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[SCSI] zfcp: Only collect SCSI debug data for matching trace levels

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The default trace level is to only trace failed SCSI commands. Thus it
is not necessary to collect trace data for most SCSI commands since it
will be thrown away later. Restructure the SCSI trace infrastructure
to first check the trace level in a inline function and only do the
expensive data collection for matching trace levels.

Reviewed-by: Swen Schillig <swen@vnet.ibm.com>
Signed-off-by: Christof Schmitt <christof.schmitt@de.ibm.com>
Signed-off-by: James Bottomley <James.Bottomley@suse.de>
This commit is contained in:
Christof Schmitt
2009-08-18 15:43:08 +02:00
committed by James Bottomley
parent d46f384a89
commit dcd20e2316
5 changed files with 73 additions and 63 deletions
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11
drivers/s390/scsi/zfcp_ext.h
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@@ -57,14 +57,9 @@ extern void zfcp_san_dbf_event_ct_response(struct zfcp_fsf_req *);
extern void zfcp_san_dbf_event_els_request(struct zfcp_fsf_req *);
extern void zfcp_san_dbf_event_els_response(struct zfcp_fsf_req *);
extern void zfcp_san_dbf_event_incoming_els(struct zfcp_fsf_req *);
extern void zfcp_scsi_dbf_event_result(const char *, int, struct zfcp_adapter *,
struct scsi_cmnd *,
struct zfcp_fsf_req *);
extern void zfcp_scsi_dbf_event_abort(const char *, struct zfcp_adapter *,
struct scsi_cmnd *, struct zfcp_fsf_req *,
unsigned long);
extern void zfcp_scsi_dbf_event_devreset(const char *, u8, struct zfcp_unit *,
struct scsi_cmnd *);
extern void _zfcp_scsi_dbf_event(const char *, const char *, int,
struct zfcp_dbf *, struct scsi_cmnd *,
struct zfcp_fsf_req *, unsigned long);
/* zfcp_erp.c */
extern void zfcp_erp_modify_adapter_status(struct zfcp_adapter *, char *,