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Date:   Tue, 19 Nov 2019 03:03:36 +0000
From:   bugzilla-daemon@...zilla.kernel.org
To:     linux-ext4@...r.kernel.org
Subject: [Bug 205567] potential (possibly benign) data race on
 ext4_dir_entry_2->inode when getdents64 and rename happens on the same
 directory

https://bugzilla.kernel.org/show_bug.cgi?id=205567

--- Comment #7 from Meng Xu (mengxu.gatech@...il.com) ---
(In reply to Theodore Tso from comment #5)
> (Or rather, it's allowed by the standard, so it's no big deal.)

Hi Ted,

Just a quick thought in my mind: do they need to be wrapped with READ_ONCE,
WRITE_ONCE and/or memory barriers so that the visibility of the [WRITE] and all
operations before that [WRITE] are seen by the [READ] and after?

Best Regards,
Meng

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