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authorKei Tokunaga <tokunaga.keiich@jp.fujitsu.com>2010-04-07 19:17:24 +0900
committerJames Bottomley <James.Bottomley@suse.de>2010-07-27 12:03:50 -0500
commit3e84beba608dee5a7c7711a3503eb2f335c78fca (patch)
tree58dc95fa9acb677e84c770ddf00cf7eaaa4321a0 /drivers/message
parentcb237ef7a45f22373575b2d2ad2d06f7d38d6bce (diff)
downloadlinux-2.6.38-lt-ux500-3e84beba608dee5a7c7711a3503eb2f335c78fca.tar.gz
[SCSI] mptsas: fixed hot-removal processing
This patch fixes mptsas disk hot-removal processing. The hot-removal processing doesn't complete because of this condition. drivers/message/fusion/mptsas.c: mptsas_taskmgmt_complete() if ((mptsas_find_vtarget(ioc, channel, id)) && !ioc->fw_events_off) mptsas_queue_device_delete(...); mptsas_queue_device_delete(), which must be called for hot-removal, never gets called because mptsas_find_vtarget() always returns 0 here. At that time, the vtarget has already been freed in mptsas_target_destroy(), and also the scsi_device has been marked as SDEV_DEL. As a result of the issue, port deletion functions won't get called and the device ends up being in an incomplete state. (Some data structures and sysfs entries, which should be removed in hot-removal, remain.) One side effect of this is that a hot-addition of the device (bringing the device back on) fails. This patch just removes mptsas_find_vtarget() from the if-state condition. Signed-off-by: Kei Tokunaga <tokunaga.keiich@jp.fujitsu.com> Acked-by: "Desai, Kashyap" <Kashyap.Desai@lsi.com> Signed-off-by: James Bottomley <James.Bottomley@suse.de>
Diffstat (limited to 'drivers/message')
-rw-r--r--drivers/message/fusion/mptsas.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/drivers/message/fusion/mptsas.c b/drivers/message/fusion/mptsas.c
index f42781b92bd..46cc90c9bfc 100644
--- a/drivers/message/fusion/mptsas.c
+++ b/drivers/message/fusion/mptsas.c
@@ -1261,7 +1261,7 @@ mptsas_taskmgmt_complete(MPT_ADAPTER *ioc, MPT_FRAME_HDR *mf, MPT_FRAME_HDR *mr)
* enable work queue to remove device from upper layers
*/
list_del(&target_reset_list->list);
- if ((mptsas_find_vtarget(ioc, channel, id)) && !ioc->fw_events_off)
+ if (!ioc->fw_events_off)
mptsas_queue_device_delete(ioc,
&target_reset_list->sas_event_data);