diff options
| author | Mike Christie <michael.christie@oracle.com> | 2021-05-25 13:18:05 -0500 |
|---|---|---|
| committer | Martin K. Petersen <martin.petersen@oracle.com> | 2021-06-02 01:28:21 -0400 |
| commit | fda290c5ae98b591797c96e55a2cfbd30d46a706 (patch) | |
| tree | 1c78c0d9f7e9be96fd432b33273e09b3a84d7f3b | |
| parent | d39df158518ccc3bf24ee18082b5e100c8f014aa (diff) | |
| download | linux-fda290c5ae98b591797c96e55a2cfbd30d46a706.tar.bz2 | |
scsi: iscsi: Get ref to conn during reset handling
The comment in iscsi_eh_session_reset is wrong and we don't wait for the
EH to complete before tearing down the conn. This has us get a ref to the
conn when we are not holding the eh_mutex/frwd_lock so it does not get
freed from under us.
Link: https://lore.kernel.org/r/20210525181821.7617-13-michael.christie@oracle.com
Reviewed-by: Lee Duncan <lduncan@suse.com>
Signed-off-by: Mike Christie <michael.christie@oracle.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
| -rw-r--r-- | drivers/scsi/libiscsi.c | 10 |
1 files changed, 5 insertions, 5 deletions
diff --git a/drivers/scsi/libiscsi.c b/drivers/scsi/libiscsi.c index 6ca3d35a3d11..b7445d9e99d6 100644 --- a/drivers/scsi/libiscsi.c +++ b/drivers/scsi/libiscsi.c @@ -2492,7 +2492,6 @@ int iscsi_eh_session_reset(struct scsi_cmnd *sc) cls_session = starget_to_session(scsi_target(sc->device)); session = cls_session->dd_data; - conn = session->leadconn; mutex_lock(&session->eh_mutex); spin_lock_bh(&session->frwd_lock); @@ -2507,13 +2506,14 @@ failed: return FAILED; } + conn = session->leadconn; + iscsi_get_conn(conn->cls_conn); + spin_unlock_bh(&session->frwd_lock); mutex_unlock(&session->eh_mutex); - /* - * we drop the lock here but the leadconn cannot be destoyed while - * we are in the scsi eh - */ + iscsi_conn_failure(conn, ISCSI_ERR_SCSI_EH_SESSION_RST); + iscsi_put_conn(conn->cls_conn); ISCSI_DBG_EH(session, "wait for relogin\n"); wait_event_interruptible(conn->ehwait, |