diff options
| author | Lai Jiangshan <laijs@cn.fujitsu.com> | 2011-05-27 03:25:58 +0400 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2011-05-27 04:12:37 +0400 |
| commit | e2e77098764636456ba7092a8b3b3b34b2a8e8d8 (patch) | |
| tree | 58e2b06e61326b05c8850bb196eaad071903df0b /drivers/edac/edac_device.c | |
| parent | 26498e89e83c62cffcb8836a2ac2c5b795d84258 (diff) | |
| download | linux-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_device.c')
| -rw-r--r-- | drivers/edac/edac_device.c | 24 |
1 files changed, 6 insertions, 18 deletions
diff --git a/drivers/edac/edac_device.c b/drivers/edac/edac_device.c index a7408cf86f37..c3f67437afb6 100644 --- a/drivers/edac/edac_device.c +++ b/drivers/edac/edac_device.c @@ -346,30 +346,18 @@ fail1: } /* - * complete_edac_device_list_del - * - * callback function when reference count is zero - */ -static void complete_edac_device_list_del(struct rcu_head *head) -{ - struct edac_device_ctl_info *edac_dev; - - edac_dev = container_of(head, struct edac_device_ctl_info, rcu); - INIT_LIST_HEAD(&edac_dev->link); -} - -/* * del_edac_device_from_global_list - * - * remove the RCU, setup for a callback call, - * then wait for the callback to occur */ static void del_edac_device_from_global_list(struct edac_device_ctl_info *edac_device) { list_del_rcu(&edac_device->link); - call_rcu(&edac_device->rcu, complete_edac_device_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(&edac_device->link); } /* |