linux-kernel - Re: [dm-devel] idr_get_new

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Message-ID: <20100920213825.GF30622@agk-dp.fab.redhat.com>
Date:	Mon, 20 Sep 2010 22:38:25 +0100
From:	Alasdair G Kergon <agk@...hat.com>
To:	device-mapper development <dm-devel@...hat.com>,
	Roland Dreier <rdreier@...co.com>,
	Ohad Ben-Cohen <ohad@...ery.com>, akpm@...ux-foundation.org,
	Steve Wise <swise@...lsio.com>, linux-ppp@...r.kernel.org,
	linux-kernel@...r.kernel.org, linux-raid@...r.kernel.org,
	linux-rdma@...r.kernel.org, Paul Mackerras <paulus@...ba.org>,
	linux-i2c@...r.kernel.org,
	"Ben Dooks (embedded platforms)" <ben-linux@...ff.org>,
	netdev@...r.kernel.org,
	"Jean Delvare (PC drivers, core)" <khali@...ux-fr.org>,
	Sean Hefty <sean.hefty@...el.com>,
	Roland Dreier <rolandd@...co.com>,
	Hal Rosenstock <hal.rosenstock@...il.com>
Subject: Re: [dm-devel] idr_get_new_exact ?

On Mon, Sep 20, 2010 at 11:26:47PM +0200, Tejun Heo wrote:
> I agree.  Wouldn't those users better off simply using radix tree?
 
Can't speak for the other users, but dm uses it both ways - normally
happy with any id (minor number), but sometimes user requires a specific
one.

Alasdair

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