> -----Original Message----- > From: Olaf Hering [mailto:olaf@xxxxxxxxx] > Sent: Monday, October 10, 2011 3:38 AM > To: KY Srinivasan > Cc: gregkh@xxxxxxx; linux-kernel@xxxxxxxxxxxxxxx; > devel@xxxxxxxxxxxxxxxxxxxxxx; virtualization@xxxxxxxxxxxxxx; Haiyang Zhang > Subject: [PATCH] staging: hv: storvsc: ignore SET_WINDOW scsi command > > Some commands sent by smartd will offline the device. > With this change applied, smartd sill not monitor the device anymore. > > Signed-off-by: Olaf Hering <olaf@xxxxxxxxx> > > --- > drivers/staging/hv/storvsc_drv.c | 20 ++++++++++++++++++++ > 1 file changed, 20 insertions(+) > > --- a/drivers/staging/hv/storvsc_drv.c > +++ b/drivers/staging/hv/storvsc_drv.c > @@ -1122,6 +1122,22 @@ static void storvsc_command_completion(s > kmem_cache_free(host_dev->request_pool, cmd_request); > } > > +static bool storvsc_check_scsi_cmd(struct scsi_cmnd *scmnd) > +{ > + bool allowed = true; > + u8 scsi_op = scmnd->cmnd[0]; > + > + switch (scsi_op) { > + /* smartd sends this command, which will offline the device */ > + case SET_WINDOW: > + scmnd->result = DID_ERROR << 16; > + allowed = false; > + break; > + default: > + break; > + } > + return allowed; > +} > > /* > * storvsc_queuecommand - Initiate command processing > @@ -1141,6 +1157,10 @@ static int storvsc_queuecommand_lck(stru > unsigned int sg_count = 0; > struct vmscsi_request *vm_srb; > > + if (storvsc_check_scsi_cmd(scmnd) == false) { > + done(scmnd); > + return 0; > + } > > /* If retrying, no need to prep the cmd */ > if (scmnd->host_scribble) { Acked-by: K. Y. Srinivasan <kys@xxxxxxxxxxxxx> Regards, K. Y _______________________________________________ devel mailing list devel@xxxxxxxxxxxxxxxxxxxxxx http://driverdev.linuxdriverproject.org/mailman/listinfo/devel
