From: Mike Christie <michaelc@xxxxxxxxxxx>
The driver does not need the host lock in queuecommand so drop it.
Signed-off-by: Mike Christie <michaelc@xxxxxxxxxxx>
---
drivers/scsi/libiscsi.c | 6 +++++-
1 files changed, 5 insertions(+), 1 deletions(-)
diff --git a/drivers/scsi/libiscsi.c b/drivers/scsi/libiscsi.c
index 4461317..b0bc8c3 100644
--- a/drivers/scsi/libiscsi.c
+++ b/drivers/scsi/libiscsi.c
@@ -1010,8 +1010,9 @@ int iscsi_queuecommand(struct scsi_cmnd *sc, void (*done)(struct scsi_cmnd *))
sc->SCp.ptr = NULL;
host = sc->device->host;
- session = iscsi_hostdata(host->hostdata);
+ spin_unlock(host->host_lock);
+ session = iscsi_hostdata(host->hostdata);
spin_lock(&session->lock);
/*
@@ -1077,11 +1078,13 @@ int iscsi_queuecommand(struct scsi_cmnd *sc, void (*done)(struct scsi_cmnd *))
spin_unlock(&session->lock);
scsi_queue_work(host, &conn->xmitwork);
+ spin_lock(host->host_lock);
return 0;
reject:
spin_unlock(&session->lock);
debug_scsi("cmd 0x%x rejected (%d)\n", sc->cmnd[0], reason);
+ spin_lock(host->host_lock);
return SCSI_MLQUEUE_HOST_BUSY;
fault:
@@ -1091,6 +1094,7 @@ fault:
sc->result = (DID_NO_CONNECT << 16);
scsi_set_resid(sc, scsi_bufflen(sc));
sc->scsi_done(sc);
+ spin_lock(host->host_lock);
return 0;
}
EXPORT_SYMBOL_GPL(iscsi_queuecommand);
--
1.5.1.2
-
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