diff options
author | Hannes Reinecke <hare@suse.de> | 2015-01-08 06:43:47 (GMT) |
---|---|---|
committer | Christoph Hellwig <hch@lst.de> | 2015-01-09 14:44:31 (GMT) |
commit | 026f8da8da4ce3423bf89e8e9091f55ae3863eda (patch) | |
tree | c4a4fef7a66a6ba9d331f3ea2e07b982d935e028 | |
parent | 2104551969e8011e72788dc5674609d437448cf6 (diff) | |
download | linux-026f8da8da4ce3423bf89e8e9091f55ae3863eda.tar.xz |
scsi: use per-cpu buffer for formatting scsi_print_result()
Convert scsi_print_result() to use the per-cpu buffer for decoding the
command result and disposition.
Tested-by: Robert Elliott <elliott@hp.com>
Reviewed-by: Robert Elliott <elliott@hp.com>
Signed-off-by: Hannes Reinecke <hare@suse.de>
Signed-off-by: Christoph Hellwig <hch@lst.de>
-rw-r--r-- | drivers/scsi/constants.c | 22 | ||||
-rw-r--r-- | drivers/scsi/scsi.c | 2 | ||||
-rw-r--r-- | drivers/scsi/scsi_logging.c | 59 | ||||
-rw-r--r-- | include/scsi/scsi_dbg.h | 2 |
4 files changed, 61 insertions, 24 deletions
diff --git a/drivers/scsi/constants.c b/drivers/scsi/constants.c index a23ef75..956fbdd 100644 --- a/drivers/scsi/constants.c +++ b/drivers/scsi/constants.c @@ -1316,25 +1316,3 @@ const char *scsi_mlreturn_string(int result) return NULL; } EXPORT_SYMBOL(scsi_mlreturn_string); - -void scsi_print_result(struct scsi_cmnd *cmd, const char *msg, int disposition) -{ - const char *mlret_string = scsi_mlreturn_string(disposition); - const char *hb_string = scsi_hostbyte_string(cmd->result); - const char *db_string = scsi_driverbyte_string(cmd->result); - - if (hb_string || db_string) - scmd_printk(KERN_INFO, cmd, - "%s%s Result: hostbyte=%s driverbyte=%s", - msg ? msg : "", - mlret_string ? mlret_string : "UNKNOWN", - hb_string ? hb_string : "invalid", - db_string ? db_string : "invalid"); - else - scmd_printk(KERN_INFO, cmd, - "%s%s Result: hostbyte=0x%02x driverbyte=0x%02x", - msg ? msg : "", - mlret_string ? mlret_string : "UNKNOWN", - host_byte(cmd->result), driver_byte(cmd->result)); -} -EXPORT_SYMBOL(scsi_print_result); diff --git a/drivers/scsi/scsi.c b/drivers/scsi/scsi.c index e028854..7f028cb 100644 --- a/drivers/scsi/scsi.c +++ b/drivers/scsi/scsi.c @@ -572,7 +572,7 @@ void scsi_log_completion(struct scsi_cmnd *cmd, int disposition) SCSI_LOG_MLCOMPLETE_BITS); if (((level > 0) && (cmd->result || disposition != SUCCESS)) || (level > 1)) { - scsi_print_result(cmd, "Done: ", disposition); + scsi_print_result(cmd, "Done", disposition); scsi_print_command(cmd); if (status_byte(cmd->result) & CHECK_CONDITION) scsi_print_sense(cmd); diff --git a/drivers/scsi/scsi_logging.c b/drivers/scsi/scsi_logging.c index c7cba31..6128303 100644 --- a/drivers/scsi/scsi_logging.c +++ b/drivers/scsi/scsi_logging.c @@ -428,3 +428,62 @@ void scsi_print_sense(const struct scsi_cmnd *cmd) cmd->sense_buffer, SCSI_SENSE_BUFFERSIZE); } EXPORT_SYMBOL(scsi_print_sense); + +void scsi_print_result(const struct scsi_cmnd *cmd, const char *msg, + int disposition) +{ + char *logbuf; + size_t off, logbuf_len; + const char *mlret_string = scsi_mlreturn_string(disposition); + const char *hb_string = scsi_hostbyte_string(cmd->result); + const char *db_string = scsi_driverbyte_string(cmd->result); + + logbuf = scsi_log_reserve_buffer(&logbuf_len); + if (!logbuf) + return; + + off = sdev_format_header(logbuf, logbuf_len, + scmd_name(cmd), cmd->request->tag); + + if (off >= logbuf_len) + goto out_printk; + + if (msg) { + off += scnprintf(logbuf + off, logbuf_len - off, + "%s: ", msg); + if (WARN_ON(off >= logbuf_len)) + goto out_printk; + } + if (mlret_string) + off += scnprintf(logbuf + off, logbuf_len - off, + "%s ", mlret_string); + else + off += scnprintf(logbuf + off, logbuf_len - off, + "UNKNOWN(0x%02x) ", disposition); + if (WARN_ON(off >= logbuf_len)) + goto out_printk; + + off += scnprintf(logbuf + off, logbuf_len - off, "Result: "); + if (WARN_ON(off >= logbuf_len)) + goto out_printk; + + if (hb_string) + off += scnprintf(logbuf + off, logbuf_len - off, + "hostbyte=%s ", hb_string); + else + off += scnprintf(logbuf + off, logbuf_len - off, + "hostbyte=0x%02x ", host_byte(cmd->result)); + if (WARN_ON(off >= logbuf_len)) + goto out_printk; + + if (db_string) + off += scnprintf(logbuf + off, logbuf_len - off, + "driverbyte=%s", db_string); + else + off += scnprintf(logbuf + off, logbuf_len - off, + "driverbyte=0x%02x", driver_byte(cmd->result)); +out_printk: + dev_printk(KERN_INFO, &cmd->device->sdev_gendev, logbuf); + scsi_log_release_buffer(logbuf); +} +EXPORT_SYMBOL(scsi_print_result); diff --git a/include/scsi/scsi_dbg.h b/include/scsi/scsi_dbg.h index c7ed7b8..365b674 100644 --- a/include/scsi/scsi_dbg.h +++ b/include/scsi/scsi_dbg.h @@ -21,7 +21,7 @@ extern void scsi_print_sense(const struct scsi_cmnd *); extern void __scsi_print_sense(const struct scsi_device *, const char *name, const unsigned char *sense_buffer, int sense_len); -extern void scsi_print_result(struct scsi_cmnd *, const char *, int); +extern void scsi_print_result(const struct scsi_cmnd *, const char *, int); extern const char *scsi_hostbyte_string(int); extern const char *scsi_driverbyte_string(int); extern const char *scsi_mlreturn_string(int); |