[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]
Date: Sun, 7 Jun 2015 00:58:54 +0200
From: Oleg Nesterov <oleg@...hat.com>
To: Jiri Kosina <jkosina@...e.cz>
Cc: Petr Mladek <pmladek@...e.cz>,
Andrew Morton <akpm@...ux-foundation.org>,
Tejun Heo <tj@...nel.org>, Ingo Molnar <mingo@...hat.com>,
Peter Zijlstra <peterz@...radead.org>,
Richard Weinberger <richard@....at>,
Steven Rostedt <rostedt@...dmis.org>,
David Woodhouse <dwmw2@...radead.org>,
linux-mtd@...ts.infradead.org,
Trond Myklebust <trond.myklebust@...marydata.com>,
Anna Schumaker <anna.schumaker@...app.com>,
linux-nfs@...r.kernel.org, Chris Mason <clm@...com>,
"Paul E. McKenney" <paulmck@...ux.vnet.ibm.com>,
Thomas Gleixner <tglx@...utronix.de>,
Linus Torvalds <torvalds@...ux-foundation.org>,
Borislav Petkov <bp@...e.de>, Michal Hocko <mhocko@...e.cz>,
live-patching@...r.kernel.org, linux-api@...r.kernel.org,
linux-kernel@...r.kernel.org
Subject: Re: [RFC PATCH 11/18] jffs2: Convert jffs2_gcd_mtd kthread into
the iterant API
On 06/07, Jiri Kosina wrote:
>
> On Sun, 7 Jun 2015, Oleg Nesterov wrote:
>
> > > I personally don't see a huge principal difference between
> > > "kthread_signal_dequeue() + kthread_do_signal_{stop,...}" vs. generic
> > > "kthread_do_signal()" that's just basically completely general and
> > > takes care of 'everything necessary'.
> >
> > Then why do we need the new API ?
>
> Well, in a nutshell, because of the "it's general and takes care of
> everything" part.
...
> Signal handling is just
> one of the piggy-backers on top of this general cleanup.
And to avoid the confusion: so far I only argued with the signal
handling part of this API. Namely with kthread_do_signal(), especially
with the SIG_DFL logic.
If we want somthing like kthread_iterant agree it should probably help to
handle the signals too. But afaics kthread_do_signal() doesn't really help
and certainly it is not strictly necessary.
Oleg.
--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@...r.kernel.org
More majordomo info at http://vger.kernel.org/majordomo-info.html
Please read the FAQ at http://www.tux.org/lkml/
Powered by blists - more mailing lists