diff options
| author | Christof Schmitt <christof.schmitt@de.ibm.com> | 2009-03-02 13:08:59 +0100 |
|---|---|---|
| committer | James Bottomley <James.Bottomley@HansenPartnership.com> | 2009-03-12 18:58:19 +0100 |
| commit | 92cab0d93a1107ad7f6d827fde62d1aa4db15e86 (patch) | |
| tree | ad379f6e8c9b56c92b373a7953505b0d63c5e6cf | |
| parent | [SCSI] zfcp: Only increment req_id for successfully issued requests (diff) | |
| download | linux-92cab0d93a1107ad7f6d827fde62d1aa4db15e86.tar.xz linux-92cab0d93a1107ad7f6d827fde62d1aa4db15e86.zip | |
[SCSI] zfcp: Wait for free SBALs when possible
For calls from zfcp erp, scsi_eh and sysfs switch the calls issuing
FSF requests to zfcp_fsf_req_sbal_get to wait for free SBALs.
Acked-by: Swen Schillig <swen@vnet.ibm.com>
Signed-off-by: Christof Schmitt <christof.schmitt@de.ibm.com>
Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
| -rw-r--r-- | drivers/s390/scsi/zfcp_fsf.c | 18 |
1 files changed, 9 insertions, 9 deletions
diff --git a/drivers/s390/scsi/zfcp_fsf.c b/drivers/s390/scsi/zfcp_fsf.c index 14d7413b9e86..1b25158c50f0 100644 --- a/drivers/s390/scsi/zfcp_fsf.c +++ b/drivers/s390/scsi/zfcp_fsf.c @@ -929,8 +929,8 @@ struct zfcp_fsf_req *zfcp_fsf_abort_fcp_command(unsigned long old_req_id, struct qdio_buffer_element *sbale; struct zfcp_fsf_req *req = NULL; - spin_lock(&adapter->req_q_lock); - if (!zfcp_fsf_sbal_available(adapter)) + spin_lock_bh(&adapter->req_q_lock); + if (zfcp_fsf_req_sbal_get(adapter)) goto out; req = zfcp_fsf_req_create(adapter, FSF_QTCB_ABORT_FCP_CMND, req_flags, adapter->pool.fsf_req_abort); @@ -961,7 +961,7 @@ out_error_free: zfcp_fsf_req_free(req); req = NULL; out: - spin_unlock(&adapter->req_q_lock); + spin_unlock_bh(&adapter->req_q_lock); return req; } @@ -1225,7 +1225,7 @@ int zfcp_fsf_exchange_config_data(struct zfcp_erp_action *erp_action) int retval = -EIO; spin_lock_bh(&adapter->req_q_lock); - if (!zfcp_fsf_sbal_available(adapter)) + if (zfcp_fsf_req_sbal_get(adapter)) goto out; req = zfcp_fsf_req_create(adapter, FSF_QTCB_EXCHANGE_CONFIG_DATA, @@ -1321,7 +1321,7 @@ int zfcp_fsf_exchange_port_data(struct zfcp_erp_action *erp_action) return -EOPNOTSUPP; spin_lock_bh(&adapter->req_q_lock); - if (!zfcp_fsf_sbal_available(adapter)) + if (zfcp_fsf_req_sbal_get(adapter)) goto out; req = zfcp_fsf_req_create(adapter, FSF_QTCB_EXCHANGE_PORT_DATA, ZFCP_REQ_AUTO_CLEANUP, @@ -1367,7 +1367,7 @@ int zfcp_fsf_exchange_port_data_sync(struct zfcp_adapter *adapter, return -EOPNOTSUPP; spin_lock_bh(&adapter->req_q_lock); - if (!zfcp_fsf_sbal_available(adapter)) + if (zfcp_fsf_req_sbal_get(adapter)) goto out; req = zfcp_fsf_req_create(adapter, FSF_QTCB_EXCHANGE_PORT_DATA, 0, @@ -2452,8 +2452,8 @@ struct zfcp_fsf_req *zfcp_fsf_send_fcp_ctm(struct zfcp_adapter *adapter, ZFCP_STATUS_COMMON_UNBLOCKED))) return NULL; - spin_lock(&adapter->req_q_lock); - if (!zfcp_fsf_sbal_available(adapter)) + spin_lock_bh(&adapter->req_q_lock); + if (zfcp_fsf_req_sbal_get(adapter)) goto out; req = zfcp_fsf_req_create(adapter, FSF_QTCB_FCP_CMND, req_flags, adapter->pool.fsf_req_scsi); @@ -2487,7 +2487,7 @@ struct zfcp_fsf_req *zfcp_fsf_send_fcp_ctm(struct zfcp_adapter *adapter, zfcp_fsf_req_free(req); req = NULL; out: - spin_unlock(&adapter->req_q_lock); + spin_unlock_bh(&adapter->req_q_lock); return req; } |