The patch titled
Subject: mm/damon/dbgfs: rename monitor_on file to monitor_on_DEPRECATED
has been added to the -mm mm-unstable branch. Its filename is
mm-damon-dbgfs-rename-monitor_on-file-to-monitor_on_deprecated.patch
This patch will shortly appear at
https://git.kernel.org/pub/scm/linux/kernel/git/akpm/25-new.git/tree/patches/mm-damon-dbgfs-rename-monitor_on-file-to-monitor_on_deprecated.patch
This patch will later appear in the mm-unstable branch at
git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm
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------------------------------------------------------
From: SeongJae Park <sj@xxxxxxxxxx>
Subject: mm/damon/dbgfs: rename monitor_on file to monitor_on_DEPRECATED
Date: Mon, 29 Jan 2024 17:35:46 -0800
Kernel builders could silently enable CONFIG_DAMON_DBGFS_DEPRECATED.
Users who manually check the files under the DAMON debugfs directory could
notice the deprecation owing to the 'DEPRECATED' DAMON debugfs file, but
there could be users who doesn't manually check the files.
Make the deprecation cannot be ignored in the case by renaming
'monitor_on' file, which is essential for real use of DAMON on runtime, to
'monitor_on_DEPRECATED'. Still users who control DAMON via only
user-space tool could ignore the deprecation, but that's what the tool
developers should take care of. DAMON user-space tool, damo, has also
made a change[1] for the purpose.
[1] commit 935dae76f2aee ("_damon_args: Rename --damon_interface to
--damon_interface_DEPRECATED") of https://github.com/awslabs/damo
Link: https://lkml.kernel.org/r/20240130013549.89538-8-sj@xxxxxxxxxx
Signed-off-by: SeongJae Park <sj@xxxxxxxxxx>
Cc: Alex Shi <alexs@xxxxxxxxxx>
Cc: Hu Haowen <2023002089@xxxxxxxxxxxxxxxx>
Cc: Jonathan Corbet <corbet@xxxxxxx>
Cc: Shuah Khan <shuah@xxxxxxxxxx>
Cc: Yanteng Si <siyanteng@xxxxxxxxxxx>
Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
---
mm/damon/dbgfs.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
--- a/mm/damon/dbgfs.c~mm-damon-dbgfs-rename-monitor_on-file-to-monitor_on_deprecated
+++ a/mm/damon/dbgfs.c
@@ -1091,7 +1091,7 @@ static int __init __damon_dbgfs_init(voi
{
struct dentry *dbgfs_root;
const char * const file_names[] = {"mk_contexts", "rm_contexts",
- "monitor_on", "DEPRECATED"};
+ "monitor_on_DEPRECATED", "DEPRECATED"};
const struct file_operations *fops[] = {&mk_contexts_fops,
&rm_contexts_fops, &monitor_on_fops, &deprecated_fops};
int i;
_
Patches currently in -mm which might be from sj@xxxxxxxxxx are
docs-admin-guide-mm-damon-usage-use-sysfs-interface-for-tracepoints-example.patch
mm-damon-rename-config_damon_dbgfs-to-damon_dbgfs_deprecated.patch
mm-damon-dbgfs-implement-deprecation-notice-file.patch
mm-damon-dbgfs-make-debugfs-interface-deprecation-message-a-macro.patch
docs-admin-guide-mm-damon-usage-document-deprecated-file-of-damon-debugfs-interface.patch
selftets-damon-prepare-for-monitor_on-file-renaming.patch
mm-damon-dbgfs-rename-monitor_on-file-to-monitor_on_deprecated.patch
docs-admin-guide-mm-damon-usage-update-for-monitor_on-renaming.patch
docs-translations-damon-usage-update-for-monitor_on-renaming.patch
