mirror of
https://github.com/torvalds/linux.git
synced 2024-12-10 05:01:26 +00:00
tcm_loop: Set residual field for SCSI commands
If the target core signals an over- or under-run, tcm_loop should call scsi_set_resid() to tell the SCSI midlayer about the residual data length. The difference can be seen by doing something like strace -eioctl sg_raw -r 1024 /dev/sda 8 0 0 0 1 0 > /dev/null and looking at the "resid=" part of the SG_IO ioctl -- after this patch, the field is correctly reported as 512. Signed-off-by: Roland Dreier <roland@purestorage.com> Cc: stable@vger.kernel.org Signed-off-by: Nicholas Bellinger <nab@linux-iscsi.org>
This commit is contained in:
parent
015487b89f
commit
6cf3fa6918
@ -829,6 +829,9 @@ static int tcm_loop_queue_data_in(struct se_cmd *se_cmd)
|
||||
|
||||
sc->result = SAM_STAT_GOOD;
|
||||
set_host_byte(sc, DID_OK);
|
||||
if ((se_cmd->se_cmd_flags & SCF_OVERFLOW_BIT) ||
|
||||
(se_cmd->se_cmd_flags & SCF_UNDERFLOW_BIT))
|
||||
scsi_set_resid(sc, se_cmd->residual_count);
|
||||
sc->scsi_done(sc);
|
||||
return 0;
|
||||
}
|
||||
@ -854,6 +857,9 @@ static int tcm_loop_queue_status(struct se_cmd *se_cmd)
|
||||
sc->result = se_cmd->scsi_status;
|
||||
|
||||
set_host_byte(sc, DID_OK);
|
||||
if ((se_cmd->se_cmd_flags & SCF_OVERFLOW_BIT) ||
|
||||
(se_cmd->se_cmd_flags & SCF_UNDERFLOW_BIT))
|
||||
scsi_set_resid(sc, se_cmd->residual_count);
|
||||
sc->scsi_done(sc);
|
||||
return 0;
|
||||
}
|
||||
|
Loading…
Reference in New Issue
Block a user