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authorBrian King <brking@linux.vnet.ibm.com>2008-08-15 19:59:21 +0400
committerJames Bottomley <James.Bottomley@HansenPartnership.com>2008-08-16 19:47:46 +0400
commit3eddc569770a76f2ca65621cdde3c0a2552b5b0c (patch)
treeacea9c8f9985dcac6630dc622d6682da55a2837a /drivers/scsi
parent004dd5e88673516a408f0e8e43edbe6a4424be2f (diff)
downloadlinux-3eddc569770a76f2ca65621cdde3c0a2552b5b0c.tar.xz
[SCSI] ibmvfc: Fix another hang on module removal
This fixes a hang on module removal. The module removal code was setting the hosts's state to IBMVFC_HOST_OFFLINE before tearing down the kernel thread, but, due to a bug in ibmvfc_wait_while_resetting, was not waiting for the kernel thread's offlining work to be done prior to destroying the kernel thread, which left the scsi host in a blocked state which we never got out of. Signed-off-by: Brian King <brking@linux.vnet.ibm.com> Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
Diffstat (limited to 'drivers/scsi')
-rw-r--r--drivers/scsi/ibmvscsi/ibmvfc.c7
1 files changed, 4 insertions, 3 deletions
diff --git a/drivers/scsi/ibmvscsi/ibmvfc.c b/drivers/scsi/ibmvscsi/ibmvfc.c
index ae560bc04f9d..ee11568d581f 100644
--- a/drivers/scsi/ibmvscsi/ibmvfc.c
+++ b/drivers/scsi/ibmvscsi/ibmvfc.c
@@ -1059,9 +1059,10 @@ static void ibmvfc_get_starget_port_id(struct scsi_target *starget)
static int ibmvfc_wait_while_resetting(struct ibmvfc_host *vhost)
{
long timeout = wait_event_timeout(vhost->init_wait_q,
- (vhost->state == IBMVFC_ACTIVE ||
- vhost->state == IBMVFC_HOST_OFFLINE ||
- vhost->state == IBMVFC_LINK_DEAD),
+ ((vhost->state == IBMVFC_ACTIVE ||
+ vhost->state == IBMVFC_HOST_OFFLINE ||
+ vhost->state == IBMVFC_LINK_DEAD) &&
+ vhost->action == IBMVFC_HOST_ACTION_NONE),
(init_timeout * HZ));
return timeout ? 0 : -EIO;