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authorPaul E. McKenney <paul.mckenney@linaro.org>2012-10-29 07:29:20 -0700
committerPaul E. McKenney <paulmck@linux.vnet.ibm.com>2012-11-16 10:05:57 -0800
commitc635a4e1c24e9396db10ed7424b2084908b32252 (patch)
treeac1cced2e0c05d5edcd74af6d3493e15e99a7cec /fs/fscache
parent3fbfbf7a3b66ec424042d909f14ba2ddf4372ea8 (diff)
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rcu: Separate accounting of callbacks from callback-free CPUs
Currently, callback invocations from callback-free CPUs are accounted to the CPU that registered the callback, but using the same field that is used for normal callbacks. This makes it impossible to determine from debugfs output whether callbacks are in fact being diverted. This commit therefore adds a separate ->n_nocbs_invoked field in the rcu_data structure in which diverted callback invocations are counted. RCU's debugfs tracing still displays normal callback invocations using ci=, but displayed diverted callbacks with nci=. Signed-off-by: Paul E. McKenney <paul.mckenney@linaro.org> Signed-off-by: Paul E. McKenney <paulmck@linux.vnet.ibm.com>
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