On Fri, 1 May 2009 19:30:00 -0700
David VomLehn <dvomlehn@xxxxxxxxx> wrote:
> From: Alan Stern <stern@xxxxxxxxxxxxxxxxxxx
>
> Add notification of device discovery for USB and SCSI block devices.
>
> History
> v3 Change bootdev_* to initdev_*
> v2 Correct location of call to bootdev_found
> v1 Initial version
>
> Signed-off-by: Alan Stern <stern@xxxxxxxxxxxxxxxxxxx
> Signed-off-by: David VomLehn <dvomlehn@xxxxxxxxx>
> ---
> drivers/scsi/scsi_scan.c | 2 ++
> drivers/usb/storage/usb.c | 3 +++
> 2 files changed, 5 insertions(+), 0 deletions(-)
>
> diff --git a/drivers/scsi/scsi_scan.c b/drivers/scsi/scsi_scan.c
> index 6f51ca4..735b061 100644
> --- a/drivers/scsi/scsi_scan.c
> +++ b/drivers/scsi/scsi_scan.c
> @@ -1834,6 +1834,7 @@ static int do_scan_async(void *_data)
> struct async_scan_data *data = _data;
> do_scsi_scan_host(data->shost);
> scsi_finish_async_scan(data);
> + initdev_probe_done(BOOTDEV_BLOCK_MASK);
Which code are waiting for the block device's probe done?
> return 0;
> }
>
> @@ -1855,6 +1856,7 @@ void scsi_scan_host(struct Scsi_Host *shost)
> return;
> }
>
> + initdev_found(BOOTDEV_BLOCK_MASK);
> p = kthread_run(do_scan_async, data, "scsi_scan_%d",
> shost->host_no); if (IS_ERR(p))
> do_scan_async(data);
> diff --git a/drivers/usb/storage/usb.c b/drivers/usb/storage/usb.c
> index 8060b85..ea7abab 100644
> --- a/drivers/usb/storage/usb.c
> +++ b/drivers/usb/storage/usb.c
> @@ -837,6 +837,7 @@ static int usb_stor_scan_thread(void * __us)
> /* Should we unbind if no devices were detected? */
> }
>
> + initdev_probe_done(BOOTDEV_BLOCK_MASK);
the same question with above.
> complete_and_exit(&us->scanning_done, 0);
> }
>
> @@ -937,10 +938,12 @@ int usb_stor_probe2(struct us_data *us)
> }
>
> /* Start up the thread for delayed SCSI-device scanning */
> + initdev_found(BOOTDEV_BLOCK_MASK);
> th = kthread_create(usb_stor_scan_thread, us,
> "usb-stor-scan"); if (IS_ERR(th)) {
> printk(KERN_WARNING USB_STORAGE
> "Unable to start the device-scanning
> thread\n");
> + initdev_probe_done(BOOTDEV_BLOCK_MASK);
the same question with above.
> complete(&us->scanning_done);
> quiesce_and_remove_host(us);
> result = PTR_ERR(th);
> --
--
Lei Ming
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