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authorPaul E. McKenney <paulmck@linux.vnet.ibm.com>2017-05-02 08:45:25 -0700
committerPaul E. McKenney <paulmck@linux.vnet.ibm.com>2017-05-02 09:21:59 -0700
commit4b27f20b40a23f03df682eb1f69e9dc3da7d3b93 (patch)
tree13dd72ff209b6ea79f84da0bcfa8642ac4181222 /kernel/rcu/tree_plugin.h
parent8ef0f37efb7863a04b1e4102d42b7c0b1a59d40f (diff)
downloadop-kernel-dev-4b27f20b40a23f03df682eb1f69e9dc3da7d3b93.zip
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rcu: Open-code the rcu_cblist_n_cbs() function
Because the rcu_cblist_n_cbs() just samples the ->len counter, and because the rcu_cblist structure is quite straightforward, it makes sense to open-code rcu_cblist_n_cbs(p) as p->len, cutting out a level of indirection. This commit makes this change. Reported-by: Ingo Molnar <mingo@kernel.org> Signed-off-by: Paul E. McKenney <paulmck@linux.vnet.ibm.com> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Thomas Gleixner <tglx@linutronix.de> Cc: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'kernel/rcu/tree_plugin.h')
-rw-r--r--kernel/rcu/tree_plugin.h2
1 files changed, 1 insertions, 1 deletions
diff --git a/kernel/rcu/tree_plugin.h b/kernel/rcu/tree_plugin.h
index 6b4b1f8..7ebe357 100644
--- a/kernel/rcu/tree_plugin.h
+++ b/kernel/rcu/tree_plugin.h
@@ -1934,7 +1934,7 @@ static bool __maybe_unused rcu_nocb_adopt_orphan_cbs(struct rcu_state *rsp,
struct rcu_data *rdp,
unsigned long flags)
{
- long ql = rcu_cblist_n_cbs(&rsp->orphan_done);
+ long ql = rsp->orphan_done.len;
long qll = rcu_cblist_n_lazy_cbs(&rsp->orphan_done);
/* If this is not a no-CBs CPU, tell the caller to do it the old way. */
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