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mm/page_alloc: update comments for rmqueue()

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Since commit 44042b4498 ("mm/page_alloc: allow high-order pages to be
stored on the per-cpu lists"), the per-cpu page allocators (PCP) is not
only for order-0 pages.  Update the comments.

Link: https://lkml.kernel.org/r/20220918025640.208586-1-ran.xiaokai@zte.com.cn
Signed-off-by: Ran Xiaokai <ran.xiaokai@zte.com.cn>
Cc: Mel Gorman <mgorman@techsingularity.net>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
This commit is contained in:
Ran Xiaokai 2022-09-18 02:56:40 +00:00 • committed by Andrew Morton
parent e3e486e634
commit a57ae9ef9e
1 changed files with 2 additions and 1 deletions
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mm/page_alloc.c
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@ -3810,7 +3810,8 @@ static struct page *rmqueue_pcplist(struct zone *preferred_zone,
}
/*
* Allocate a page from the given zone. Use pcplists for order-0 allocations.
* Allocate a page from the given zone.
* Use pcplists for THP or "cheap" high-order allocations.
*/
/*