[RFC 20/30] x86/entry: Add C code for fast system call entries

This handles both SYSENTER and SYSCALL. The asm glue will take care of the differences. Signed-off-by: Andy Lutomirski --- arch/x86/entry/common.c | 39 +++ 1 file changed, 39 insertions(+) diff --git a/arch/x86/entry/common.c b/arch/x86/entry/common.c

[RFC 20/30] x86/entry: Add C code for fast system call entries

This handles both SYSENTER and SYSCALL. The asm glue will take care of the differences. Signed-off-by: Andy Lutomirski --- arch/x86/entry/common.c | 39 +++ 1 file changed, 39 insertions(+) diff --git a/arch/x86/entry/common.c