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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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