• Roland McGrath's avatar
    x86_64 ia32 syscall audit fast-path · 5cbf1565
    Roland McGrath authored
    This adds fast paths for 32-bit syscall entry and exit when
    TIF_SYSCALL_AUDIT is set, but no other kind of syscall tracing.
    These paths does not need to save and restore all registers as
    the general case of tracing does.  Avoiding the iret return path
    when syscall audit is enabled helps performance a lot.
    Signed-off-by: default avatarRoland McGrath <roland@redhat.com>
    5cbf1565
entry_64.S 34.5 KB