Messages in this thread | | | Date | Mon, 2 May 2016 12:33:32 -0400 | From | Tejun Heo <> | Subject | Re: [PATCH 2/2] mountinfo: implement show_path for kernfs and cgroup |
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On Tue, Apr 26, 2016 at 09:36:23AM -0500, Serge E. Hallyn wrote: > > In the ideal world there is no mountinfo file, but /proc/self/mountinfo/<id>/ > > directory with individual files, so every subsystem and filesystem has > > absolute freedom to store there all relevant information. The result will > > be also lucky kernel that does not have to always generate entire huge > > mountinfo file for all mountpoins... etc. :-) > > Yeah mountinfo does seem like a big stick to swing around every time I want > one little piece of information. Also mght be good to have per-fstype > directories so we can just look under /proc/self/mountsdir/cgroupfs/ for > only cgroupfs <id>s. > > There we might also find open fds for source and mountdir, kinda fitting > in with previous discussions of separating bdev_open() and mountat(). > > BTW, assuming this would in fact report source and mountpoint location > with fds, these would really (through realpath) be reported relative to > the reader's namespace, as I'm doing and advocating here.
So, what's the consensus here? Is everyone okay with the posted patches?
Thanks.
-- tejun
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