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authorPaul E. McKenney <paulmck@linux.vnet.ibm.com>2018-07-03 17:22:34 -0700
committerPaul E. McKenney <paulmck@linux.vnet.ibm.com>2018-08-30 16:03:01 -0700
commit834f56bf54e866e8db9d09b02fb1f3c0184ec927 (patch)
treedd5c8b25ba9d38e9fe1fc3c2f91fed0e4d5095b0 /kernel/rcu
parentc6e09b97b9338de2b829a4005dc437e689bf903e (diff)
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rcu: Remove rsp parameter from rcu_advance_cbs()
There now is only one rcu_state structure in a given build of the Linux kernel, so there is no need to pass it as a parameter to RCU's functions. This commit therefore removes the rsp parameter from rcu_advance_cbs(). Signed-off-by: Paul E. McKenney <paulmck@linux.vnet.ibm.com>
Diffstat (limited to 'kernel/rcu')
-rw-r--r--kernel/rcu/tree.c9
1 files changed, 4 insertions, 5 deletions
diff --git a/kernel/rcu/tree.c b/kernel/rcu/tree.c
index e66d9e446b1d..6964d04c0823 100644
--- a/kernel/rcu/tree.c
+++ b/kernel/rcu/tree.c
@@ -1734,8 +1734,7 @@ static void rcu_accelerate_cbs_unlocked(struct rcu_node *rnp,
*
* The caller must hold rnp->lock with interrupts disabled.
*/
-static bool rcu_advance_cbs(struct rcu_state *rsp, struct rcu_node *rnp,
- struct rcu_data *rdp)
+static bool rcu_advance_cbs(struct rcu_node *rnp, struct rcu_data *rdp)
{
raw_lockdep_assert_held_rcu_node(rnp);
@@ -1773,7 +1772,7 @@ static bool __note_gp_changes(struct rcu_state *rsp, struct rcu_node *rnp,
/* Handle the ends of any preceding grace periods first. */
if (rcu_seq_completed_gp(rdp->gp_seq, rnp->gp_seq) ||
unlikely(READ_ONCE(rdp->gpwrap))) {
- ret = rcu_advance_cbs(rsp, rnp, rdp); /* Advance callbacks. */
+ ret = rcu_advance_cbs(rnp, rdp); /* Advance callbacks. */
trace_rcu_grace_period(rsp->name, rdp->gp_seq, TPS("cpuend"));
} else {
ret = rcu_accelerate_cbs(rnp, rdp); /* Recent callbacks. */
@@ -3663,8 +3662,8 @@ static void rcu_migrate_callbacks(int cpu, struct rcu_state *rsp)
}
raw_spin_lock_rcu_node(rnp_root); /* irqs already disabled. */
/* Leverage recent GPs and set GP for new callbacks. */
- needwake = rcu_advance_cbs(rsp, rnp_root, rdp) ||
- rcu_advance_cbs(rsp, rnp_root, my_rdp);
+ needwake = rcu_advance_cbs(rnp_root, rdp) ||
+ rcu_advance_cbs(rnp_root, my_rdp);
rcu_segcblist_merge(&my_rdp->cblist, &rdp->cblist);
WARN_ON_ONCE(rcu_segcblist_empty(&my_rdp->cblist) !=
!rcu_segcblist_n_cbs(&my_rdp->cblist));