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.
regards,
David
-
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@vger.kernel.org
More majordomo info at http://vger.kernel.org/majordomo-info.html
Please read the FAQ at http://www.tux.org/lkml/
This archive was generated by hypermail 2b29 : Sun Sep 23 2001 - 21:00:29 EST