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authorPaul E. McKenney <paulmck@linux.vnet.ibm.com>2014-08-13 15:40:02 -0700
committerPaul E. McKenney <paulmck@linux.vnet.ibm.com>2014-09-07 16:15:53 -0700
commit2456d2a617de0a37a0f8d1e44f4b270172c4f17a (patch)
tree92eef2cfcedc013b96009f099b52f99301bcb499 /kernel/rcu
parentefdcd51a4d5bd355796b1a757ff0355bb09ed394 (diff)
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memory-barriers: Fix description of 2-legged-if-based control dependencies
Sad to say, current compilers really will hoist identical stores from both branches of an "if" statement to precede the conditional. This commit therefore updates the description of control dependencies to reflect this ugly reality. Reported-by: Pranith Kumar <bobby.prani@gmail.com> Reported-by: Peter Zijlstra <peterz@infradead.org> Signed-off-by: Paul E. McKenney <paulmck@linux.vnet.ibm.com>
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