From: Pengyu Zhang <zpenya1314@gmail.com>
To: alexs@kernel.org, siyanteng@loongson.cn, corbet@lwn.net,
seakeel@gmail.com, si.yanteng@linux.dev
Cc: linux-doc@vger.kernel.org, linux-kernel@vger.kernel.org,
zpenya1314@gmail.com, yaxin_wang_uestc@163.com,
zenghui.yu@linux.dev
Subject: [PATCH v5 3/3] Docs/zh_CN: Fix the pfn calculation error in page_tables.rst
Date: Mon, 14 Oct 2024 23:55:26 +0800 [thread overview]
Message-ID: <20241014155526.17065-4-zpenya1314@gmail.com> (raw)
In-Reply-To: <20241014155526.17065-1-zpenya1314@gmail.com>
Synchronize the changes of origin document to fix the pfn value.
Signed-off-by: Pengyu Zhang <zpenya1314@gmail.com>
---
Documentation/translations/zh_CN/mm/page_tables.rst | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/Documentation/translations/zh_CN/mm/page_tables.rst b/Documentation/translations/zh_CN/mm/page_tables.rst
index 544381c348b1..b0700a5a8bf1 100644
--- a/Documentation/translations/zh_CN/mm/page_tables.rst
+++ b/Documentation/translations/zh_CN/mm/page_tables.rst
@@ -32,7 +32,7 @@ Linux 将页表定义为一个分级结构，目前有五级。对于支持的
在页粒度为 4KB 且地址范围为32位的情况下，pfn 0 对应地址0x00000000，pfn 1 对应
地址0x00001000，pfn 2 对应地址 0x00002000，以此类推，直到 pfn 0xfffff 对应
0xfffff000。如果页粒度为 16KB，则 pfn 分别对应地址 0x00004000、0x00008000
-... 0xffffc000，pfn 的范围从 0 到 0x3fffff。
+... 0xffffc000，pfn 的范围从 0 到 0x3ffff。
如你所见，对于 4KB 页面粒度，页基址使用地址的 12-31 位，这就是为什么在这种情况下
`PAGE_SHIFT` 被定义为 12，并且 `PAGE_SIZE` 通常由页偏移定义，为 `(1 << PAGE_SHIFT)`。
--
2.25.1
next prev parent reply other threads:[~2024-10-14 15:56 UTC|newest]
Thread overview: 7+ messages / expand[flat|nested] mbox.gz Atom feed top
2024-10-14 15:55 [PATCH v5 0/3] Translate page_tables.rst and fix PFN calculation Pengyu Zhang
2024-10-14 15:55 ` [PATCH v5 1/3] Docs/zh_CN: Translate page_tables.rst to Simplified Chinese Pengyu Zhang
2024-10-15 2:23 ` Yanteng Si
2024-10-14 15:55 ` [PATCH v5 2/3] Docs/mm: Fix a mistake for pfn in page_tables.rst Pengyu Zhang
2024-10-15 2:29 ` Yanteng Si
2024-10-14 15:55 ` Pengyu Zhang [this message]
2024-10-15 2:30 ` [PATCH v5 3/3] Docs/zh_CN: Fix the pfn calculation error " Yanteng Si
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