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  • Paul E. McKenney's avatar
    srcu: Introduce CLASSIC_SRCU Kconfig option · dad81a20
    Paul E. McKenney authored
    
    
    The TREE_SRCU rewrite is large and a bit on the non-simple side, so
    this commit helps reduce risk by allowing the old v4.11 SRCU algorithm
    to be selected using a new CLASSIC_SRCU Kconfig option that depends
    on RCU_EXPERT.  The default is to use the new TREE_SRCU and TINY_SRCU
    algorithms, in order to help get these the testing that they need.
    However, if your users do not require the update-side scalability that
    is to be provided by TREE_SRCU, select RCU_EXPERT and then CLASSIC_SRCU
    to revert back to the old classic SRCU algorithm.
    
    Signed-off-by: default avatarPaul E. McKenney <paulmck@linux.vnet.ibm.com>
    dad81a20