Re: [PATCH] IB/mad: Use ID allocator routines to allocate agent number

[HÃkon Bugge]

> On 30 May 2018, at 17:10, Jason Gunthorpe <jgg@xxxxxxxx> wrote:
> 
> On Wed, May 30, 2018 at 02:22:56PM +0200, Hans Westgaard Ry wrote:
> 
>> We came up with this code snippet which we think handles both preventing
>> immediate re-use and too big/wrapping...
> 
> Isn't this basically the same as idr_alloc_cyclic ?

I draw my statement back. The idr_alloc_cyclic() is the family of idr's that associates a pointer with the bit. Hence, each bit is a bit + 64b.

That's why we ended up with Hans' pseudo code.


Thxs, HÃkon


> 
> Jason
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