Messages in this thread | | | From | Neil Brown <> | Date | Thu, 17 Jan 2008 11:33:09 +1100 | Subject | Re: [patch] VFS: extend /proc/mounts |
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On Thursday January 17, jengelh@computergmbh.de wrote: > > On Jan 17 2008 00:43, Karel Zak wrote: > >> > >> Seems like a plain bad idea to me. There will be any number of home-made > >> /proc/mounts parsers and we don't know what they do. > > > > So, let's use /proc/mounts_v2 ;-) > > Was not it like "don't use /proc for new things"?
I thought it was "don't use /proc for new things that aren't process related".
And as the mount table is per process......
A host has a bunch of mounted filesystems (struct super_block), and each process has some subset of these stitched together into a mount tree (struct vfsmount / struct namespace).
There needs to be something in /proc that exposes the vfsmount tree.
Arguably there should be something else - maybe in sysfs - that provides access to the "struct superblock" object.
And there needs to be a clear way to relate information from one with information from the other.
In the tradition of stat, statm, status, maybe the former should be /proc/$PID/mountm :-)
Hey, I just found /proc/X/mountstats. How does this fit in to the big picture?
NeilBrown
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