From: Cao jin <jojing64@gmail.com>
To: x86@kernel.org, linux-kernel@vger.kernel.org
Cc: tglx@linutronix.de, mingo@redhat.com, bp@alien8.de,
hpa@zytor.com, dave.hansen@linux.intel.com, luto@kernel.org,
peterz@infradead.org, Cao jin <jojing64@gmail.com>
Subject: [PATCH] x86/mm: Fix copy&paste error in comments
Date: Tue, 20 Apr 2021 13:34:32 +0800 [thread overview]
Message-ID: <20210420053432.4842-1-jojing64@gmail.com> (raw)
Direct page mapping in bottom-up way will allocate memory from low
address for page structures in a range, which is the *bottom*,
not the *end*.
Signed-off-by: Cao jin <jojing64@gmail.com>
---
arch/x86/mm/init.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/arch/x86/mm/init.c b/arch/x86/mm/init.c
index e26f5c5c6565..bc2f871c75f1 100644
--- a/arch/x86/mm/init.c
+++ b/arch/x86/mm/init.c
@@ -663,7 +663,7 @@ static void __init memory_map_bottom_up(unsigned long map_start,
/*
* We start from the bottom (@map_start) and go to the top (@map_end).
* The memblock_find_in_range() gets us a block of RAM from the
- * end of RAM in [min_pfn_mapped, max_pfn_mapped) used as new pages
+ * bottom of RAM in [min_pfn_mapped, max_pfn_mapped) used as new pages
* for page table.
*/
while (start < map_end) {
--
2.30.1
next reply other threads:[~2021-04-20 5:36 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-04-20 5:34 Cao jin [this message]
2021-04-22 9:29 ` Ts'o
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