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scsi: use external buffer for command logging

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Use an external buffer for __scsi_print_command() and move command
logging over to use the per-cpu logging buffer.  With that we can
guarantee the command always will always be formatted in one line.
So we can even print out a variable length command correctly across
several lines. Finally rename __scsi_print_command() to
__scsi_format_comment() to better reflect the functionality.

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>
This commit is contained in:
Hannes Reinecke
2015-01-08 07:43:44 +01:00
committed by Christoph Hellwig
parent aa66ab35f2
commit 9e5ed2a5b3
6 changed files with 192 additions and 92 deletions
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3
include/scsi/scsi.h
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@@ -195,6 +195,9 @@ enum scsi_timeouts {
#define ATA_16 0x85 /* 16-byte pass-thru */
#define ATA_12 0xa1 /* 12-byte pass-thru */
/* Vendor specific CDBs start here */
#define VENDOR_SPECIFIC_CDB 0xc0
/*
* SCSI command lengths
*/