Re: RFC: Boiler plate functions for ida / idr allocation?

[Tejun Heo]

(cc'ing Rusty Russell)
Hello,

On Wed, Jul 13, 2011 at 10:44:32AM +0100, Jonathan Cameron wrote:
> The other thing this highlights is that I suspect quite a few are protected by
> spin locks when a mutex would be fine. Hence that might be worth tidying up first.
> 
> Anyhow, a cleanup worth making? (obviously the exact form needs some work, but
> I think the following is enough to start a discussion!)
> 
> Subject: [PATCH] ida utility function

Rusty suggested similar addition some weeks ago, so people are really
getting annoyed by this.

  http://thread.gmane.org/gmane.linux.kernel/1148513/focus=74236

Here's an interface that I think should work,

	int ida_get(struct ida *ida, int begin, int end, gfp_t gfp);

It uses an internal spinlock, returns the allocated ID and @end <= 0
indicates no limit.

Thanks.

-- 
tejun
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