diff options
| author | Olaf Hering <olaf@aepfle.de> | 2011-10-10 09:37:39 +0200 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@suse.de> | 2011-10-10 22:50:00 -0600 |
| commit | 92ae4ebdaa6d6d083a53421715e5cdc70ab5823e (patch) | |
| tree | 08171c23d7c8884cb136182dce272f6a54baf9e1 /drivers | |
| parent | e2bb65378385a10e21612845e33cd5936e0cbadb (diff) | |
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@aepfle.de>
Acked-by: K. Y. Srinivasan <kys@microsoft.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Diffstat (limited to 'drivers')
| -rw-r--r-- | drivers/staging/hv/storvsc_drv.c | 20 |
1 files changed, 20 insertions, 0 deletions
diff --git a/drivers/staging/hv/storvsc_drv.c b/drivers/staging/hv/storvsc_drv.c index 807c94d711c7..e41271632609 100644 --- a/drivers/staging/hv/storvsc_drv.c +++ b/drivers/staging/hv/storvsc_drv.c @@ -1122,6 +1122,22 @@ static void storvsc_command_completion(struct hv_storvsc_request *request) 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(struct scsi_cmnd *scmnd, 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) { |