Re: [PATCH v2 4/4] proc: avoid ->f_pos overflows inproc_task_readdir() paths

[Al Viro]

On Tue, Jun 04, 2013 at 07:14:35PM +0200, Oleg Nesterov wrote:
> > There is another bug in here as well that we may return really crazy
> > things in the case of seek simultaneous with readdir.
> 
> i_mutex? both vfs_readdir() and default_llseek() take it... Anyway, this
> is another issue.

That's part of the reasons for the series I've mentioned (vfs.git#experimental);
seriously, check that up.
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