| To: | Peter Zijlstra <peterz@xxxxxxxxxxxxx> |
|---|---|
| Subject: | Re: [PATCH, RFC] xfs: remove i_iolock and use i_rwsem in the VFS inode instead |
| From: | Christoph Hellwig <hch@xxxxxx> |
| Date: | Fri, 9 Sep 2016 10:34:15 +0200 |
| Cc: | Dave Chinner <david@xxxxxxxxxxxxx>, Christoph Hellwig <hch@xxxxxx>, xfs@xxxxxxxxxxx |
| Delivered-to: | xfs@xxxxxxxxxxx |
| In-reply-to: | <20160909082139.GE10153@xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx> |
| References: | <1470935423-12329-1-git-send-email-hch@xxxxxx> <20160811234335.GX16044@dastard> <20160812025026.GA975@xxxxxx> <20160812095813.GZ16044@dastard> <20160905151529.GB16726@xxxxxx> <20160907214536.GQ30056@dastard> <20160908065442.GV10138@xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx> <20160909010601.GC30056@dastard> <20160909082139.GE10153@xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx> |
| User-agent: | Mutt/1.5.17 (2007-11-01) |
On Fri, Sep 09, 2016 at 10:21:39AM +0200, Peter Zijlstra wrote: > Does the worker have a pointer back to taskA ? I could try something > like lockdep_assert_held_by(lock, task), just need to be careful, > the per-task lock state is just that, per-task, no serialization. Currently it doesn't, but we could add one. It would be rather hacky, though. |
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