Re: [Qemu-devel] [PATCH] memory: fix usage of find_next_bit and find_next_zero_bit

[Leon Alrae]

On 10/02/16 14:11, Paolo Bonzini wrote:
> The last two arguments to these functions are the last and first bit to
> check relative to the base.  The code was using incorrectly the first
> bit and the number of bits.  Fix this in cpu_physical_memory_get_dirty
> and cpu_physical_memory_all_dirty.  This requires a few changes in the
> iteration; change the code in cpu_physical_memory_set_dirty_range to
> match.
> 
> Fixes: 5b82b70
> Cc: Stefan Hajnoczi <address@hidden>
> Signed-off-by: Paolo Bonzini <address@hidden>
> ---
>  include/exec/ram_addr.h | 55 
> ++++++++++++++++++++++++++++++++-----------------
>  1 file changed, 36 insertions(+), 19 deletions(-)

It fixes the performance problem I was seeing:

Tested-by: Leon Alrae <address@hidden>

Thanks,
Leon