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    SubjectRe: Since sysfs_mount is static and used only in sysfs_init function, it could be just an automatic variable.
    On Sun, Dec 02, 2007 at 04:31:09AM +0800, rae l wrote:
    > ---
    > and I still have questions about this code:
    > 1. Why here kern_mount is needed?
    > Or the first time user space `mount -t sysfs` won't do that?
    > 2. If root executes many mounts to mount sysfs on /sys and many other places,
    > are there many instances of struct vfsmount those have only
    > mnt_mountpoint different?
    > For most common case, mount a virtual filesystem(proc, sysfs, ...) on
    > multiple mounting point,
    > how to handle it more efficiently?
    > and where is a detailed explaination on kern_mount? could someone give
    > some comments or documentation pointers on this?

    See the patches that Eric Biederman just posted to lkml for why this
    structure is a static pointer this way right now, it's in preparation
    for future patches.

    Hope this helps,

    greg k-h

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      Last update: 2007-12-02 06:15    [W:0.115 / U:7.008 seconds]
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