Messages in this thread | | | Subject | Re: [PATCH] IB/mad: Use ID allocator routines to allocate agent number | From | Håkon Bugge <> | Date | Wed, 30 May 2018 22:07:16 +0200 |
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> On 30 May 2018, at 17:10, Jason Gunthorpe <jgg@ziepe.ca> 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, Håkon
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