• Ingo Molnar's avatar
    x86/fpu: Uninline kernel_fpu_begin()/end() · d63e79b1
    Ingo Molnar authored
    Both inline functions call an inline function unconditionally, so we
    already pay the function call based clobbering cost. Uninline them.
    
    This saves quite a bit of code in various performance sensitive
    code paths:
    
       text            data    bss     dec             hex     filename
       13321334        2569888 1634304 17525526        10b6b16 vmlinux.before
       13320246        2569888 1634304 17524438        10b66d6 vmlinux.after
    Reviewed-by: default avatarBorislav Petkov <bp@alien8.de>
    Cc: Andy Lutomirski <luto@amacapital.net>
    Cc: Dave Hansen <dave.hansen@linux.intel.com>
    Cc: Fenghua Yu <fenghua.yu@intel.com>
    Cc: H. Peter Anvin <hpa@zytor.com>
    Cc: Linus Torvalds <torvalds@linux-foundation.org>
    Cc: Oleg Nesterov <oleg@redhat.com>
    Cc: Peter Zijlstra <peterz@infradead.org>
    Cc: Thomas Gleixner <tglx@linutronix.de>
    Signed-off-by: default avatarIngo Molnar <mingo@kernel.org>
    d63e79b1
api.h 2.5 KB