Re: [Qemu-devel] [PATCH 19/23] userfaultfd: activate syscall
From: Bharata B Rao <hidden>
Date: 2015-08-11 10:08:37
Also in:
kvm, linux-mm, lkml, qemu-devel
Subsystem:
linux for powerpc (32-bit and 64-bit), the rest · Maintainers:
Madhavan Srinivasan, Michael Ellerman, Linus Torvalds
On Thu, May 14, 2015 at 07:31:16PM +0200, Andrea Arcangeli wrote:
quoted hunk ↗ jump to hunk
This activates the userfaultfd syscall. Signed-off-by: Andrea Arcangeli <redacted> --- arch/powerpc/include/asm/systbl.h | 1 + arch/powerpc/include/uapi/asm/unistd.h | 1 + arch/x86/syscalls/syscall_32.tbl | 1 + arch/x86/syscalls/syscall_64.tbl | 1 + include/linux/syscalls.h | 1 + kernel/sys_ni.c | 1 + 6 files changed, 6 insertions(+)diff --git a/arch/powerpc/include/asm/systbl.h b/arch/powerpc/include/asm/systbl.h index f1863a1..4741b15 100644 --- a/arch/powerpc/include/asm/systbl.h +++ b/arch/powerpc/include/asm/systbl.h@@ -368,3 +368,4 @@ SYSCALL_SPU(memfd_create) SYSCALL_SPU(bpf) COMPAT_SYS(execveat) PPC64ONLY(switch_endian) +SYSCALL_SPU(userfaultfd)diff --git a/arch/powerpc/include/uapi/asm/unistd.h b/arch/powerpc/include/uapi/asm/unistd.h index e4aa173..6ad58d4 100644 --- a/arch/powerpc/include/uapi/asm/unistd.h +++ b/arch/powerpc/include/uapi/asm/unistd.h@@ -386,5 +386,6 @@ #define __NR_bpf 361 #define __NR_execveat 362 #define __NR_switch_endian 363 +#define __NR_userfaultfd 364
May be it is a bit late to bring this up, but I needed the following fix to userfault21 branch of your git tree to compile on powerpc. ---- powerpc: Bump up __NR_syscalls to account for __NR_userfaultfd From: Bharata B Rao <redacted> With userfaultfd syscall, the number of syscalls will be 365 on PowerPC. Reflect the same in __NR_syscalls. Signed-off-by: Bharata B Rao <redacted> --- arch/powerpc/include/asm/unistd.h | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/arch/powerpc/include/asm/unistd.h b/arch/powerpc/include/asm/unistd.h
index f4f8b66..4a055b6 100644
--- a/arch/powerpc/include/asm/unistd.h
+++ b/arch/powerpc/include/asm/unistd.h@@ -12,7 +12,7 @@ #include <uapi/asm/unistd.h> -#define __NR_syscalls 364 +#define __NR_syscalls 365 #define __NR__exit __NR_exit #define NR_syscalls __NR_syscalls