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| author | Paul E. McKenney <paulmck@linux.vnet.ibm.com> | 2018-04-12 16:29:13 -0700 |
|---|---|---|
| committer | Paul E. McKenney <paulmck@linux.vnet.ibm.com> | 2018-05-15 10:30:59 -0700 |
| commit | c1935209df8c903fc3a33143223338826fa54bd1 (patch) | |
| tree | d60d6f9ac8350e6e3e5866ca7951387a5d4d4d48 /kernel/rcu/rcu_segcblist.h | |
| parent | 384f77f4cb765707216ea43f9122580d8a07be7d (diff) | |
| download | lwn-c1935209df8c903fc3a33143223338826fa54bd1.tar.gz lwn-c1935209df8c903fc3a33143223338826fa54bd1.zip | |
rcu: Simplify and inline cpu_needs_another_gp()
Now that RCU no longer relies on failsafe checks, cpu_needs_another_gp()
can be greatly simplified. This simplification eliminates the last
call to rcu_future_needs_gp() and to rcu_segcblist_future_gp_needed(),
both of which which can then be eliminated. And then, because
cpu_needs_another_gp() is called only from __rcu_pending(), it can be
inlined and eliminated.
This commit carries out the simplification, inlining, and elimination
called out above.
Signed-off-by: Paul E. McKenney <paulmck@linux.vnet.ibm.com>
Tested-by: Nicholas Piggin <npiggin@gmail.com>
Diffstat (limited to 'kernel/rcu/rcu_segcblist.h')
| -rw-r--r-- | kernel/rcu/rcu_segcblist.h | 2 |
1 files changed, 0 insertions, 2 deletions
diff --git a/kernel/rcu/rcu_segcblist.h b/kernel/rcu/rcu_segcblist.h index 581c12b63544..948470cef385 100644 --- a/kernel/rcu/rcu_segcblist.h +++ b/kernel/rcu/rcu_segcblist.h @@ -134,7 +134,5 @@ void rcu_segcblist_insert_pend_cbs(struct rcu_segcblist *rsclp, struct rcu_cblist *rclp); void rcu_segcblist_advance(struct rcu_segcblist *rsclp, unsigned long seq); bool rcu_segcblist_accelerate(struct rcu_segcblist *rsclp, unsigned long seq); -bool rcu_segcblist_future_gp_needed(struct rcu_segcblist *rsclp, - unsigned long seq); void rcu_segcblist_merge(struct rcu_segcblist *dst_rsclp, struct rcu_segcblist *src_rsclp); |