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Docs/admin-guide/mm/damon/usage: use sysfs interface for tracepoints example

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Patch series "mm/damon: make DAMON debugfs interface deprecation
unignorable".

DAMON debugfs interface is deprecated in February 2023, by commit
5445fcbc4c ("Docs/admin-guide/mm/damon/usage: add DAMON debugfs
interface deprecation notice").  Make the fact unable to be easily ignored
by removing an example usage from the document (patch 1), renaming the
config (patch 2), adding a deprecation notice file to the debugfs
directory (patches 3-5), and renaming the debugfs file that essnetial to
be used for real use of DAMON (patches 6-9).


This patch (of 9):

DAMON tracepoints example on the DAMON usage document is using DAMON
debugfs interface, which is deprecated.  Use its alternative, DAMON sysfs
interface.

Link: https://lkml.kernel.org/r/20240130013549.89538-1-sj@kernel.org
Link: https://lkml.kernel.org/r/20240130013549.89538-2-sj@kernel.org
Signed-off-by: SeongJae Park <sj@kernel.org>
Cc: Alex Shi <alexs@kernel.org>
Cc: Hu Haowen <2023002089@link.tyut.edu.cn>
Cc: Jonathan Corbet <corbet@lwn.net>
Cc: Shuah Khan <shuah@kernel.org>
Cc: Yanteng Si <siyanteng@loongson.cn>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
This commit is contained in:
SeongJae Park 2024-01-29 17:35:40 -08:00 committed by Andrew Morton
parent eb23ee4f96
commit 5af28560fe
1 changed files with 2 additions and 2 deletions
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4
Documentation/admin-guide/mm/damon/usage.rst
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@ -579,11 +579,11 @@ monitoring results recording.
While the monitoring is turned on, you could record the tracepoint events and While the monitoring is turned on, you could record the tracepoint events and
show results using tracepoint supporting tools like ``perf``. For example:: show results using tracepoint supporting tools like ``perf``. For example::
# echo on > monitor_on # echo on > kdamonds/0/state
# perf record -e damon:damon_aggregated & # perf record -e damon:damon_aggregated &
# sleep 5 # sleep 5
# kill 9 $(pidof perf) # kill 9 $(pidof perf)
# echo off > monitor_on # echo off > kdamonds/0/state
# perf script # perf script
kdamond.0 46568 [027] 79357.842179: damon:damon_aggregated: target_id=0 nr_regions=11 122509119488-135708762112: 0 864 kdamond.0 46568 [027] 79357.842179: damon:damon_aggregated: target_id=0 nr_regions=11 122509119488-135708762112: 0 864
[...] [...]