On Mon, 18 Sep 2000, Alan Cox wrote:
>> The problem is really that SI_SIGIO is negative, but it should be positive
>> to make SI_FROMUSER return false on it.
>>
>> Changing it would unfortunately break binary compatibility. This patch
>
It would be better to change SI_SIGIO in all the
include/asm-*/siginfo.h files from -5 to __SI_CODE(__SI_SIGIO, -5)
__SI_SIGIO would become (6 << 16).
The code in arch/*/kernel/signal.c only copies the lower 16 bits to user
space. This means that the test SI_FROMKERNEL returns true and user space
still gets the same values as before.
The same trick is indeed used also in my POSIX timer patch.
Robert
-- Robert de Vries rhdv@rhdv.cistron.nl - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org Please read the FAQ at http://www.tux.org/lkml/
This archive was generated by hypermail 2b29 : Sat Sep 23 2000 - 21:00:21 EST