From: Paolo Bonzini <pbonzini@redhat.com>
Subject: Re: [PATCH 2/2] ppc: kvm: use anon_inode_getfd() with O_CLOEXEC flag
Date: Mon, 26 Aug 2013 10:28:50 +0200
Message-ID: <521B11C2.3040801@redhat.com>
References: <cover.1377372576.git.ydroneaud@opteya.com> <b7ae23be3a3d4a2f57eca6cfc7f9361da883ceca.1377372576.git.ydroneaud@opteya.com> <3557EF65-4327-4DAE-999A-B0EE13C433F5@suse.de> <521B0622.9090208@redhat.com> <156342996ba92cb5f49519b0c2e9d6ac@meuh.org>
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Cc: Alexander Graf <agraf@suse.de>, Gleb Natapov <gleb@redhat.com>,
	Benjamin Herrenschmidt <benh@kernel.crashing.org>,
	Paul Mackerras <paulus@samba.org>,
	Alex Williamson <alex.williamson@redhat.com>,
	kvm-ppc@vger.kernel.org, kvm@vger.kernel.org,
	linuxppc-dev@lists.ozlabs.org, linux-kernel@vger.kernel.org,
	Paolo Bonzini <paolo.bonzini@gmail.com>
To: Yann Droneaud <ydroneaud@opteya.com>
Return-path: <kvm-ppc-owner@vger.kernel.org>
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Il 26/08/2013 10:23, Yann Droneaud ha scritto:
> 
> Sounds a lot like InfiniBand subsystem behavor: IB file descriptors
> are of no use accross exec() since memory mappings tied to those fds
> won't be available in the new process:
> 
> https://lkml.org/lkml/2013/7/8/380
> http://mid.gmane.org/f58540dc64fec1ac0e496dfcd3cc1af7@meuh.org

Yes, it is very similar.

Paolo