[PATCH] change compat shmget size arg to signed

[Olaf Hering]

 On Fri, Feb 24, Stephen Rothwell wrote:

> Does the ltp test fail on a standard kernel(where SHMMAX is 0x2000000), or
> only on a SLES kernel (where SHMMAX is ULONG_MAX)?

It fails with SLES9 and SLES10. SLES9 has 0x2000000 as default.