rcu: Eliminate a few RCU_BOOST #ifdefs in favor of IS_ENABLED()

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This commit removes a few RCU_BOOST #ifdefs, replacing them with
IS_ENABLED()-protected return statements.  This relies on the
optimizer to remove any resulting dead code.  There are several other
RCU_BOOST #ifdefs, however these rely on some per-CPU variables that
are available only under RCU_BOOST.  These might be converted later,
if the simplification proves to outweigh the increase in memory footprint.
One hoped-for advantage is more easily locating compiler errors in
obscure combinations of Kconfig parameters.

Signed-off-by: Paul E. McKenney <paulmck@linux.vnet.ibm.com>
Cc: <linux-rt-users@vger.kernel.org>

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This commit is contained in:

Paul E. McKenney 2015-03-03 14:49:26 -08:00

parent e63c887cfe

commit 727b705baf

2 changed files with 20 additions and 17 deletions

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kernel/rcu/tree.h

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35

kernel/rcu/tree_plugin.h

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