Re: 2.6.17-rc3 - fs/namespace.c issue

[Andrew Morton]

Valdis.Kletnieks@xxxxxx wrote:
>
> There seems to have been a bug introduced in this changeset:
> 
> http://www.kernel.org/git/?p=linux/kernel/git/torvalds/linux-2.6.git;a=commit;h=f6422f17d3a480f21917a3895e2a46b968f56a08
> 
> Am running 2.6.17-rc3-mm1.  When this changeset is applied, 'mount --bind'
> misbehaves:
> 
> > # mkdir /foo
> > # mount -t tmpfs -o rw,nosuid,nodev,noexec,noatime,nodiratime none /foo
> > # mkdir /foo/bar
> > # mount --bind /foo/bar /foo
> > # tail -2 /proc/mounts
> > none /foo tmpfs rw,nosuid,nodev,noexec,noatime,nodiratime 0 0
> > none /foo tmpfs rw 0 0
> 
> Reverting this changeset causes both mounts to have the same options.
> 
> (Thanks to Stephen Smalley for tracking down the changeset...)
> 

(cc's added)
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