The patch titled
Subject: Documentation/vm/page_owner.rst: update the documentation
has been removed from the -mm tree. Its filename was
documentation-vm-page_ownerrst-update-the-documentation.patch
This patch was dropped because it was merged into mainline or a subsystem tree
------------------------------------------------------
From: Shenghong Han <hanshenghong2019@xxxxxxxxxxxxxxxx>
Subject: Documentation/vm/page_owner.rst: update the documentation
Update the documentation of ``page_owner``.
[akpm@xxxxxxxxxxxxxxxxxxxx: small grammatical tweaks]
Link: https://lkml.kernel.org/r/20211214134736.2569-1-hanshenghong2019@xxxxxxxxxxxxxxxx
Signed-off-by: Shenghong Han <hanshenghong2019@xxxxxxxxxxxxxxxx>
Cc: Jonathan Corbet <corbet@xxxxxxx>
Cc: Vlastimil Babka <vbabka@xxxxxxx>
Cc: Georgi Djakov <georgi.djakov@xxxxxxxxxx>
Cc: Liam Mark <lmark@xxxxxxxxxxxxxx>
Cc: Tang Bin <tangbin@xxxxxxxxxxxxxxxxxxxx>
Cc: Zhang Shengju <zhangshengju@xxxxxxxxxxxxxxxxxxxx>
Cc: Zhenliang Wei <weizhenliang@xxxxxxxxxx>
Cc: Xiaoming Ni <nixiaoming@xxxxxxxxxx>
Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
---
Documentation/vm/page_owner.rst | 23 +++++++++++++++++++++--
1 file changed, 21 insertions(+), 2 deletions(-)
--- a/Documentation/vm/page_owner.rst~documentation-vm-page_ownerrst-update-the-documentation
+++ a/Documentation/vm/page_owner.rst
@@ -97,7 +97,7 @@ Usage
The ``page_owner_sort`` tool ignores ``PFN`` rows, puts the remaining rows
in buf, uses regexp to extract the page order value, counts the times
- and pages of buf, and finally sorts them according to the times.
+ and pages of buf, and finally sorts them according to the parameter(s).
See the result about who allocated each page
in the ``sorted_page_owner.txt``. General output::
@@ -107,4 +107,23 @@ Usage
// Detailed stack
By default, ``page_owner_sort`` is sorted according to the times of buf.
- If you want to sort by the pages nums of buf, use the ``-m`` parameter.
+ If you want to sort by the page nums of buf, use the ``-m`` parameter.
+ The detailed parameters are:
+
+ fundamental function:
+
+ Sort:
+ -a Sort by memory allocation time.
+ -m Sort by total memory.
+ -p Sort by pid.
+ -r Sort by memory release time.
+ -s Sort by stack trace.
+ -t Sort by times (default).
+
+ additional function:
+
+ Cull:
+ -c Cull by comparing stacktrace instead of total block.
+
+ Filter:
+ -f Filter out the information of blocks whose memory has not been released.
_
Patches currently in -mm which might be from hanshenghong2019@xxxxxxxxxxxxxxxx are
