linux-kernel - [PATCH] mm/memblock: print memblock

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Message-Id: <20180508104223.8028-1-minchan@kernel.org>
Date:   Tue,  8 May 2018 19:42:23 +0900
From:   Minchan Kim <minchan@...nel.org>
To:     Andrew Morton <akpm@...ux-foundation.org>
Cc:     Michal Hocko <mhocko@...e.com>,
        LKML <linux-kernel@...r.kernel.org>,
        linux-mm <linux-mm@...ck.org>, Minchan Kim <minchan@...nel.org>
Subject: [PATCH] mm/memblock: print memblock_remove

memblock_remove report is useful to see why MemTotal of /proc/meminfo
between two kernels makes difference.

Signed-off-by: Minchan Kim <minchan@...nel.org>
---
 mm/memblock.c | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/mm/memblock.c b/mm/memblock.c
index 5228f594b13c..03d48d8835ba 100644
--- a/mm/memblock.c
+++ b/mm/memblock.c
@@ -697,6 +697,11 @@ static int __init_memblock memblock_remove_range(struct memblock_type *type,
 
 int __init_memblock memblock_remove(phys_addr_t base, phys_addr_t size)
 {
+	phys_addr_t end = base + size - 1;
+
+	memblock_dbg("memblock_remove: [%pa-%pa] %pS\n",
+		     &base, &end, (void *)_RET_IP_);
+
 	return memblock_remove_range(&memblock.memory, base, size);
 }
 
-- 
2.17.0.441.gb46fe60e1d-goog