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From: Eric Blake <eblake@redhat.com>
To: "Michael S. Tsirkin" <mst@redhat.com>, qemu-devel@nongnu.org
Cc: kwolf@redhat.com, armbru@redhat.com, dgilbert@redhat.com
Subject: Re: [Qemu-devel] [PATCH RFC 1/3] error: don't rely on pointer comparisons
Date: Tue, 16 Jun 2015 08:45:05 -0600	[thread overview]
Message-ID: <55803671.50208@redhat.com> (raw)
In-Reply-To: <1434458200-23440-2-git-send-email-mst@redhat.com>

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On 06/16/2015 06:53 AM, Michael S. Tsirkin wrote:
> makes it possible to copy error_abort pointers,
> not just pass them on directly.
> 
> Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
> ---
>  util/error.c | 16 +++++++++++-----
>  1 file changed, 11 insertions(+), 5 deletions(-)

Where is this patch needed?

Is the goal to allow:

Error err = error_abort;

as a way to statically initialize err via copy to behave the same as the
global error_abort?

But that's not how you were using it in patch 3.  There, you were
initializing Error *, so using &error_abort is still useful there, and
pointer equality still suffices.

I don't see a convincing use for this patch.

-- 
Eric Blake   eblake redhat com    +1-919-301-3266
Libvirt virtualization library http://libvirt.org


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  reply	other threads:[~2015-06-16 14:52 UTC|newest]

Thread overview: 17+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2015-06-16 12:53 [Qemu-devel] [PATCH RFC 0/3] error: allow local errors to trigger abort Michael S. Tsirkin
2015-06-16 12:53 ` [Qemu-devel] [PATCH RFC 1/3] error: don't rely on pointer comparisons Michael S. Tsirkin
2015-06-16 14:45   ` Eric Blake [this message]
2015-06-16 14:49     ` Michael S. Tsirkin
2015-06-16 14:50     ` Eric Blake
2015-06-16 15:03   ` Eric Blake
2015-06-17  6:57     ` Michael S. Tsirkin
2015-06-17  9:11       ` Kevin Wolf
2015-06-16 12:53 ` [Qemu-devel] [PATCH RFC 2/3] error: allow local errors to trigger abort Michael S. Tsirkin
2015-06-16 15:06   ` Eric Blake
2015-06-16 12:53 ` [Qemu-devel] [PATCH RFC 3/3] block/nfs: switch to error_init_local Michael S. Tsirkin
2015-06-16 15:08   ` Eric Blake
2015-06-16 21:17     ` Michael S. Tsirkin
2015-06-17 14:26 ` [Qemu-devel] [PATCH RFC 0/3] error: allow local errors to trigger abort John Snow
2015-06-17 14:28   ` Michael S. Tsirkin
2015-06-17 14:29   ` Kevin Wolf
2015-06-17 14:30     ` John Snow

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