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authorPaul E. McKenney <paulmck@linux.vnet.ibm.com>2010-04-14 16:48:11 -0700
committerPaul E. McKenney <paulmck@linux.vnet.ibm.com>2010-05-10 11:08:35 -0700
commit4a90a0681cf6cd21cd444184302aa045156486b3 (patch)
tree5e54587e0844d51f6c015f4c489cbf021c9db509 /Documentation
parent4300aa642cc9ecb35f2e0683dd294fb790ef028c (diff)
downloadlinux-linaro-stable-4a90a0681cf6cd21cd444184302aa045156486b3.tar.gz
rcu: permit discontiguous cpu_possible_mask CPU numbering
TREE_RCU assumes that CPU numbering is contiguous, but some users need large holes in the numbering to better map to hardware layout. This patch makes TREE_RCU (and TREE_PREEMPT_RCU) tolerate large holes in the CPU numbering. However, NR_CPUS must still be greater than the largest CPU number. Signed-off-by: Paul E. McKenney <paulmck@linux.vnet.ibm.com>
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