Re: [PATCH] bitops: remove "optimizations"

David Miller
2008-04-29T10:03:43Z

From: Thomas Gleixner <tglx@linutronix.de>
Date: Tue, 29 Apr 2008 12:01:02 +0200 (CEST)

> The mapsize optimizations which were moved from x86 to the generic
> code in commit 64970b68d2b3ed32b964b0b30b1b98518fde388e increased the
> binary size on non x86 architectures.
>
> Looking into the real effects of the "optimizations" it turned out
> that they are not used in find_next_bit() and find_next_zero_bit().
>
> The ones in find_first_bit() and find_first_zero_bit() are used in a
> couple of places but none of them is a real hot path.
>
> Remove the "optimizations" all together and call the library functions
> unconditionally.
>
> Boot-tested on x86 and compile tested on every cross compiler I have.
>
> Signed-off-by: Thomas Gleixner <tglx@linutronix.de>

Acked-by: David S. Miller <davem@davemloft.net>