srcu: Make srcu_funnel_gp_start() cache ->mynode in snp_leaf

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Currently, the srcu_funnel_gp_start() walks its local variable snp up the
tree and reloads sdp->mynode whenever it is necessary to check whether
it is still at the leaf srcu_node level.  This works, but is a bit more
obtuse than absolutely necessary.  In addition, upcoming commits will
dynamically size srcu_struct structures, in which case sdp->mynode will
no longer necessarily be a constant, and this commit helps prepare for
that dynamic sizing.

Signed-off-by: Paul E. McKenney <paulmck@kernel.org>

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Paul E. McKenney 2022-01-20 13:39:33 -08:00

parent 95ebe80d99

commit 7b9e9b5856

1 changed files with 7 additions and 6 deletions

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kernel/rcu/srcutree.c

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