Messages in this thread | | | From | "Magnus Naeslund(f)" <> | Subject | Re: Maximum mountpoints + chrooted login | Date | Wed, 27 Jun 2001 13:56:50 +0200 |
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From: "Alexander Viro" <viro@math.psu.edu> > [snip] > > I didn't go for proper solution in 2.4.0-test*). However, instead of > crufting up kinda-sorta namespaces one could use the real thing. Relevant > cleanups of superblock handling will go in in 2.5.very_early and the > rest of patch (namespace proper) takes about 10Kb. >
I'll wait for 2.5 then... Where's that namespace patch located?
> You can simply say clone(CLONE_NAMESPACE,NULL) and you get an independent > set of mounts to play with. mount/umount whatever you want before dropping > the root priveleges. All children of that process will share its namespace. > When the last one goes away everything will be garbage-collected - no > need to umount anything on logout. >
Lovely!
> > With the mntcache in - not really. It fixes the main performance problem.
Now in 2.4.5 it's darn slow to _unmount_, it's like 100 times faster to mount than unmount :)
Cheers
Magnus Naeslund
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