linux-kernel - [PATCH 0/4] mm/damon: allow users know which monitoring ops are available

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Message-Id: <20220426203843.45238-1-sj@kernel.org>
Date:   Tue, 26 Apr 2022 20:38:39 +0000
From:   sj@...nel.org
To:     akpm@...ux-foundation.org
Cc:     linux-damon@...zon.com, linux-mm@...ck.org,
        linux-kernel@...r.kernel.org, SeongJae Park <sj@...nel.org>
Subject: [PATCH 0/4] mm/damon: allow users know which monitoring ops are available

From: SeongJae Park <sj@...nel.org>

DAMON users can configure it for vaious address spaces including virtual
address spaces and the physical address space by setting its monitoring
operations set with appropriate one for their purpose.  However, there
is no celan and simple way to know exactly which monitoring operations
sets are available on the currently running kernel.  This patchset adds
functions for the purpose on DAMON's kernel API
('damon_is_registered_ops()') and sysfs interface ('avail_operations'
file under each context directory).

SeongJae Park (4):
  mm/damon/core: add a function for damon_operations registration checks
  mm/damon/sysfs: add a file for listing available monitoring ops
  selftets/damon/sysfs: test existence and permission of
    avail_operations
  Docs/{ABI,admin-guide}/damon: document 'avail_operations' sysfs file

 .../ABI/testing/sysfs-kernel-mm-damon         | 10 +++++++-
 Documentation/admin-guide/mm/damon/usage.rst  | 18 +++++++++-----
 include/linux/damon.h                         |  1 +
 mm/damon/core.c                               | 24 ++++++++++++++++---
 mm/damon/sysfs.c                              | 19 +++++++++++++++
 tools/testing/selftests/damon/sysfs.sh        |  1 +
 6 files changed, 63 insertions(+), 10 deletions(-)

-- 
2.25.1