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    SubjectRe: EFAULT from file read.
    Alexander Viro ¼g¹D¡G
    > On Tue, 18 Sep 2001, Richard B. Johnson wrote:
    > > File I/O requires a process context. Your file descriptor means
    > > nothing unless associated with the process that opened the file.
    > It fscking doesn't. He had clearly said that he calls file->f_op->read(),
    > which has nothing whatsofuckingever to descriptors. Sod off and don't
    > return until you learn to read.
    > As for the original question - grep fro set_fs and you'll see what to
    > do (basically, set_fs(KERNEL_DS) before the call of ->read() and restore
    > afterwards).

    Problem solved by calling dummy=set_fs(KERNEL_DS) . But remember to call
    set_fs(dummy) to restore after the read.


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