Re: [Qemu-devel] [PATCH 1/4] exec: simplify phys_page_find() params

[David Gibson]

On Mon, May 15, 2017 at 04:50:57PM +0800, Peter Xu wrote:
> It really only plays with the dispatchers, so the parameter list does
> not need that complexity. This helps for readability at least.
> 
> Signed-off-by: Peter Xu <address@hidden>

Reviewed-by: David Gibson <address@hidden>

> ---
>  exec.c | 13 ++++++-------
>  1 file changed, 6 insertions(+), 7 deletions(-)
> 
> diff --git a/exec.c b/exec.c
> index eac6085..1d76c63 100644
> --- a/exec.c
> +++ b/exec.c
> @@ -371,10 +371,11 @@ static inline bool section_covers_addr(const 
> MemoryRegionSection *section,
>                               int128_getlo(section->size), addr);
>  }
>  
> -static MemoryRegionSection *phys_page_find(PhysPageEntry lp, hwaddr addr,
> -                                           Node *nodes, MemoryRegionSection 
> *sections)
> +static MemoryRegionSection *phys_page_find(AddressSpaceDispatch *d, hwaddr 
> addr)
>  {
> -    PhysPageEntry *p;
> +    PhysPageEntry lp = d->phys_map, *p;
> +    Node *nodes = d->map.nodes;
> +    MemoryRegionSection *sections = d->map.sections;
>      hwaddr index = addr >> TARGET_PAGE_BITS;
>      int i;
>  
> @@ -412,8 +413,7 @@ static MemoryRegionSection 
> *address_space_lookup_region(AddressSpaceDispatch *d,
>          section_covers_addr(section, addr)) {
>          update = false;
>      } else {
> -        section = phys_page_find(d->phys_map, addr, d->map.nodes,
> -                                 d->map.sections);
> +        section = phys_page_find(d, addr);
>          update = true;
>      }
>      if (resolve_subpage && section->mr->subpage) {
> @@ -1246,8 +1246,7 @@ static void register_subpage(AddressSpaceDispatch *d, 
> MemoryRegionSection *secti
>      subpage_t *subpage;
>      hwaddr base = section->offset_within_address_space
>          & TARGET_PAGE_MASK;
> -    MemoryRegionSection *existing = phys_page_find(d->phys_map, base,
> -                                                   d->map.nodes, 
> d->map.sections);
> +    MemoryRegionSection *existing = phys_page_find(d, base);
>      MemoryRegionSection subsection = {
>          .offset_within_address_space = base,
>          .size = int128_make64(TARGET_PAGE_SIZE),

-- 
David Gibson                    | I'll have my music baroque, and my code
david AT gibson.dropbear.id.au  | minimalist, thank you.  NOT _the_ _other_
                                | _way_ _around_!
http://www.ozlabs.org/~dgibson

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