The patch titled
rcu classic: update qlen when cpu offline
has been added to the -mm tree. Its filename is
rcu-classic-update-qlen-when-cpu-offline.patch
Before you just go and hit "reply", please:
a) Consider who else should be cc'ed
b) Prefer to cc a suitable mailing list as well
c) Ideally: find the original patch on the mailing list and do a
reply-to-all to that, adding suitable additional cc's
*** Remember to use Documentation/SubmitChecklist when testing your code ***
See http://www.zip.com.au/~akpm/linux/patches/stuff/added-to-mm.txt to find
out what to do about this
The current -mm tree may be found at http://userweb.kernel.org/~akpm/mmotm/
------------------------------------------------------
Subject: rcu classic: update qlen when cpu offline
From: Lai Jiangshan <laijs@xxxxxxxxxxxxxx>
When callbacks are moved from offline cpu to this cpu, the qlen field of
this rdp should be updated.
Signed-off-by: Lai Jiangshan <laijs@xxxxxxxxxxxxxx>
Reviewed-by: Paul E. McKenney <paulmck@xxxxxxxxxxxxxxxxxx>
Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
---
kernel/rcuclassic.c | 4 ++++
1 file changed, 4 insertions(+)
diff -puN kernel/rcuclassic.c~rcu-classic-update-qlen-when-cpu-offline kernel/rcuclassic.c
--- a/kernel/rcuclassic.c~rcu-classic-update-qlen-when-cpu-offline
+++ a/kernel/rcuclassic.c
@@ -373,6 +373,10 @@ static void __rcu_offline_cpu(struct rcu
rcu_move_batch(this_rdp, rdp->donelist, rdp->donetail);
rcu_move_batch(this_rdp, rdp->curlist, rdp->curtail);
rcu_move_batch(this_rdp, rdp->nxtlist, rdp->nxttail);
+
+ local_irq_disable();
+ this_rdp->qlen += rdp->qlen;
+ local_irq_enable();
}
static void rcu_offline_cpu(int cpu)
_
Patches currently in -mm which might be from laijs@xxxxxxxxxxxxxx are
rcu-classic-update-qlen-when-cpu-offline.patch
--
To unsubscribe from this list: send the line "unsubscribe mm-commits" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at http://vger.kernel.org/majordomo-info.html
