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Date: Thu, 14 Sep 2017 01:46:43 +0300
From: Alexey Dobriyan <adobriyan@gmail.com>
To: Roman Gushchin <guro@fb.com>
Cc: linux-kernel@vger.kernel.org
Subject: Re: [RFC] proc, coredump: add CoreDumping flag to /proc/pid/status
Message-ID: <20170913224643.GA1741@avx2>
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 <20170913222159.GA19288@castle>
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On Wed, Sep 13, 2017 at 03:21:59PM -0700, Roman Gushchin wrote:
> On Thu, Sep 14, 2017 at 01:15:26AM +0300, Alexey Dobriyan wrote:
> > > To provide an ability to detect if a process is in the state of
> > > being coreduped, we can expose a boolean CoreDumping flag
> > > in /proc/pid/status.
> > 
> > Or add "State: C" ?
> 
> A program in such state can also sleep and run, so it's not
> a state in terms of process states.

Well, maybe something will break from seeing unknown process state.

Regardless, symlink /proc/$PID/coredump pointing to either "0" or "1"
is faster than open+read+parse+close.