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From: Mark McLoughlin <markmc@redhat.com>
To: Christoph Hellwig <hch@lst.de>
Cc: Jan Kiszka <jan.kiszka@siemens.com>,
	Anthony Liguori <aliguori@us.ibm.com>,
	qemu-devel@nongnu.org
Subject: Re: [Qemu-devel] [PATCH 2/9] struct iovec is now universally available
Date: Wed, 15 Apr 2009 18:25:09 +0100	[thread overview]
Message-ID: <1239816309.4431.169.camel@blaa> (raw)
In-Reply-To: <20090415165513.GA14504@lst.de>

On Wed, 2009-04-15 at 18:55 +0200, Christoph Hellwig wrote:
> On Wed, Apr 15, 2009 at 05:29:22PM +0100, Mark McLoughlin wrote:
> > struct iovec is now defined in qemu-common.h if needed, so we don't need
> > the tap code to handle !defined(HAVE_IOVEC).
> 
> But is the writev system call also universally available?

Fair point.

I don't know of anywhere that qemu currently builds where writev() isn't
available ... do you?

>From looking at the history, I got the impression that HAVE_IOVEC was
only for windows and that doesn't use this code.

Also, if it is something we want to handle, then we should do it by
checking for writev() in configure and using HAVE_WRITEV

Cheers,
Mark.

  reply	other threads:[~2009-04-15 17:25 UTC|newest]

Thread overview: 60+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2009-04-15 16:29 [Qemu-devel] [PATCH 0/9] Misc networking fixes Mark McLoughlin
2009-04-15 16:29 ` [Qemu-devel] [PATCH 1/9] Remove stray GSO code from virtio_net Mark McLoughlin
2009-04-15 16:29   ` [Qemu-devel] [PATCH 2/9] struct iovec is now universally available Mark McLoughlin
2009-04-15 16:29     ` [Qemu-devel] [PATCH 3/9] Fix error handling in net_client_init() Mark McLoughlin
2009-04-15 16:29       ` [Qemu-devel] [PATCH 4/9] Don't fail PCI hotplug if no NIC model is supplied Mark McLoughlin
2009-04-15 16:29         ` [Qemu-devel] [PATCH 5/9] Remove some useless malloc() checking Mark McLoughlin
2009-04-15 16:29           ` [Qemu-devel] [PATCH 6/9] Remove NICInfo from e1000 and mipsnet state Mark McLoughlin
2009-04-15 16:29             ` [Qemu-devel] [PATCH 7/9] Add unregister_savevm() Mark McLoughlin
2009-04-15 16:29               ` [Qemu-devel] [PATCH 8/9] Use NICInfo::model for eepro100 savevm ID string Mark McLoughlin
2009-04-15 16:29                 ` [Qemu-devel] [PATCH 9/9] Introduce VLANClientState::cleanup() Mark McLoughlin
2009-04-15 17:34                   ` [Qemu-devel] " Jan Kiszka
2009-04-16  1:07                     ` Marcelo Tosatti
2009-04-16  3:24                       ` M. Warner Losh
2009-04-16 14:49                       ` Mark McLoughlin
2009-04-16 14:52                         ` [Qemu-devel] [PATCH 09/09 v2] " Mark McLoughlin
2009-04-16 14:53                           ` [Qemu-devel] [PATCH 10/09] Free VLANClientState using qemu_free() Mark McLoughlin
2009-04-16 20:44                         ` [Qemu-devel] Re: [PATCH 9/9] Introduce VLANClientState::cleanup() Marcelo Tosatti
2009-04-28 12:08                         ` Paul Brook
2009-04-28 16:46                           ` Anthony Liguori
2009-04-28 17:17                             ` Paul Brook
2009-04-28 17:25                               ` Anthony Liguori
2009-04-28 17:46                                 ` Paul Brook
2009-04-28 17:49                                   ` Anthony Liguori
2009-04-28 18:28                                     ` Paul Brook
2009-04-28 21:38                                       ` Anthony Liguori
2009-04-29 10:37                                         ` Paul Brook
2009-04-30 13:45                                           ` Avi Kivity
2009-04-30 16:02                                             ` Paul Brook
2009-04-30 16:20                                               ` Avi Kivity
2009-04-30 16:31                                                 ` Paul Brook
2009-04-30 16:32                                                   ` Avi Kivity
2009-04-30 16:37                                                     ` Anthony Liguori
2009-04-30 16:41                                                       ` Anthony Liguori
2009-04-30 16:58                                                         ` Paul Brook
2009-04-30 17:51                                                           ` Avi Kivity
2009-04-30 16:33                                                   ` Anthony Liguori
2009-04-30 16:32                                               ` Anthony Liguori
2009-04-30 16:57                                                 ` Blue Swirl
2009-04-30 17:11                                                   ` Anthony Liguori
2009-04-30 17:45                                                     ` Jan Kiszka
2009-04-30 17:48                                                       ` Avi Kivity
2009-04-30 18:17                                                         ` Jan Kiszka
2009-04-30 18:19                                                           ` Avi Kivity
2009-04-30 18:22                                                             ` Anthony Liguori
2009-04-30 17:59                                                       ` Anthony Liguori
2009-04-30 18:10                                                         ` Blue Swirl
2009-04-30 18:20                                                           ` Jan Kiszka
2009-04-30 18:32                                                           ` Anthony Liguori
2009-04-30 18:57                                                             ` Blue Swirl
2009-04-30 18:16                                                         ` Jan Kiszka
2009-04-29  7:36                             ` Markus Armbruster
2009-04-16 14:49                     ` Mark McLoughlin
2009-04-15 17:13           ` [Qemu-devel] Re: [PATCH 5/9] Remove some useless malloc() checking Jan Kiszka
2009-04-15 16:55     ` [Qemu-devel] [PATCH 2/9] struct iovec is now universally available Christoph Hellwig
2009-04-15 17:25       ` Mark McLoughlin [this message]
2009-04-15 17:27         ` Christoph Hellwig
2009-04-15 21:18         ` François Revol
2009-04-15 21:52           ` M. Warner Losh
2009-04-15 17:44       ` M. Warner Losh
2009-04-17 18:06   ` [Qemu-devel] [PATCH 1/9] Remove stray GSO code from virtio_net Anthony Liguori

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