Re: [RFC PATCH] mountinfo: show only reachable mounts

[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]

 



> On Tue, 2008-03-11 at 17:17 +0100, Miklos Szeredi wrote:
> > [One more RFC for mountinfo, and then I'll really send them to
> > Andrew.]
> > 
> > Two changes:
> > 
> > 1. Only show reachable mounts in /proc/<pid>/mountinfo, this makes
> > mountpoints unambiguous for chrooted processes.
> > 
> > 2. Instead of showing mountpoints relative to the current root, always
> > show them relative to the queried task's root.
> > 
> > This means, that a particular mountinfo file will always have the same
> > contents, regardless of which process is reading the file.  Which is a
> > lot more consistent, than the current behavior of /proc/<pid>/mounts.
> 
> 
> What about the propagation aspect?  Won't you have to show only those
> master mount pgid's that have a mounts within the same chrooted tree?

You mean, the dominating mount's pgid?  Yes, it would make sense to
show only the one which is under the same root.  I'm a bit sceptical
about the worth of this dominating mount pgid thing, but Al thinks
it's a good idea, so...

About the immediate master's pgid, I think we decided, that it's not a
problem to show it, even if there's no representative mount of it
under the current namespace (or root).

Miklos
--
To unsubscribe from this list: send the line "unsubscribe linux-fsdevel" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at  http://vger.kernel.org/majordomo-info.html

[Index of Archives]     [Linux Ext4 Filesystem]     [Union Filesystem]     [Filesystem Testing]     [Ceph Users]     [Ecryptfs]     [AutoFS]     [Kernel Newbies]     [Share Photos]     [Security]     [Netfilter]     [Bugtraq]     [Yosemite News]     [MIPS Linux]     [ARM Linux]     [Linux Security]     [Linux Cachefs]     [Reiser Filesystem]     [Linux RAID]     [Samba]     [Device Mapper]     [CEPH Development]
  Powered by Linux