Messages in this thread | | | Date | Mon, 6 Nov 2017 13:33:04 +0000 | From | Al Viro <> | Subject | Re: possible deadlock in generic_file_write_iter |
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On Mon, Nov 06, 2017 at 02:15:44PM +0100, Jan Kara wrote:
> > Should we annotate these inodes with different lock types? Or use > > nesting annotations? > > Well, you'd need to have a completely separate set of locking classes for > each filesystem to avoid false positives like these. And that would > increase number of classes lockdep has to handle significantly. So I'm not > sure it's really worth it...
Especially when you consider that backing file might be on a filesystem that lives on another loop device. *All* per-{device,fs} locks involved would need classes split that way...
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