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Groups > linux.kernel > #1344951
| From | Christoph Hellwig <hch@infradead.org> |
|---|---|
| Newsgroups | linux.kernel |
| Subject | Re: [RFC V2 PATCH] kernfs: create raw version kernfs_path_len and kernfs_path |
| Date | 2016-02-27 10:00 +0100 |
| Message-ID | <r6ITg-la-7@gated-at.bofh.it> (permalink) |
| References | <r6yTU-1pV-11@gated-at.bofh.it> |
| Organization | linux.* mail to news gateway |
On Fri, Feb 26, 2016 at 01:47:39PM -0800, Yang Shi wrote:
> commit 5634cc2aa9aebc77bc862992e7805469dcf83dac ("writeback: update writeback
> tracepoints to report cgroup") made writeback tracepoints report cgroup
> writeback, but it may trigger the below bug on -rt kernel since kernfs_path
> and kernfs_path_len are called by tracepoints, which acquire sleeping lock.
Sounds like the tracepoints simplify shouldn't try to do this path
generation at all..
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[RFC V2 PATCH] kernfs: create raw version kernfs_path_len and kernfs_path Yang Shi <yang.shi@linaro.org> - 2016-02-26 23:20 +0100
Re: [RFC V2 PATCH] kernfs: create raw version kernfs_path_len and kernfs_path "Shi, Yang" <yang.shi@linaro.org> - 2016-02-27 00:10 +0100
Re: [RFC V2 PATCH] kernfs: create raw version kernfs_path_len and kernfs_path Greg KH <gregkh@linuxfoundation.org> - 2016-02-27 00:30 +0100
Re: [RFC V2 PATCH] kernfs: create raw version kernfs_path_len and kernfs_path Christoph Hellwig <hch@infradead.org> - 2016-02-27 10:00 +0100
Re: [RFC V2 PATCH] kernfs: create raw version kernfs_path_len and kernfs_path Tejun Heo <tj@kernel.org> - 2016-02-27 12:20 +0100
Re: [RFC V2 PATCH] kernfs: create raw version kernfs_path_len and kernfs_path Thomas Gleixner <tglx@linutronix.de> - 2016-02-27 12:40 +0100
Re: [RFC V2 PATCH] kernfs: create raw version kernfs_path_len and kernfs_path Thomas Gleixner <tglx@linutronix.de> - 2016-02-27 12:50 +0100
Re: [RFC V2 PATCH] kernfs: create raw version kernfs_path_len and kernfs_path Tejun Heo <tj@kernel.org> - 2016-02-27 13:00 +0100
Re: [RFC V2 PATCH] kernfs: create raw version kernfs_path_len and kernfs_path "Shi, Yang" <yang.shi@linaro.org> - 2016-02-29 19:10 +0100
Re: [RFC V2 PATCH] kernfs: create raw version kernfs_path_len and kernfs_path Tejun Heo <tj@kernel.org> - 2016-02-27 12:50 +0100
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