If no preferred one was not found, we will use candidate page with maximum
pfn > min_pfn which is saved in high_pfn. Correct "minimum" to "maximum
candidate" in comment.

Signed-off-by: Kemeng Shi <shikemeng@huawei.com>
---
 mm/compaction.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/mm/compaction.c b/mm/compaction.c
index eb1d3d9a422c..c0d8d08fc163 100644
--- a/mm/compaction.c
+++ b/mm/compaction.c
@@ -1526,7 +1526,7 @@ static void fast_isolate_freepages(struct compact_control *cc)
 				break;
 		}
 
-		/* Use a minimum pfn if a preferred one was not found */
+		/* Use a maximum candidate pfn if a preferred one was not found */
 		if (!page && high_pfn) {
 			page = pfn_to_page(high_pfn);
 
-- 
2.30.0

On 7/21/2023 11:09 PM, Kemeng Shi wrote:
> If no preferred one was not found, we will use candidate page with maximum
> pfn > min_pfn which is saved in high_pfn. Correct "minimum" to "maximum
> candidate" in comment.
> 
> Signed-off-by: Kemeng Shi <shikemeng@huawei.com>

Yes, the 'minimum' can be confused. At least to me, it looks good.
Reviewed-by: Baolin Wang <baolin.wang@linux.alibaba.com>

> ---
>   mm/compaction.c | 2 +-
>   1 file changed, 1 insertion(+), 1 deletion(-)
> 
> diff --git a/mm/compaction.c b/mm/compaction.c
> index eb1d3d9a422c..c0d8d08fc163 100644
> --- a/mm/compaction.c
> +++ b/mm/compaction.c
> @@ -1526,7 +1526,7 @@ static void fast_isolate_freepages(struct compact_control *cc)
>   				break;
>   		}
>   
> -		/* Use a minimum pfn if a preferred one was not found */
> +		/* Use a maximum candidate pfn if a preferred one was not found */
>   		if (!page && high_pfn) {
>   			page = pfn_to_page(high_pfn);
>