path: root/Documentation/RCU/rcubarrier.txt
diff options
authorPaul E. McKenney <paulmck@linux.vnet.ibm.com>2009-06-25 09:08:18 -0700
committerIngo Molnar <mingo@elte.hu>2009-07-03 10:02:29 +0200
commit240ebbf81f149b11a31e060ebe5ee51a3c775360 (patch)
treed8aa6601bd789991588e467bf734d40df36e1317 /Documentation/RCU/rcubarrier.txt
parent0acc512cb1a29636df5e982c7d845edafe77c2d0 (diff)
rcu: Add synchronize_sched_expedited() rcutorture doc + updates
This patch updates the rcutorture documentation to include updated output format. It also brings the RCU documentation up to date. Signed-off-by: Paul E. McKenney <paulmck@linux.vnet.ibm.com> Cc: akpm@linux-foundation.org Cc: torvalds@linux-foundation.org Cc: davem@davemloft.net Cc: dada1@cosmosbay.com Cc: zbr@ioremap.net Cc: jeff.chua.linux@gmail.com Cc: paulus@samba.org Cc: laijs@cn.fujitsu.com Cc: jengelh@medozas.de Cc: r000n@r000n.net Cc: benh@kernel.crashing.org Cc: mathieu.desnoyers@polymtl.ca LKML-Reference: <12459460983193-git-send-email-> Signed-off-by: Ingo Molnar <mingo@elte.hu>
Diffstat (limited to 'Documentation/RCU/rcubarrier.txt')
1 files changed, 7 insertions, 0 deletions
diff --git a/Documentation/RCU/rcubarrier.txt b/Documentation/RCU/rcubarrier.txt
index 909602d409bb..e439a0edee22 100644
--- a/Documentation/RCU/rcubarrier.txt
+++ b/Documentation/RCU/rcubarrier.txt
@@ -170,6 +170,13 @@ module invokes call_rcu() from timers, you will need to first cancel all
the timers, and only then invoke rcu_barrier() to wait for any remaining
RCU callbacks to complete.
+Of course, if you module uses call_rcu_bh(), you will need to invoke
+rcu_barrier_bh() before unloading. Similarly, if your module uses
+call_rcu_sched(), you will need to invoke rcu_barrier_sched() before
+unloading. If your module uses call_rcu(), call_rcu_bh(), -and-
+call_rcu_sched(), then you will need to invoke each of rcu_barrier(),
+rcu_barrier_bh(), and rcu_barrier_sched().
Implementing rcu_barrier()