linux-kernel - Re: [PATCH 1/3] posix-timers: remove idr

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Message-ID: <1307738438.2872.7.camel@edumazet-laptop>
Date:	Fri, 10 Jun 2011 22:40:38 +0200
From:	Eric Dumazet <eric.dumazet@...il.com>
To:	Andi Kleen <andi@...stfloor.org>
Cc:	linux-kernel@...r.kernel.org, tglx@...utronix.de,
	Andi Kleen <ak@...ux.intel.com>
Subject: Re: [PATCH 1/3] posix-timers: remove idr_lock

Le vendredi 10 juin 2011 à 13:13 -0700, Andi Kleen a écrit :
> From: Andi Kleen <ak@...ux.intel.com>
> 
> idr_lock is only used to protect the global posix_timers idr,
> but idr does its own locking (or RCUing) anyways and doesn't
> need it. So remove it.

Are you sure of this assertion Andi ?

I believe we need an external synchronization before calling
idr_remove() / idr_get_new()



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