Re: [RFC][PATCH v2] mount: In mark_umount_candidates and __propogate_umount visit each mount once

2016-10-18 Thread Andrei Vagin
On Fri, Oct 14, 2016 at 01:29:18PM -0500, Eric W. Biederman wrote: > > Adrei Vagin pointed out that time to executue propagate_umount can go > non-linear (and take a ludicrious amount of time) when the mount > propogation trees of the mounts to be unmunted by a lazy unmount > overlap. > > Solve t

Re: [RFC][PATCH v2] mount: In mark_umount_candidates and __propogate_umount visit each mount once

2016-10-17 Thread Eric W. Biederman
Andrei Vagin writes: > On Fri, Oct 14, 2016 at 01:29:18PM -0500, Eric W. Biederman wrote: >> >> Adrei Vagin pointed out that time to executue propagate_umount can go >> non-linear (and take a ludicrious amount of time) when the mount >> propogation trees of the mounts to be unmunted by a lazy un