TWxSoftware/twx-linux
1
0
Fork 0
Code Issues Pull Requests Actions Packages Projects Releases Wiki Activity

rcu/nocb: Remove halfway (de-)offloading handling from bypass

Browse Source 
Bypass enqueue can't happen anymore in the middle of (de-)offloading
since this sort of transition now only applies to offline CPUs.

The related safety check can therefore be removed.

Signed-off-by: Frederic Weisbecker <frederic@kernel.org>
Signed-off-by: Paul E. McKenney <paulmck@kernel.org>
Reviewed-by: Paul E. McKenney <paulmck@kernel.org>
Signed-off-by: Neeraj Upadhyay <neeraj.upadhyay@kernel.org>
This commit is contained in:
Frederic Weisbecker
2024-05-30 15:45:47 +02:00
committed by Neeraj Upadhyay
parent 4e26ce4231
commit d2e7f55ff2
1 changed files with 0 additions and 8 deletions
Download Patch File Download Diff File Expand all files Collapse all files
kernel/rcu/tree_nocb.h
-8
View File
@@ -409,14 +409,6 @@ static bool rcu_nocb_try_bypass(struct rcu_data *rdp, struct rcu_head *rhp,
return false;
}
// In the process of (de-)offloading: no bypassing, but
// locking.
if (!rcu_segcblist_completely_offloaded(&rdp->cblist)) {
rcu_nocb_lock(rdp);
*was_alldone = !rcu_segcblist_pend_cbs(&rdp->cblist);
return false; /* Not offloaded, no bypassing. */
}
// Don't use ->nocb_bypass during early boot.
if (rcu_scheduler_active != RCU_SCHEDULER_RUNNING) {
rcu_nocb_lock(rdp);