From: Robert Love <[EMAIL PROTECTED]> Date: Wed, 27 Jul 2005 13:31:36 -0400
> [ I don't think we need sys32 compatibility versions--and if we do, I > failed in life. ] add_watch and rm_watch both do, because system call arguments are zero-extended by default for compat tasks, thus the "fd" arg needs sign extension. You'll notice that sys_ppc32.c has a ton of shims which purely exist to sign extend "int" system call arguments. Sparc64 does something similarly, but in assembler so that we don't eat the overhead of a full stack frame just to sign extend arguments. - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to [EMAIL PROTECTED] More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
