linux-kernel - Re: What populates /proc/partitions ?

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Date:   Mon, 30 Sep 2019 19:46:18 -0400
From:   Brian Masney <masneyb@...tation.org>
To:     "David F." <df7729@...il.com>
Cc:     linux-kernel <linux-kernel@...r.kernel.org>
Subject: Re: What populates /proc/partitions ?

On Mon, Sep 30, 2019 at 03:47:21PM -0700, David F. wrote:
> Hi,
> 
> I want to find out why fd0 is being added to /proc/partitions and stop
> that for my build.  I've searched "/proc/partitions" and "partitions",
> not finding anything that matters.

It looks like it is done in block/genhd.c with this function:

static int __init proc_genhd_init(void)
{
        proc_create_seq("diskstats", 0, NULL, &diskstats_op);
        proc_create_seq("partitions", 0, NULL, &partitions_op);
        return 0;
}
module_init(proc_genhd_init);

Brian

> 
> If udev is doing it, what function is it call so I can search on that?
> 
> TIA!!