From: Christoph Hellwig <hch@lst.de>
To: Stefan Hajnoczi <stefanha@gmail.com>
Cc: Kevin Wolf <kwolf@redhat.com>,
Supriya Kannery <supriyak@linux.vnet.ibm.com>,
qemu-devel@nongnu.org, Luiz Capitulino <lcapitulino@redhat.com>,
supriya kannery <supriyak@in.ibm.com>,
Christoph Hellwig <hch@lst.de>
Subject: Re: [Qemu-devel] [v9 Patch 6/6]Qemu: raw posix implementation of reopen functions
Date: Tue, 22 Nov 2011 12:36:59 +0100 [thread overview]
Message-ID: <20111122113659.GA32371@lst.de> (raw)
In-Reply-To: <CAJSP0QVMUbWdss25=HV-8qBtgDuc8drUJckxgpVWzJiHju6-mA@mail.gmail.com>
On Tue, Nov 22, 2011 at 11:32:42AM +0000, Stefan Hajnoczi wrote:
> Are you sure POSIX guarantees that O_DIRECT can be changed with
> F_SETFL? I didn't find any statement in the specification. It is
> possible that this code compiles but does not actually work on
> non-Linux OSes. Did you run tests?
O_DIRECT is a non-posix extention, and semantics of it will differ
greatly between the operating systems implementing it.
next prev parent reply other threads:[~2011-11-22 11:37 UTC|newest]
Thread overview: 44+ messages / expand[flat|nested] mbox.gz Atom feed top
2011-11-11 6:47 [Qemu-devel] [v9 Patch 0/6]Qemu: Host pagecache setting from cmdline and monitor Supriya Kannery
2011-11-11 6:47 ` [Qemu-devel] [v9 Patch 1/6]Qemu: Enhance "info block" to display host cache setting Supriya Kannery
2011-11-11 10:09 ` [Qemu-devel] [v9 Patch 1/6 - updated]Qemu: " Supriya Kannery
2011-11-17 12:38 ` Luiz Capitulino
2011-11-18 9:14 ` supriya kannery
2011-11-11 6:47 ` [Qemu-devel] [v9 Patch 2/6]Qemu: Error classes for file reopen and data sync failure Supriya Kannery
2011-11-17 12:50 ` Luiz Capitulino
2011-11-18 9:29 ` supriya kannery
2011-11-18 12:09 ` Luiz Capitulino
2011-11-11 6:47 ` [Qemu-devel] [v9 Patch 3/6]Qemu: Cmd "block_set_hostcache" for dynamic cache change Supriya Kannery
2011-11-16 18:34 ` Stefan Hajnoczi
2011-11-17 5:45 ` Supriya Kannery
2011-11-17 13:14 ` Luiz Capitulino
2011-11-17 13:11 ` Luiz Capitulino
2011-11-18 10:44 ` supriya kannery
2011-11-11 6:48 ` [Qemu-devel] [v9 Patch 4/6]Qemu: Add commandline -drive option 'hostcache' Supriya Kannery
2011-11-16 20:06 ` Stefan Hajnoczi
2011-11-17 5:18 ` Supriya Kannery
2011-11-17 14:11 ` Stefan Hajnoczi
2011-11-21 12:28 ` supriya kannery
2011-11-21 14:03 ` Stefan Hajnoczi
2011-11-22 8:10 ` supriya kannery
2011-11-22 9:55 ` Kevin Wolf
2011-11-22 11:17 ` Stefan Hajnoczi
2011-11-22 11:31 ` Kevin Wolf
2011-11-11 6:48 ` [Qemu-devel] [v9 Patch 5/6]Qemu: Framework for reopening images safely Supriya Kannery
2011-11-17 13:16 ` Luiz Capitulino
2011-11-17 14:36 ` Stefan Hajnoczi
2011-11-21 12:13 ` supriya kannery
2011-11-21 14:31 ` Stefan Hajnoczi
2011-11-22 10:24 ` supriya kannery
2011-11-22 11:04 ` Kevin Wolf
2011-11-22 11:16 ` supriya kannery
2011-11-22 11:49 ` Stefan Hajnoczi
2011-11-23 3:52 ` Supriya Kannery
2011-11-11 6:48 ` [Qemu-devel] [v9 Patch 6/6]Qemu: raw posix implementation of reopen functions Supriya Kannery
2011-11-17 14:41 ` Stefan Hajnoczi
2011-11-21 12:30 ` supriya kannery
2011-11-22 9:45 ` supriya kannery
2011-11-22 11:32 ` Stefan Hajnoczi
2011-11-22 11:30 ` supriya kannery
2011-11-22 11:54 ` Stefan Hajnoczi
2011-11-22 11:36 ` Christoph Hellwig [this message]
2012-01-19 16:24 ` [Qemu-devel] [v9 Patch 0/6]Qemu: Host pagecache setting from cmdline and monitor Kevin Wolf
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