94451ba5deaf54f5afb78ea9;p=pandora-kernel.git

fix rcu annotations noise in cred.h

task->cred is declared as __rcu, and access to other tasks' ->cred is,
indeed, protected.  Access to current->cred does not need rcu_dereference()
at all, since only the task itself can change its ->cred.  sparse, of
course, has no way of knowing that...

Add force-cast in current_cred(), make current_fsuid() et.al. use it.

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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