mirrors/linux-stable
1
0
Fork 0
mirror of https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git synced 2024-11-01 17:08:10 +00:00
Code Issues Releases Wiki Activity

rcu-tasks: Remove grace-period fast-path rcu-tasks helper

Browse source 
Now that the grace-period fast path can only happen during the
pre-scheduler portion of early boot, this fast path can no longer block
run-time RCU Tasks and RCU Tasks Trace grace periods.  This commit
therefore removes the conditional cond_resched_tasks_rcu_qs() invocation.

Signed-off-by: Paul E. McKenney <paulmck@kernel.org>
This commit is contained in:
Paul E. McKenney 2022-08-04 17:16:24 -07:00
parent a5d1b0b68a
commit 5f11bad6b7
1 changed files with 0 additions and 2 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

2
kernel/rcu/tree.c
View file

@ -3492,8 +3492,6 @@ void synchronize_rcu(void)
// which allows reuse of ->gp_seq_polled_snap. // which allows reuse of ->gp_seq_polled_snap.
rcu_poll_gp_seq_start_unlocked(&rcu_state.gp_seq_polled_snap); rcu_poll_gp_seq_start_unlocked(&rcu_state.gp_seq_polled_snap);
rcu_poll_gp_seq_end_unlocked(&rcu_state.gp_seq_polled_snap); rcu_poll_gp_seq_end_unlocked(&rcu_state.gp_seq_polled_snap);
if (rcu_init_invoked())
cond_resched_tasks_rcu_qs();
return; // Context allows vacuous grace periods. return; // Context allows vacuous grace periods.
} }
if (rcu_gp_is_expedited()) if (rcu_gp_is_expedited())