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    SubjectRe: sysfs root link count broken in 2.6.22-git5

    On Jul 19 2007 10:41, Jean Delvare wrote:
    >> Well, just check if /sys/devices/ exists, that should be cheap enough. :)
    >Yes, this is a possibility, and one I had considered at first. But I
    >wasn't sure which subdirectory to check. sysfs isn't well known for its
    >stability, and I didn't know which directories exist since the
    >early days of sysfs, and which do not. For example, fs, kernel and
    >module were not present in 2.6.5. I am also not sure if directories
    >which exist today are guaranteed to exist forever. This is the reason
    >why I decided to check the link count instead, basically checking that
    >at least one subdirectory exists, without having to name it.

    If anything exists, it is likely to be mounted.
    opendir, 3x readdir, exit the loop, done :)

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