rcu: Provide counterpart to rcu_dereference() for non-RCU situations

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Although rcu_dereference() and friends can be used in situations where
object lifetimes are being managed by something other than RCU, the
resulting sparse and lockdep-RCU noise can be annoying.  This commit
therefore supplies a lockless_dereference(), which provides the
protection for dereferences without the RCU-related debugging noise.

Reported-by: Al Viro <viro@ZenIV.linux.org.uk>
Signed-off-by: Paul E. McKenney <paulmck@linux.vnet.ibm.com>
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>

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Paul E. McKenney 2014-10-27 21:11:27 -07:00 • committed by Al Viro

parent 5fecf3a1e1

commit 54ef6df3f3

1 changed files with 15 additions and 0 deletions

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include/linux/rcupdate.h

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