linux-kernel - Re: [PATCH 1/2] sysfs: fix race between readdir and lseek

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Message-ID: <CACVXFVPLkaoowZJZdrg3nkm7ymismJ6W=_BzgyroKJOxJYPODA@mail.gmail.com>
Date:	Tue, 26 Mar 2013 16:45:29 +0800
From:	Ming Lei <ming.lei@...onical.com>
To:	Li Zefan <lizefan@...wei.com>
Cc:	Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
	linux-kernel@...r.kernel.org, stable@...r.kernel.org
Subject: Re: [PATCH 1/2] sysfs: fix race between readdir and lseek

On Tue, Mar 26, 2013 at 3:30 PM, Li Zefan <lizefan@...wei.com> wrote:
>> Considered that vfs_read()/vfs_write on sysfs dir is almost doing nothing, the
>> above problem may only exist in theory.
>
> The read() vs readdir() race in sysfs directory doesn't exist in theory only.

Could you let me know if you have applied the two patches on your test?

https://git.kernel.org/cgit/linux/kernel/git/next/linux-next.git/commit/?id=e5110f411d2ee35bf8d202ccca2e89c633060dca

https://git.kernel.org/cgit/linux/kernel/git/next/linux-next.git/commit/?id=991f76f837bf22c5bb07261cfd86525a0a96650c

Also I appreciate it if you may share your test case...

Thanks,
--
Ming Lei
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