summaryrefslogtreecommitdiff
path: root/drivers/edac/edac_mc.c
diff options
context:
space:
mode:
authorLai Jiangshan <laijs@cn.fujitsu.com>2011-05-26 23:25:58 (GMT)
committerLinus Torvalds <torvalds@linux-foundation.org>2011-05-27 00:12:37 (GMT)
commite2e77098764636456ba7092a8b3b3b34b2a8e8d8 (patch)
tree58e2b06e61326b05c8850bb196eaad071903df0b /drivers/edac/edac_mc.c
parent26498e89e83c62cffcb8836a2ac2c5b795d84258 (diff)
downloadlinux-e2e77098764636456ba7092a8b3b3b34b2a8e8d8.tar.xz
edac,rcu: use synchronize_rcu() instead of call_rcu()+rcu_barrier()
synchronize_rcu() does the stuff as needed. Signed-off-by: Lai Jiangshan <laijs@cn.fujitsu.com> Cc: Doug Thompson <dougthompson@xmission.com> Cc: "Paul E. McKenney" <paulmck@linux.vnet.ibm.com> Cc: Mauro Carvalho Chehab <mchehab@infradead.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'drivers/edac/edac_mc.c')
-rw-r--r--drivers/edac/edac_mc.c16
1 files changed, 6 insertions, 10 deletions
diff --git a/drivers/edac/edac_mc.c b/drivers/edac/edac_mc.c
index 1d80560..d69144a 100644
--- a/drivers/edac/edac_mc.c
+++ b/drivers/edac/edac_mc.c
@@ -447,20 +447,16 @@ fail1:
return 1;
}
-static void complete_mc_list_del(struct rcu_head *head)
-{
- struct mem_ctl_info *mci;
-
- mci = container_of(head, struct mem_ctl_info, rcu);
- INIT_LIST_HEAD(&mci->link);
-}
-
static void del_mc_from_global_list(struct mem_ctl_info *mci)
{
atomic_dec(&edac_handlers);
list_del_rcu(&mci->link);
- call_rcu(&mci->rcu, complete_mc_list_del);
- rcu_barrier();
+
+ /* these are for safe removal of devices from global list while
+ * NMI handlers may be traversing list
+ */
+ synchronize_rcu();
+ INIT_LIST_HEAD(&mci->link);
}
/**