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| author | Kei Tokunaga <tokunaga.keiich@jp.fujitsu.com> | 2010-04-01 13:41:40 +0200 |
|---|---|---|
| committer | James Bottomley <James.Bottomley@suse.de> | 2010-04-30 19:51:10 +0200 |
| commit | bf81623542332bc2cedf3db49cbb2edb724780d2 (patch) | |
| tree | 47e4b784fefd533251b58ae1c2d8c8d280242bcf /drivers/scsi/scsi.c | |
| parent | [SCSI] ftrace: add __print_hex() (diff) | |
| download | linux-bf81623542332bc2cedf3db49cbb2edb724780d2.tar.xz linux-bf81623542332bc2cedf3db49cbb2edb724780d2.zip | |
[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>
Diffstat (limited to 'drivers/scsi/scsi.c')
| -rw-r--r-- | drivers/scsi/scsi.c | 6 |
1 files changed, 6 insertions, 0 deletions
diff --git a/drivers/scsi/scsi.c b/drivers/scsi/scsi.c index 1c08f6164658..ad0ed212db4a 100644 --- a/drivers/scsi/scsi.c +++ b/drivers/scsi/scsi.c @@ -67,6 +67,9 @@ #include "scsi_priv.h" #include "scsi_logging.h" +#define CREATE_TRACE_POINTS +#include <trace/events/scsi.h> + static void scsi_done(struct scsi_cmnd *cmd); /* @@ -747,10 +750,12 @@ int scsi_dispatch_cmd(struct scsi_cmnd *cmd) cmd->result = (DID_NO_CONNECT << 16); scsi_done(cmd); } else { + trace_scsi_dispatch_cmd_start(cmd); rtn = host->hostt->queuecommand(cmd, scsi_done); } spin_unlock_irqrestore(host->host_lock, flags); if (rtn) { + trace_scsi_dispatch_cmd_error(cmd, rtn); if (rtn != SCSI_MLQUEUE_DEVICE_BUSY && rtn != SCSI_MLQUEUE_TARGET_BUSY) rtn = SCSI_MLQUEUE_HOST_BUSY; @@ -781,6 +786,7 @@ int scsi_dispatch_cmd(struct scsi_cmnd *cmd) */ static void scsi_done(struct scsi_cmnd *cmd) { + trace_scsi_dispatch_cmd_done(cmd); blk_complete_request(cmd->request); } |