On 01/15/2013 04:24 PM, Cody P Schafer wrote:
> diff --git a/mm/compaction.c b/mm/compaction.c
> index 1b52528..ea66be3 100644
> --- a/mm/compaction.c
> +++ b/mm/compaction.c
> @@ -85,7 +85,7 @@ static inline bool isolation_suitable(struct
> compact_control *cc,
> static void __reset_isolation_suitable(struct zone *zone)
> {
> unsigned long start_pfn = zone->zone_start_pfn;
> - unsigned long end_pfn = zone->zone_start_pfn + zone->spanned_pages;
> + unsigned long end_pfn = zone_end_pfn(zone);
> unsigned long pfn;
>
> zone->compact_cached_migrate_pfn = start_pfn;
> @@ -663,7 +663,7 @@ static void isolate_freepages(struct zone *zone,
> */
> high_pfn = min(low_pfn, pfn);
>
> - z_end_pfn = zone->zone_start_pfn + zone->spanned_pages;
> + z_end_pfn = zone_end_pfn(zone);
>
> /*
> * Isolate free pages until enough are available to migrate the
> @@ -920,7 +920,7 @@ static int compact_zone(struct zone *zone, struct
> compact_control *cc)
> {
> int ret;
> unsigned long start_pfn = zone->zone_start_pfn;
> - unsigned long end_pfn = zone->zone_start_pfn + zone->spanned_pages;
> + unsigned long end_pfn = zone_end_pfn(zone);
>
> ret = compaction_suitable(zone, cc->order);
> switch (ret) {
I do think theses are a _wee_ bit _too_ broken out. In this case, it's
highly beneficial to just be able to look in the same email to make sure
that, "yeah, zone_end_pfn() is the same as the code that it replaces".
The fact that it was defined 15 patches ago makes it a bit harder to
review. It's much nicer to review if there's _one_ patch that does the
"define this new function and do all of the replacements".
Anyway, the series looks good. Feel free to add my:
Reviewed-by: Dave Hansen <d...@linux.vnet.ibm.com>
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