From: "Burakov, Anatoly" <anatoly.burakov@intel.com>
To: Jake Freeland <jfree@FreeBSD.org>,
Chenbo Xia <chenbox@nvidia.com>,
"Nipun Gupta" <nipun.gupta@amd.com>,
Tyler Retzlaff <roretzla@linux.microsoft.com>,
Bruce Richardson <bruce.richardson@intel.com>
Cc: <dev@dpdk.org>
Subject: Re: [PATCH 4/4] bus/pci/bsd: Fix device existence check
Date: Thu, 8 May 2025 13:27:57 +0200 [thread overview]
Message-ID: <be4ff15c-46d5-4cc8-92d7-cdbf4940b90d@intel.com> (raw)
In-Reply-To: <20250506174046.1136711-5-jfree@FreeBSD.org>
On 5/6/2025 7:40 PM, Jake Freeland wrote:
> Use open(2) instead of access(2) to check for the existence of the target
> device. This avoids a possible race condition where the the device file is
> removed after a successful call to access(2) but before open(2).
>
> This also fixes any potential bugs associated with passing open(2)-style
> flags into access(2). i.e. access(2) does not formally support the O_RDWR
> flag.
>
> Signed-off-by: Jake Freeland <jfree@FreeBSD.org>
> ---
It's odd that static analysis didn't flag this, as that's the kind of
thing it would normally complain about.
Acked-by: Anatoly Burakov <anatoly.burakov@intel.com>
--
Thanks,
Anatoly
prev parent reply other threads:[~2025-05-08 11:29 UTC|newest]
Thread overview: 9+ messages / expand[flat|nested] mbox.gz Atom feed top
2025-05-06 17:40 [PATCH 0/4] BSD PCI Fixes Jake Freeland
2025-05-06 17:40 ` [PATCH 1/4] bus/pci: Use force-noreplace flag when mapping PCI resources Jake Freeland
2025-05-08 11:32 ` Burakov, Anatoly
2025-05-06 17:40 ` [PATCH 2/4] bus/pci/bsd: Map resources at EAL baseaddr Jake Freeland
2025-05-08 11:31 ` Burakov, Anatoly
2025-05-06 17:40 ` [PATCH 3/4] bus/pci/bsd: Eliminate potential overflow Jake Freeland
2025-05-08 11:28 ` Burakov, Anatoly
2025-05-06 17:40 ` [PATCH 4/4] bus/pci/bsd: Fix device existence check Jake Freeland
2025-05-08 11:27 ` Burakov, Anatoly [this message]
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