Re: [PATCH 1/5] io: Add support for MSG_PEEK for socket channel

[Daniel P . Berrangé]

On Wed, Dec 14, 2022 at 04:30:48PM -0500, Peter Xu wrote:
> On Wed, Dec 14, 2022 at 09:14:09AM +0000, Daniel P. Berrangé wrote:
> > On Tue, Dec 13, 2022 at 04:38:46PM -0500, Peter Xu wrote:
> > > From: "manish.mishra" <manish.mishra@nutanix.com>
> > > 
> > > MSG_PEEK reads from the peek of channel, The data is treated as
> > > unread and the next read shall still return this data. This
> > > support is currently added only for socket class. Extra parameter
> > > 'flags' is added to io_readv calls to pass extra read flags like
> > > MSG_PEEK.
> > > 
> > > Reviewed-by: Daniel P. Berrang?? <berrange@redhat.co
> > > Suggested-by: Daniel P. Berrang?? <berrange@redhat.com
> > 
> > The last letter of my name has been mangled - whatever tools used
> > to pull in manish's patches seem to not be UTF-8 clean.
> > 
> > Also the email addr isn't terminated, but that was pre-existing
> > in manish's previous posting.
> 
> I'll fix at least the latter in my next post, sorry.
> 
> For the 1st one - I am still looking at what went wrong.
> 
> Here from the web interfaces it all looks good (besides the wrong
> ending..), e.g. on lore or patchew:
> 
> 20221213213850.1481858-2-peterx@redhat.com/">https://lore.kernel.org/all/20221213213850.1481858-2-peterx@redhat.com/
> 20221213213850.1481858-1-peterx@redhat.com/20221213213850.1481858-2-peterx@redhat.com/">https://patchew.org/QEMU/20221213213850.1481858-1-peterx@redhat.com/20221213213850.1481858-2-peterx@redhat.com/
> 
> It also looks good with e.g. Gmail webclient.
> 
> Then I digged into the email headers and I found that comparing to Manish's
> original message, the patches I posted has one more line of "Content-type":
> 
>   Content-Type: text/plain; charset="utf-8"
>   Content-type: text/plain
>   20221213213850.1481858-2-peterx@redhat.com/mbox">https://patchew.org/QEMU/20221213213850.1481858-2-peterx@redhat.com/mbox
> 
> While Manish's patch only has one line:
> 
>   Content-Type: text/plain; charset="utf-8"
>   
> https://patchew.org/QEMU/20221123172735.25181-2-manish.mishra@nutanix.com/mbox

Don't trust what is shown by patchew, as that's been through many
hops.

The copy I receieved came directly to me via CC, so didn't hit mailman,
nor patchew, and that *only* has  "Content-type: text/plain".  So the
extra Content-type line with utf8 must have been added either by
mailman or patchew.

So it probably looks like a config problem in the tool you use to send
the patches originally.

With regards,
Daniel
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