On 07/22/11 22:47, Boaz Harrosh wrote:
> On 07/22/2011 09:41 AM, Jonathan Cameron wrote:
>> This does involve additional use of the spin lock in idr.c.
>> Is this an issue?
>>
>
> Actually it looks like a bug fix. I had a TODO: to add one.
>
>> Also, some error mangling was needed to keep the interface
>> the same. Does this matter or can we return -ENOSPC instead
>> of -EBUSY?
>>
>
> Na. -ENOSPC is just fine. All the osd Application just check for
> "any error" not a specific one.
Cool, I've scrapped the error mangling and added your acked-by
+ removed questions from commit message as you've answered them!
Thanks,
>
>> Signed-off-by: Jonathan Cameron <jic23@xxxxxxxxx>
>
> Ack-by: Boaz Harrosh <bharrosh@xxxxxxxxxxx>
>
>> ---
>> drivers/scsi/osd/osd_uld.c | 22 ++++++++--------------
>> 1 files changed, 8 insertions(+), 14 deletions(-)
>>
>> diff --git a/drivers/scsi/osd/osd_uld.c b/drivers/scsi/osd/osd_uld.c
>> index b31a8e3..fa849bd 100644
>> --- a/drivers/scsi/osd/osd_uld.c
>> +++ b/drivers/scsi/osd/osd_uld.c
>> @@ -387,7 +387,7 @@ static void __remove(struct device *dev)
>>
>> if (oud->disk)
>> put_disk(oud->disk);
>> - ida_remove(&osd_minor_ida, oud->minor);
>> + ida_simple_remove(&osd_minor_ida, oud->minor);
>>
>> kfree(oud);
>> }
>> @@ -403,18 +403,12 @@ static int osd_probe(struct device *dev)
>> if (scsi_device->type != TYPE_OSD)
>> return -ENODEV;
>>
>> - do {
>> - if (!ida_pre_get(&osd_minor_ida, GFP_KERNEL))
>> - return -ENODEV;
>> -
>> - error = ida_get_new(&osd_minor_ida, &minor);
>> - } while (error == -EAGAIN);
>> -
>> - if (error)
>> - return error;
>> - if (minor >= SCSI_OSD_MAX_MINOR) {
>> - error = -EBUSY;
>> - goto err_retract_minor;
>> + minor = ida_simple_get(&osd_minor_ida, 0,
>> + SCSI_OSD_MAX_MINOR, GFP_KERNEL);
>> + if (minor < 0) {
>> + if (minor == -ENOSPC)
>> + return -EBUSY;
>
> Just drop the translation is fine as well
>
>> + return minor;
>> }
>>
>> error = -ENOMEM;
>> @@ -491,7 +485,7 @@ err_free_osd:
>> dev_set_drvdata(dev, NULL);
>> kfree(oud);
>> err_retract_minor:
>> - ida_remove(&osd_minor_ida, minor);
>> + ida_simple_remove(&osd_minor_ida, minor);
>> return error;
>> }
>>
>
>
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