linux-kernel - Re: [PATCH] Docs/admin-guide/mm/damon/usage: fix the example code snip

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Date:   Mon, 22 Aug 2022 17:05:00 +0000
From:   SeongJae Park <sj@...nel.org>
To:     SeongJae Park <sj@...nel.org>
Cc:     Kairui Song <ryncsn@...il.com>, damon@...ts.linux.dev,
        Jonathan Corbet <corbet@....net>, linux-mm@...ck.org,
        linux-doc@...r.kernel.org, linux-kernel@...r.kernel.org,
        Kairui Song <kasong@...cent.com>
Subject: Re: [PATCH] Docs/admin-guide/mm/damon/usage: fix the example code snip

On Mon, 22 Aug 2022 16:56:46 +0000 SeongJae Park <sj@...nel.org> wrote:

> Hi Kairui,
> 
> 
> On Mon, 22 Aug 2022 18:56:17 +0800 Kairui Song <ryncsn@...il.com> wrote:
> 
> > From: Kairui Song <kasong@...cent.com>
> > 
> > The workflow example code is not working since it got the file names
> > wrong. So fix this.
> 
> Nice finding, thank you for this patch!
> 
> > 

Oh, I forgot saying that it would be good to have Fixes: here, like below:

Fixes: b18402726bd1 ("Docs/admin-guide/mm/damon/usage: document DAMON sysfs interface")

I wouldn't say this needs to Cc stable@, as this is just a document example
fix.  Nevertheless, if anyone has a different opinion, please shout out.


Thanks,
SJ

> > Signed-off-by: Kairui Song <kasong@...cent.com>
> 
> Reviewed-by: SeongJae Park <sj@...nel.org>
> 
> 
> Thanks,
> SJ
> 
> > ---
> >  Documentation/admin-guide/mm/damon/usage.rst | 18 +++++++++---------
> >  1 file changed, 9 insertions(+), 9 deletions(-)
> > 
> > diff --git a/Documentation/admin-guide/mm/damon/usage.rst b/Documentation/admin-guide/mm/damon/usage.rst
> > index d52f572a90298..ca91ecc290785 100644
> > --- a/Documentation/admin-guide/mm/damon/usage.rst
> > +++ b/Documentation/admin-guide/mm/damon/usage.rst
> > @@ -50,10 +50,10 @@ For a short example, users can monitor the virtual address space of a given
> >  workload as below. ::
> >  
> >      # cd /sys/kernel/mm/damon/admin/
> > -    # echo 1 > kdamonds/nr && echo 1 > kdamonds/0/contexts/nr
> > +    # echo 1 > kdamonds/nr_kdamonds && echo 1 > kdamonds/0/contexts/nr_contexts
> >      # echo vaddr > kdamonds/0/contexts/0/operations
> > -    # echo 1 > kdamonds/0/contexts/0/targets/nr
> > -    # echo $(pidof <workload>) > kdamonds/0/contexts/0/targets/0/pid
> > +    # echo 1 > kdamonds/0/contexts/0/targets/nr_targets
> > +    # echo $(pidof <workload>) > kdamonds/0/contexts/0/targets/0/pid_target
> >      # echo on > kdamonds/0/state
> >  
> >  Files Hierarchy
> > @@ -366,12 +366,12 @@ memory rate becomes larger than 60%, or lower than 30%". ::
> >      # echo 1 > kdamonds/0/contexts/0/schemes/nr_schemes
> >      # cd kdamonds/0/contexts/0/schemes/0
> >      # # set the basic access pattern and the action
> > -    # echo 4096 > access_patterns/sz/min
> > -    # echo 8192 > access_patterns/sz/max
> > -    # echo 0 > access_patterns/nr_accesses/min
> > -    # echo 5 > access_patterns/nr_accesses/max
> > -    # echo 10 > access_patterns/age/min
> > -    # echo 20 > access_patterns/age/max
> > +    # echo 4096 > access_pattern/sz/min
> > +    # echo 8192 > access_pattern/sz/max
> > +    # echo 0 > access_pattern/nr_accesses/min
> > +    # echo 5 > access_pattern/nr_accesses/max
> > +    # echo 10 > access_pattern/age/min
> > +    # echo 20 > access_pattern/age/max
> >      # echo pageout > action
> >      # # set quotas
> >      # echo 10 > quotas/ms
> > -- 
> > 2.35.2