linux-kernel - [PATCH v2 2/5] mm/page_alloc.c: simplify the code by using macro K()

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Message-ID: <20210902121242.41607-3-linmiaohe@huawei.com>
Date:   Thu, 2 Sep 2021 20:12:39 +0800
From:   Miaohe Lin <linmiaohe@...wei.com>
To:     <akpm@...ux-foundation.org>
CC:     <vbabka@...e.cz>, <sfr@...b.auug.org.au>, <peterz@...radead.org>,
        <mgorman@...hsingularity.net>, <david@...hat.com>,
        <linux-mm@...ck.org>, <linux-kernel@...r.kernel.org>,
        <linmiaohe@...wei.com>
Subject: [PATCH v2 2/5] mm/page_alloc.c: simplify the code by using macro K()

Use helper macro K() to convert the pages to the corresponding size.
Minor readability improvement.

Signed-off-by: Miaohe Lin <linmiaohe@...wei.com>
Acked-by: Mel Gorman <mgorman@...hsingularity.net>
Reviewed-by: David Hildenbrand <david@...hat.com>
---
 mm/page_alloc.c | 12 +++++-------
 1 file changed, 5 insertions(+), 7 deletions(-)

diff --git a/mm/page_alloc.c b/mm/page_alloc.c
index dbb3338d9287..d3983244f56f 100644
--- a/mm/page_alloc.c
+++ b/mm/page_alloc.c
@@ -8134,8 +8134,7 @@ unsigned long free_reserved_area(void *start, void *end, int poison, const char
 	}
 
 	if (pages && s)
-		pr_info("Freeing %s memory: %ldK\n",
-			s, pages << (PAGE_SHIFT - 10));
+		pr_info("Freeing %s memory: %ldK\n", s, K(pages));
 
 	return pages;
 }
@@ -8180,14 +8179,13 @@ void __init mem_init_print_info(void)
 		", %luK highmem"
 #endif
 		")\n",
-		nr_free_pages() << (PAGE_SHIFT - 10),
-		physpages << (PAGE_SHIFT - 10),
+		K(nr_free_pages()), K(physpages),
 		codesize >> 10, datasize >> 10, rosize >> 10,
 		(init_data_size + init_code_size) >> 10, bss_size >> 10,
-		(physpages - totalram_pages() - totalcma_pages) << (PAGE_SHIFT - 10),
-		totalcma_pages << (PAGE_SHIFT - 10)
+		K(physpages - totalram_pages() - totalcma_pages),
+		K(totalcma_pages)
 #ifdef	CONFIG_HIGHMEM
-		, totalhigh_pages() << (PAGE_SHIFT - 10)
+		, K(totalhigh_pages())
 #endif
 		);
 }
-- 
2.23.0