• Ian Kent's avatar
    autofs: add ignore mount option · 60d6d04c
    Ian Kent authored
    Add an autofs file system mount option that can be used to provide a
    generic indicator to applications that the mount entry should be ignored
    when displaying mount information.
    
    In other OSes that provide autofs and that provide a mount list to user
    space based on the kernel mount list a no-op mount option ("ignore" is
    the one use on the most common OS) is allowed so that autofs file system
    users can optionally use it.
    
    The idea is that it be used by user space programs to exclude autofs
    mounts from consideration when reading the mounts list.
    
    Prior to the change to link /etc/mtab to /proc/self/mounts all I needed
    to do to achieve this was to use mount(2) and not update the mtab but
    now that no longer works.
    
    I know the symlinking happened a long time ago and I considered doing
    this then but, at the time I couldn't remember the commonly used option
    name and thought persuading the various utility maintainers would be too
    hard.
    
    But now I have a RHEL request to do this for compatibility for a widely
    used product so I want to go ahead with it and try and enlist the help
    of some utility package maintainers.
    
    Clearly, without the option nothing can be done so it's at least a
    start.
    
    Link: http://lkml.kernel.org/r/154725123970.11260.6113771566924907275.stgit@pluto-themaw-netSigned-off-by: default avatarIan Kent <raven@themaw.net>
    Signed-off-by: default avatarAndrew Morton <akpm@linux-foundation.org>
    Signed-off-by: default avatarLinus Torvalds <torvalds@linux-foundation.org>
    60d6d04c
inode.c 8.81 KB