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SubjectRe: [Patch] VFS : mount lock scalability for files systems without mount point (WAS vfsmount lock issues on very large ppc64 box)
On Mon, Jul 25, 2011 at 03:39:10PM -0700, Tim Chen wrote:
> On Sat, 2011-07-23 at 09:24 -0400, Christoph Hellwig wrote:
> > I think you actually want this done in kern_mount_data, as both
> > ipc and proc want long-term references as well. I also suspect with
> > additional creep of container awareness more internal mounts will switch
> > to kern_mount_data. Al, what do you think about simply passing the
> > private data argument to kern_mount and kill kern_mount_data? It's not
> > like the additional argument is going to cause us any pain.
> >
> >
>
> I've updated the patch and merged mnt_make_longterm into
> kern_mount_data to address your comments. I've left the kern_mount
> and kern_mount_data as separate functions for now. Let me know
> if removing kern_mount_data is preferable instead.

It's mostly merged in mainline already... BTW, you forgot to export
that sucker - mtdchar can be modular.


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