From: Greg KH <greg@kroah.com>
To: Ravi Prakash Putchala <praks.putchala@gmail.com>
Cc: kernelnewbies@kernelnewbies.org
Subject: Re: fs.quota.warnings sysctl parameter usage
Date: Wed, 15 May 2019 13:26:36 +0200 [thread overview]
Message-ID: <20190515112636.GA11749@kroah.com> (raw)
In-Reply-To: <CABRTiajo0t5rF8Rt8JfT0LLi4MT8pUuy7N6ncgOsLq+=UV+sGQ@mail.gmail.com>
On Wed, May 15, 2019 at 03:41:30PM +0530, Ravi Prakash Putchala wrote:
> On Wed, May 15, 2019 at 1:46 PM Greg KH <greg@kroah.com> wrote:
>
> > On Wed, May 15, 2019 at 01:14:24PM +0530, Ravi Prakash Putchala wrote:
> > > Hi,
> > >
> > > I am exploring fs sysctl parameters and unable to find the reference to
> > > fs.quota.warnings parameter in the kernel source code. I tried searching
> > > with fs.quota.warnings (ignoring case) and also sysctl_fs_quota_warnings.
> > >
> > > Could anyone please point me to the place in the kernel source where this
> > > parameter is used?
> >
> > Look at the flag_print_warnings variable in fs/quota/dquot.c
> >
>
> Thank you. But how do I associate it with fs.quota.warnings? Asking because
> this would be useful for me to associate other sysctl parameters in
> future.
Step back a minute and think about how you create a sysctl entry. It's
with a call to register_sysctl_table(), right? And what is the
parameter of that function? It takes a table that describes the sysctl
directory structure. And from that you can see the different quota
sysctl entries and variables.
Look at the sys_table and fs_table structures for that information,
understand how they work and then you will be able to find any sysctl
entry in the kernel source quite easily.
hope this helps,
greg k-h
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next prev parent reply other threads:[~2019-05-15 11:34 UTC|newest]
Thread overview: 5+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-05-15 7:44 fs.quota.warnings sysctl parameter usage Ravi Prakash Putchala
2019-05-15 8:16 ` Greg KH
2019-05-15 10:11 ` Ravi Prakash Putchala
2019-05-15 11:26 ` Greg KH [this message]
2019-05-16 14:29 ` Ravi Prakash Putchala
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