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Re: [dm-devel] [PATCH 2/2] dm-mpath: Allow 'default' hardware handler



On 04/02/2012 07:04 PM, Mike Snitzer wrote:
> On Mon, Apr 02 2012 at 12:43pm -0400,
> Hannes Reinecke <hare suse de> wrote:
> 
>> This patch introduces a 'default' hardware handler for dm-mpath.
>> When specifying '1 default' dm-multipath will be using the currently
>> attached hardware handler.
>>
>> Signed-off-by: Hannes Reinecke <hare suse de>
>> ---
>>  drivers/md/dm-mpath.c |    8 ++++++--
>>  1 files changed, 6 insertions(+), 2 deletions(-)
>>
>> diff --git a/drivers/md/dm-mpath.c b/drivers/md/dm-mpath.c
>> index 922a338..bbf950f 100644
>> --- a/drivers/md/dm-mpath.c
>> +++ b/drivers/md/dm-mpath.c
>> @@ -586,15 +586,19 @@ static struct pgpath *parse_path(struct dm_arg_set *as, struct path_selector *ps
>>  
>>  	if (m->hw_handler_name) {
>>  		struct request_queue *q = bdev_get_queue(p->path.dev->bdev);
>> +		char *hw_handler = NULL;
>>  
>> -		r = scsi_dh_attach(q, m->hw_handler_name);
>> +		if (strncmp(m->hw_handler_name, "default", 6))
>> +			hw_handler = m->hw_handler_name;
> 
> Should be: if (strncmp(m->hw_handler_name, "default", 7))
A-hem.

Counting by hand is at times tricky.
I'll be sending an updated patchset.

Cheers,

Hannes
-- 
Dr. Hannes Reinecke		      zSeries & Storage
hare suse de			      +49 911 74053 688
SUSE LINUX Products GmbH, Maxfeldstr. 5, 90409 Nürnberg
GF: J. Hawn, J. Guild, F. Imendörffer, HRB 16746 (AG Nürnberg)


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