Messages in this thread | | | Date | Wed, 30 Apr 2003 13:55:21 +0100 | From | Christoph Hellwig <> | Subject | Re: NUMA-Q sys_ioperm()/sys_iopl() |
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On Wed, Apr 30, 2003 at 05:28:25AM -0700, William Lee Irwin III wrote: > NUMA-Q cannot support these operations without significant > infrastructure to emulate a global port io space for userspace to > manipulate, possibly even with hooks into the scheduler. > > Not only are the applications depending on this particular form of > privilege elevation generally inappropriate uses of these machines > (they are large "server-class" machines, typically shipped and run > headless), but the devices typically managed with these interfaces > are already explicitly unsupported in UNIX configurations. > > This patch removes sys_iopl() and sys_ioperm() support conditional on > #ifdef CONFIG_X86_NUMAQ to prevent the device register corruption > condition without significant impact on core i386 support.
Please use cond_syscall to autogenerate the stubs, and make the compilation of /ioport.c conditional on !CONFIG_X86_NUMAQ. - 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/
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