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how to show propagation state for mounts

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To: <linux-fsdevel@...>
Cc: <viro@...>, <linuxram@...>
Date: Wednesday, February 20, 2008 - 11:39 am

> mountinfo - IMO needs a sane discussion of what and how should be shown

Here's my take on the matter.

The propagation tree can be either be represented

 1) "from root to leaf" listing members of peer groups and their
 slaves explicitly,

 2) or "from leaf to root" by identifying each peer group and then for
 each mount showing the id of its own group and the id of the group's
 master.

2) can have two variants:

 2a) id of peer group is constant in time

 2b) id of peer group may change

The current patch does 2b).  Having a fixed id for each peer group
would mean introducing a new object to anchor the peer group into,
which would add complexity to the whole thing.

All of these are implementable, just need to decide which one we want.

Miklos
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Messages in current thread:
how to show propagation state for mounts, Miklos Szeredi, (Wed Feb 20, 11:39 am)
Re: how to show propagation state for mounts, Al Viro, (Wed Feb 20, 12:04 pm)
Re: how to show propagation state for mounts, Matthew Wilcox, (Wed Feb 20, 12:31 pm)
Re: how to show propagation state for mounts, Ram Pai, (Wed Feb 20, 3:42 pm)
Re: how to show propagation state for mounts, Miklos Szeredi, (Wed Feb 20, 12:27 pm)
Re: how to show propagation state for mounts, Ram Pai, (Wed Feb 20, 3:29 pm)
Re: how to show propagation state for mounts, Al Viro, (Wed Feb 20, 5:14 pm)
Re: how to show propagation state for mounts, Miklos Szeredi, (Wed Feb 20, 5:35 pm)
[rfc patch] how to show propagation state for mounts, Miklos Szeredi, (Fri Feb 22, 10:46 am)
Re: [RFC PATCH v2] vfs: optimization to /proc/&lt;pid&gt;/mo..., Christoph Hellwig, (Mon Mar 10, 3:10 am)
Re: [rfc patch] how to show propagation state for mounts, Serge E. Hallyn, (Wed Mar 5, 3:25 pm)
Re: [rfc patch] how to show propagation state for mounts, Miklos Szeredi, (Wed Mar 5, 3:34 pm)
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