From: Sean Christopherson <seanjc@google.com>
To: Oliver Upton <oliver.upton@linux.dev>
Cc: Marc Zyngier <maz@kernel.org>,
linux-arm-kernel@lists.infradead.org, kvmarm@lists.linux.dev,
linux-kernel@vger.kernel.org, Michal Luczaj <mhal@rbox.co>
Subject: Re: [PATCH 2/4] KVM: selftests: Add helper macros for ioctl()s that return file descriptors
Date: Fri, 4 Aug 2023 10:27:07 -0700 [thread overview]
Message-ID: <ZM006zd4bpsGBtWF@google.com> (raw)
In-Reply-To: <ZM0rXgKvb912k5BE@linux.dev>
On Fri, Aug 04, 2023, Oliver Upton wrote:
> Hi Sean,
>
> On Thu, Aug 03, 2023 at 05:42:24PM -0700, Sean Christopherson wrote:
> > Add KVM, VM, and vCPU scoped helpers for ioctl()s that return file
> > descriptors, i.e. deduplicate code for asserting success on ioctls() for
> > which a positive return value, not just zero, is considered success.
> >
> > Signed-off-by: Sean Christopherson <seanjc@google.com>
>
> I appreciate the desire to eliminate duplicate code, but I think the
> naming just muddies the waters. TBH, when I first read the diff w/o the
> changelog, I thought you were describing the input fd (i.e. 'kvm_fd',
> 'vm_fd', 'vcpu_fd'). I don't think explicitly spelling out the condition
> each time (i.e. ret >= 0) is all that difficult.
Yeah, but it's not just a desire to dedup code, I also am trying to funnel as
many "ioctl() succeeded" asserts as possible into common code so that they naturally
benefit from things like patch 4 (detecting dead/bugged VMs).
I agree the naming sucks.
_______________________________________________
linux-arm-kernel mailing list
linux-arm-kernel@lists.infradead.org
http://lists.infradead.org/mailman/listinfo/linux-arm-kernel
next prev parent reply other threads:[~2023-08-04 17:27 UTC|newest]
Thread overview: 13+ messages / expand[flat|nested] mbox.gz Atom feed top
2023-08-04 0:42 [PATCH 0/4] KVM: selftests: ioctl() macro cleanups Sean Christopherson
2023-08-04 0:42 ` [PATCH 1/4] KVM: selftests: Drop the single-underscore ioctl() helpers Sean Christopherson
2023-08-04 0:42 ` [PATCH 2/4] KVM: selftests: Add helper macros for ioctl()s that return file descriptors Sean Christopherson
2023-08-04 16:46 ` Oliver Upton
2023-08-04 17:27 ` Sean Christopherson [this message]
2023-08-14 18:11 ` Sean Christopherson
2023-08-04 17:57 ` Colton Lewis
2023-08-04 18:33 ` Sean Christopherson
2023-08-04 0:42 ` [PATCH 3/4] KVM: selftests: Use asserting kvm_ioctl() macros when getting ARM page sizes Sean Christopherson
2023-08-04 14:58 ` Michal Luczaj
2023-08-04 15:23 ` Sean Christopherson
2023-08-04 0:42 ` [PATCH 4/4] KVM: selftests: Add logic to detect if ioctl() failed because VM was killed Sean Christopherson
2023-08-04 15:24 ` [PATCH 0/4] KVM: selftests: ioctl() macro cleanups Sean Christopherson
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=ZM006zd4bpsGBtWF@google.com \
--to=seanjc@google.com \
--cc=kvmarm@lists.linux.dev \
--cc=linux-arm-kernel@lists.infradead.org \
--cc=linux-kernel@vger.kernel.org \
--cc=maz@kernel.org \
--cc=mhal@rbox.co \
--cc=oliver.upton@linux.dev \
/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 a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for NNTP newsgroup(s).