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Date: Tue, 8 Dec 2015 05:15:05 +0000 From: Al Viro <viro@...IV.linux.org.uk> To: Ingo Molnar <mingo@...nel.org> Cc: Arnd Bergmann <arnd@...db.de>, Andy Lutomirski <luto@...capital.net>, Linus Torvalds <torvalds@...ux-foundation.org>, X86 ML <x86@...nel.org>, "linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>, linux-arch <linux-arch@...r.kernel.org>, David Miller <davem@...emloft.net> Subject: Re: [PSEUDOPATCH] rename is_compat_task On Tue, Dec 08, 2015 at 06:01:48AM +0100, Ingo Molnar wrote: > Hm, so if Sparc has no notion of compat-ness of the system call then how does it > implement runtime compat checks, such as AUDIT_ARCH et al? Badly. Things like compat_sys_ioctl() vs. ioctl() work (we use different arrays of function pointers in 32bit and 64bit traps), but anything dynamic assumes that things match the task. Not that we had a lot of such dynamic checks, actually... -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@...r.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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