[patch 104/262] mm/page_alloc.c: simplify the code by using macro K()

Andrew Morton
2021-11-05T20:40:08Z

From: Miaohe Lin <linmiaohe@huawei.com>
Subject: 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.

Link: https://lkml.kernel.org/r/20210902121242.41607-3-linmiaohe@huawei.com
Signed-off-by: Miaohe Lin <linmiaohe@huawei.com>
Acked-by: Mel Gorman <mgorman@techsingularity.net>
Reviewed-by: David Hildenbrand <david@redhat.com>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Stephen Rothwell <sfr@canb.auug.org.au>
Cc: Vlastimil Babka <vbabka@suse.cz>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
---

mm/page_alloc.c | 12 +++++-------
1 file changed, 5 insertions(+), 7 deletions(-)

--- a/mm/page_alloc.c~mm-page_allocc-simplify-the-code-by-using-macro-k
+++ a/mm/page_alloc.c
@@ -8130,8 +8130,7 @@ unsigned long free_reserved_area(void *s
}

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;
}
@@ -8176,14 +8175,13 @@ 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
);
}
_