From: Arnaldo Carvalho de Melo <acme@redhat.com>
To: Jesse Barnes <jbarnes@virtuousgeek.org>
Cc: Matthew Wilcox <matthew@wil.cx>,
linux-kernel@vger.kernel.org, linux-pci@vger.kernel.org,
linux-rt-users@vger.kernel.org,
Steven Rostedt <rostedt@goodmis.org>
Subject: Re: [PATCH][PCI]: Introduce pci_find_capability_cached and make MSI use it
Date: Fri, 16 May 2008 16:10:15 -0300 [thread overview]
Message-ID: <20080516191015.GB8111@ghostprotocols.net> (raw)
In-Reply-To: <200805161201.48644.jbarnes@virtuousgeek.org>
Em Fri, May 16, 2008 at 12:01:48PM -0700, Jesse Barnes escreveu:
> On Friday, May 16, 2008 11:33 am Arnaldo Carvalho de Melo wrote:
> > > There are a few other common cap checks, but I don't think they compare
> > > to MSI in terms of latency sensitivity (though I didn't audit all the
> > > CAP_ID_EXP checks, there are quite a few of those).
> > >
> > > Since we know MSI is a problem, let's just go with fixing that for now.
> > > If we find that other caps are also causing problems we can revisit
> > > caching all of them; the patch is simple enough.
> >
> > Do you want me to submit another patch or can you cook up one?
>
> I can hack it up, probably not until Monday though (I'll be out of town this
> weekend).
OK, for now this patch should be in the next rt patchset, we'll drop it
when you get The Right Thing merged 8)
- Arnaldo
next prev parent reply other threads:[~2008-05-16 19:10 UTC|newest]
Thread overview: 13+ messages / expand[flat|nested] mbox.gz Atom feed top
2008-05-15 16:04 [PATCH][PCI]: Introduce pci_find_capability_cached and make MSI use it Arnaldo Carvalho de Melo
2008-05-15 17:02 ` Arnaldo Carvalho de Melo
2008-05-15 17:04 ` Matthew Wilcox
2008-05-15 17:10 ` Arnaldo Carvalho de Melo
2008-05-16 17:44 ` Jesse Barnes
2008-05-16 18:33 ` Arnaldo Carvalho de Melo
2008-05-16 19:01 ` Jesse Barnes
2008-05-16 19:10 ` Arnaldo Carvalho de Melo [this message]
2008-05-19 4:48 ` [PATCH] msi: skip calling pci_find_capability from msi_set_mask_bits Hidetoshi Seto
2008-05-19 20:11 ` Jesse Barnes
2008-05-19 20:26 ` Arnaldo Carvalho de Melo
2008-05-20 19:56 ` Arnaldo Carvalho de Melo
2008-05-20 20:06 ` Jesse Barnes
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=20080516191015.GB8111@ghostprotocols.net \
--to=acme@redhat.com \
--cc=jbarnes@virtuousgeek.org \
--cc=linux-kernel@vger.kernel.org \
--cc=linux-pci@vger.kernel.org \
--cc=linux-rt-users@vger.kernel.org \
--cc=matthew@wil.cx \
--cc=rostedt@goodmis.org \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is an external index of several public inboxes,
see mirroring instructions on how to clone and mirror
all data and code used by this external index.