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authorPaul E. McKenney <paulmck@linux.vnet.ibm.com>2014-02-28 16:11:28 -0800
committerPaul E. McKenney <paulmck@linux.vnet.ibm.com>2014-04-29 08:38:33 -0700
commitb4c5bf353452c49edd860a67845627c9a8f32638 (patch)
tree2831f1d9bf2c3523081312b4d0a5d45eaf19c6a8 /lib/iovec.c
parent96224daa16d6589aff87339cf0f630ef13600a59 (diff)
documentation: Record rcu_dereference() value mishandling
Recent LKML discussings (see http://lwn.net/Articles/586838/ and http://lwn.net/Articles/588300/ for the LWN writeups) brought out some ways of misusing the return value from rcu_dereference() that are not necessarily completely intuitive. This commit therefore documents what can and cannot safely be done with these values. Signed-off-by: Paul E. McKenney <paulmck@linux.vnet.ibm.com> Reviewed-by: Josh Triplett <josh@joshtriplett.org>
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