From 194d52d771b8f7cf5bcf0f81f87dd76e492c355c Mon Sep 17 00:00:00 2001
From: Jiajian Ye
Date: Thu, 24 Mar 2022 18:09:31 -0700
Subject: tools/vm/page_owner_sort: support for sorting by task command name

When viewing page owner information, we may also need to the block to be
sorted by task command name.  Therefore, the following adjustments are
made:

1. Add a member variable to record task command name of block.

2. Add a new -n option to sort the information of blocks by task command
   name.

3. Add -n option explanation in the document.

Link: https://lkml.kernel.org/r/20220306030640.43054-2-yejiajian2018@email.szu.edu.cn
Signed-off-by: Jiajian Ye <yejiajian2018@email.szu.edu.cn>
Cc: Stephen Rothwell <sfr@canb.auug.org.au>
Cc: Sean Anderson <seanga2@gmail.com>
Cc: Yixuan Cao <caoyixuan2019@email.szu.edu.cn>
Cc: Zhenliang Wei <weizhenliang@huawei.com>
Cc: <zhaochongxi2019@email.szu.edu.cn>
Cc: <hanshenghong2019@email.szu.edu.cn>
Cc: <zhangyinan2019@email.szu.edu.cn>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
---
 Documentation/vm/page_owner.rst | 1 +
 1 file changed, 1 insertion(+)

(limited to 'Documentation/vm')

diff --git a/Documentation/vm/page_owner.rst b/Documentation/vm/page_owner.rst
index 941543a797fe..d658436a5e09 100644
--- a/Documentation/vm/page_owner.rst
+++ b/Documentation/vm/page_owner.rst
@@ -117,6 +117,7 @@ Usage
 		-m		Sort by total memory.
 		-p		Sort by pid.
 		-P		Sort by tgid.
+		-n		Sort by task command name.
 		-r		Sort by memory release time.
 		-s		Sort by stack trace.
 		-t		Sort by times (default).
-- 
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