Tasks are no longer migrated away from a given rcu_node structure when all CPUs corresponding to that rcu_node structure have gone offline. This means that rcu_read_unlock_special() no longer needs to loop retrying rcu_node ->lock acquisition because the current task is guaranteed to stay put. This commit takes a small and paranoid step towards relying on this guarantee by placing a WARN_ON_ONCE() just after the early exit from the lock-acquisition loop. Signed-off-by: Paul E. McKenney <paulmck@linux.vnet.ibm.com> |
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.. | ||
Makefile | ||
rcu.h | ||
rcutorture.c | ||
srcu.c | ||
tiny.c | ||
tiny_plugin.h | ||
tree.c | ||
tree.h | ||
tree_plugin.h | ||
tree_trace.c | ||
update.c |