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authorKyle Huey <me@kylehuey.com>2017-03-20 01:16:23 -0700
committerThomas Gleixner <tglx@linutronix.de>2017-03-20 16:10:33 +0100
commitb0b9b014016d16ca7a192da986aa8ebae21bb995 (patch)
tree385c876b068fbe8fa3fc13d88bebd7ea484d8ad9 /arch/x86/kernel/process.c
parent17a6e1b8e8e8539f89156643f8c3073f09ec446a (diff)
downloadlinux-b0b9b014016d16ca7a192da986aa8ebae21bb995.tar.bz2
x86/arch_prctl: Add do_arch_prctl_common()
Add do_arch_prctl_common() to handle arch_prctls that are not specific to 64 bit mode. Call it from the syscall entry point, but not any of the other callsites in the kernel, which all want one of the existing 64 bit only arch_prctls. Signed-off-by: Kyle Huey <khuey@kylehuey.com> Cc: Grzegorz Andrejczuk <grzegorz.andrejczuk@intel.com> Cc: kvm@vger.kernel.org Cc: Radim Krčmář <rkrcmar@redhat.com> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Dave Hansen <dave.hansen@linux.intel.com> Cc: Andi Kleen <andi@firstfloor.org> Cc: linux-kselftest@vger.kernel.org Cc: Nadav Amit <nadav.amit@gmail.com> Cc: Robert O'Callahan <robert@ocallahan.org> Cc: Richard Weinberger <richard@nod.at> Cc: "Rafael J. Wysocki" <rafael.j.wysocki@intel.com> Cc: Borislav Petkov <bp@suse.de> Cc: Andy Lutomirski <luto@kernel.org> Cc: Len Brown <len.brown@intel.com> Cc: Shuah Khan <shuah@kernel.org> Cc: user-mode-linux-devel@lists.sourceforge.net Cc: Jeff Dike <jdike@addtoit.com> Cc: Alexander Viro <viro@zeniv.linux.org.uk> Cc: user-mode-linux-user@lists.sourceforge.net Cc: David Matlack <dmatlack@google.com> Cc: Boris Ostrovsky <boris.ostrovsky@oracle.com> Cc: Dmitry Safonov <dsafonov@virtuozzo.com> Cc: linux-fsdevel@vger.kernel.org Cc: Paolo Bonzini <pbonzini@redhat.com> Link: http://lkml.kernel.org/r/20170320081628.18952-6-khuey@kylehuey.com Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Diffstat (limited to 'arch/x86/kernel/process.c')
-rw-r--r--arch/x86/kernel/process.c6
1 files changed, 6 insertions, 0 deletions
diff --git a/arch/x86/kernel/process.c b/arch/x86/kernel/process.c
index 366db7782fc6..b12e95eceb83 100644
--- a/arch/x86/kernel/process.c
+++ b/arch/x86/kernel/process.c
@@ -545,3 +545,9 @@ out:
put_task_stack(p);
return ret;
}
+
+long do_arch_prctl_common(struct task_struct *task, int option,
+ unsigned long cpuid_enabled)
+{
+ return -EINVAL;
+}