From: Xiubo Li <xiubli@redhat.com>
To: Sebastian Hasler <sebastian.hasler@sec.uni-stuttgart.de>
Cc: ceph-devel@vger.kernel.org
Subject: Re: [PATCH] ceph: fail the open_by_handle_at() if the dentry is being unlinked
Date: Tue, 12 Sep 2023 20:51:50 +0800 [thread overview]
Message-ID: <27e9617d-ef66-8110-f082-04ad29805a16@redhat.com> (raw)
In-Reply-To: <a9b51955-0f27-d802-4716-988af03a25e9@sec.uni-stuttgart.de>
On 9/11/23 18:07, Sebastian Hasler wrote:
> On 11/09/2023 05:21, Xiubo Li wrote:
>
>> "This will generally not work if the file has a link count of
>> zero (files created with O_TMPFILE and without O_EXCL are an
>> exception)."
> In this sentence, "generally" probably means "typically", so it
> depends on the specific file system's behavior. I don't know the
> CephFS behavior in this case. However, at least files created with
> O_TMPFILE are an exception. Does CephFS support creating files with
> O_TMPFILE? Such files can (and often will) go from the unlinked and
> open state to the linked and closed state.
>
Hmm, yeah. I didn't see anywhere is disallowing to create with
O_TMPFILE. Let me have a look at this case carefully later.
Thanks very much for your reporting Sebastian.
- Xiubo
prev parent reply other threads:[~2023-09-12 12:52 UTC|newest]
Thread overview: 8+ messages / expand[flat|nested] mbox.gz Atom feed top
2022-08-04 8:06 [PATCH] ceph: fail the open_by_handle_at() if the dentry is being unlinked xiubli
2022-08-04 16:25 ` Jeff Layton
2023-09-06 16:58 ` Sebastian Hasler
2023-09-07 2:05 ` Xiubo Li
2023-09-07 11:57 ` Sebastian Hasler
2023-09-11 3:21 ` Xiubo Li
2023-09-11 10:07 ` Sebastian Hasler
2023-09-12 12:51 ` Xiubo Li [this message]
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