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[SCSI] libiscsi: fix shutdown

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We were using the device delete sysfs file to remove each device
then logout. Now in 2.6.21 this will not work because
the sysfs delete file returns immediately and does not wait for
the device removal to complete. This causes a hang if a cache sync
is needed during shutdown. Before .21, that approach had other
problems, so this patch fixes the shutdown code so that we remove the target
and unbind the session before logging out and shut down the session

Signed-off-by: Mike Christie <michaelc@cs.wisc.edu>
Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
This commit is contained in:
Mike Christie
2007-12-13 12:43:29 -06:00
committed by James Bottomley
parent bc436b2787
commit 2697478903
7 changed files with 179 additions and 147 deletions
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4
drivers/scsi/libiscsi.c
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@@ -1662,7 +1662,7 @@ void iscsi_session_teardown(struct iscsi_cls_session *cls_session)
struct iscsi_session *session = iscsi_hostdata(shost->hostdata);
struct module *owner = cls_session->transport->owner;
iscsi_unblock_session(cls_session);
iscsi_remove_session(cls_session);
scsi_remove_host(shost);
iscsi_pool_free(&session->mgmtpool);
@@ -1677,7 +1677,7 @@ void iscsi_session_teardown(struct iscsi_cls_session *cls_session)
kfree(session->hwaddress);
kfree(session->initiatorname);
iscsi_destroy_session(cls_session);
iscsi_free_session(cls_session);
scsi_host_put(shost);
module_put(owner);
}