[dm-devel] [PATCH 05/18] block: allow specifying size for extra command data

[Jens Axboe]

On 01/27/2017 10:21 AM, Bart Van Assche wrote:
> On Fri, 2017-01-27 at 17:12 +0100, Christoph Hellwig wrote:
>> On Wed, Jan 25, 2017 at 10:15:55PM -0500, Martin K. Petersen wrote:
>>> +static void *alloc_request_size(gfp_t gfp_mask, void *data)
>>>
>>> I like alloc_request_simple() but alloc_request_size() seems a bit
>>> contrived. _reserve? _extra? _special? Don't have any good suggestions,
>>> I'm afraid.
>>
>> Not that I'm a fan of _size, but I like the other suggestions even less.
> 
> Hello Christoph and Martin,
> 
> How about using the function names alloc_full_request() / free_full_request()
> together with a comment that mentions that cmd_size is set by the LLD?

Since we use pdu in other places, how about alloc_request_pdu() or
alloc_request_with_pdu()?

And since it's all queued up, any bike shedding changes will have to be
incremental.

-- 
Jens Axboe