Re: [PATCH] x86: use bitmap library functions

[Ingo Molnar]

* Akinobu Mita <akinobu.mita@xxxxxxxxx> wrote:

> Use bitmap_set()/bitmap_clear() to fill/zero a region of a bitmap
> instead of doing set_bit()/clear_bit() each bit.
> 
> Signed-off-by: Akinobu Mita <akinobu.mita@xxxxxxxxx>
> Cc: Thomas Gleixner <tglx@xxxxxxxxxxxxx>
> Cc: Ingo Molnar <mingo@xxxxxxxxxx>
> Cc: "H. Peter Anvin" <hpa@xxxxxxxxx>
> Cc: x86@xxxxxxxxxx
> ---
>  arch/x86/kernel/ioport.c |   20 +++++---------------
>  1 files changed, 5 insertions(+), 15 deletions(-)

Before we can merge this it would be nice to tested this using sys_ioperm(), to make 
sure port IO still gets denied/allowed as expected. You can check /proc/ioperm to 
see which ports are (probably) safe to read: 0x80/0xed is usually safe to 
read/write.

	Ingo
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