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    SubjectRe: sysfs root link count broken in 2.6.22-git5
    Hi Andreas,

    On Wed, 18 Jul 2007 22:12:52 +0200, Andreas Schwab wrote:
    > Jean Delvare <> writes:
    > > Maybe getmntent(3)? Sure I could use this, but how expensive compared
    > > to a single stat(2).
    > How about comparing the device numbers of /sys and its parent? If they
    > are different then /sys is a mount point.

    Nice trick, thanks. It's slightly more expensive than my current code
    (two calls to stat(2) instead of one) but also more reliable. I'll
    consider it when we get rid of libsysfs.

    Jean Delvare
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