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4 Commits

Author SHA1 Message Date
Steven Rostedt (Red Hat)
7b039cb4c5 tracing: Add trace_seq_buffer_ptr() helper function 
There's several locations in the kernel that open code the calculation
of the next location in the trace_seq buffer. This is usually done with

  p->buffer + p->len

Instead of having this open coded, supply a helper function in the
header to do it for them. This function is called trace_seq_buffer_ptr().

Link: http://lkml.kernel.org/p/20140626220129.452783019@goodmis.org

Acked-by: Paolo Bonzini <pbonzini@redhat.com>
Signed-off-by: Steven Rostedt <rostedt@goodmis.org>
 2014-07-01 07:13:39 -04:00
Martin K. Petersen
c498bf1a1b [SCSI] scsi_trace: Decode UNMAP bit in WRITE SAME(10) 
As of SBC3r26 WRITE SAME(10) supports the UNMAP bit.

Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Signed-off-by: James Bottomley <jbottomley@parallels.com>
 2011-05-24 12:38:36 -04:00
Martin K. Petersen
c446c1f990 [SCSI] scsi_trace: Enhance SCSI command tracing 
Various SCSI trace enhancements:

 - Display data and protection information scatterlist lengths in the
   trace output

 - Add support for VERIFY and WRITE SAME commands and decode the UNMAP
   bit if applicable

 - Add decoding of the PROTECT field for READ/VERIFY/WRITE/WRITE SAME
   commands as well as the EXPECTED INITIAL REFERENCE TAG field for
   their 32-byte variants

 - Decode READ CAPACITY(16), GET LBA STATUS, and UNMAP

Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Signed-off-by: James Bottomley <James.Bottomley@suse.de>
 2010-04-30 12:52:08 -05:00
Kei Tokunaga
bf81623542 [SCSI] add scsi trace core functions and put trace points 
Signed-off-by: Xiao Guangrong <xiaoguangrong@cn.fujitsu.com>
Signed-off-by: Tomohiro Kusumi <kusumi.tomohiro@jp.fujitsu.com>
Signed-off-by: Kei Tokunaga <tokunaga.keiich@jp.fujitsu.com>
Signed-off-by: James Bottomley <James.Bottomley@suse.de>
 2010-04-30 12:51:10 -05:00