diff options
Diffstat (limited to 'drivers/scsi/scsi_lib.c')
| -rw-r--r-- | drivers/scsi/scsi_lib.c | 20 |
1 files changed, 20 insertions, 0 deletions
diff --git a/drivers/scsi/scsi_lib.c b/drivers/scsi/scsi_lib.c index bf7342748f32..b83269689542 100644 --- a/drivers/scsi/scsi_lib.c +++ b/drivers/scsi/scsi_lib.c @@ -29,6 +29,8 @@ #include <scsi/scsi_eh.h> #include <scsi/scsi_host.h> +#include <trace/events/scsi.h> + #include "scsi_priv.h" #include "scsi_logging.h" @@ -1454,6 +1456,23 @@ static void scsi_softirq_done(struct request *rq) } } +/** + * scsi_done - Invoke completion on finished SCSI command. + * @cmd: The SCSI Command for which a low-level device driver (LLDD) gives + * ownership back to SCSI Core -- i.e. the LLDD has finished with it. + * + * Description: This function is the mid-level's (SCSI Core) interrupt routine, + * which regains ownership of the SCSI command (de facto) from a LLDD, and + * calls blk_complete_request() for further processing. + * + * This function is interrupt context safe. + */ +static void scsi_done(struct scsi_cmnd *cmd) +{ + trace_scsi_dispatch_cmd_done(cmd); + blk_complete_request(cmd->request); +} + /* * Function: scsi_request_fn() * @@ -1556,6 +1575,7 @@ static void scsi_request_fn(struct request_queue *q) /* * Dispatch the command to the low-level driver. */ + cmd->scsi_done = scsi_done; rtn = scsi_dispatch_cmd(cmd); if (rtn) { scsi_queue_insert(cmd, rtn); |