linux-kernel - [PATCH] generic syscalls: wire up userfaultfd syscall

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Date:	Tue, 22 Sep 2015 11:52:19 +0100
From:	Andre Przywara <andre.przywara@....com>
To:	Arnd Bergmann <arnd@...db.de>
Cc:	linux-arch@...r.kernel.org, linux-api@...r.kernel.org,
	linux-kernel@...r.kernel.org, linux-arm-kernel@...ts.infradead.org,
	catalin.marinas@....com, will.deacon@....com
Subject: [PATCH] generic syscalls: wire up userfaultfd syscall

Enable the new userfaultfd syscall in the generic syscall table.
Briefly tested on arm64 with the selftest from the tools directory.

Signed-off-by: Andre Przywara <andre.przywara@....com>
---
 include/uapi/asm-generic/unistd.h | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/include/uapi/asm-generic/unistd.h b/include/uapi/asm-generic/unistd.h
index 8da542a..82c91bc 100644
--- a/include/uapi/asm-generic/unistd.h
+++ b/include/uapi/asm-generic/unistd.h
@@ -711,9 +711,11 @@ __SYSCALL(__NR_bpf, sys_bpf)
 __SC_COMP(__NR_execveat, sys_execveat, compat_sys_execveat)
 #define __NR_membarrier 282
 __SYSCALL(__NR_membarrier, sys_membarrier)
+#define __NR_userfaultfd 283
+__SYSCALL(__NR_userfaultfd, sys_userfaultfd)
 
 #undef __NR_syscalls
-#define __NR_syscalls 283
+#define __NR_syscalls 284
 
 /*
  * All syscalls below here should go away really,
-- 
2.5.1

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