From: Jarkko Sakkinen <jarkko.sakkinen@linux.intel.com>
To: Waiman Long <longman@redhat.com>
Cc: David Howells <dhowells@redhat.com>,
James Morris <jmorris@namei.org>,
"Serge E. Hallyn" <serge@hallyn.com>,
Mimi Zohar <zohar@linux.ibm.com>,
"David S. Miller" <davem@davemloft.net>,
Jakub Kicinski <kuba@kernel.org>,
keyrings@vger.kernel.org, linux-kernel@vger.kernel.org,
linux-security-module@vger.kernel.org,
linux-integrity@vger.kernel.org, netdev@vger.kernel.org,
linux-afs@lists.infradead.org, Sumit Garg <sumit.garg@linaro.org>,
Jerry Snitselaar <jsnitsel@redhat.com>,
Roberto Sassu <roberto.sassu@huawei.com>,
Eric Biggers <ebiggers@google.com>,
Chris von Recklinghausen <crecklin@redhat.com>
Subject: Re: [PATCH v6 2/2] KEYS: Avoid false positive ENOMEM error on key read
Date: Sat, 21 Mar 2020 00:21:13 +0200 [thread overview]
Message-ID: <20200320222113.GB5284@linux.intel.com> (raw)
In-Reply-To: <20200320221918.GA5284@linux.intel.com>
On Sat, Mar 21, 2020 at 12:19:27AM +0200, Jarkko Sakkinen wrote:
> Would move this label before condition instead of jumping inside the
> nested block since it will always evaluate correctly.
>
> To this version haven't really gotten why you don't use a legit loop
> construct but instead jump from one random nested location to another
> random nested location? This construct will be somewhat nasty to
> maintain. The construct is weird enough that you should have rather
> good explanation in the long description why such a mess.
What I'm saying that if I fix a bug, the first version of the fix
would probably look something like this is right now. They I think
how to write it right. We don't want fixes that just happen to work.
Right now I'm worried to take this in since I'm not confident that
I haven't some possible corner case, or might still have gotten
something just plain wrong.
/Jarkko
next prev parent reply other threads:[~2020-03-20 22:21 UTC|newest]
Thread overview: 6+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-03-20 19:19 [PATCH v6 0/2] KEYS: Read keys to internal buffer & then copy to userspace Waiman Long
2020-03-20 19:19 ` [PATCH v6 1/2] KEYS: Don't write out to userspace while holding key semaphore Waiman Long
2020-03-20 19:19 ` [PATCH v6 2/2] KEYS: Avoid false positive ENOMEM error on key read Waiman Long
2020-03-20 22:19 ` Jarkko Sakkinen
2020-03-20 22:21 ` Jarkko Sakkinen [this message]
2020-03-21 1:51 ` Waiman Long
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