From: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
To: Mike Galbraith <umgwanakikbuti@gmail.com>
Cc: Steven Rostedt <rostedt@goodmis.org>,
LKML <linux-kernel@vger.kernel.org>,
linux-rt-users <linux-rt-users@vger.kernel.org>,
Thomas Gleixner <tglx@linutronix.de>,
Carsten Emde <C.Emde@osadl.org>, John Kacur <jkacur@redhat.com>,
Clark Williams <williams@redhat.com>
Subject: Re: 3.14.23-rt20 - aio: fix rcu garbage collection might_sleep() splat
Date: Tue, 17 Feb 2015 13:53:42 +0100 [thread overview]
Message-ID: <20150217125342.GJ26177@linutronix.de> (raw)
In-Reply-To: <1414913488.5380.115.camel@marge.simpson.net>
* Mike Galbraith | 2014-11-02 08:31:28 [+0100]:
>(not pretty)
You do the RCU thingy and replace locking. Is this required after the
patch I've sent in "Re: [RFC PATCH V2] rt/aio: fix rcu garbage
collection might_sleep() splat"? From a quick browse I've seen that
ffs_epfile_aio_write() invokes kiocb_set_cancel_fn(, ffs_aio_cancel) and
the function does hold a sleeping lock.
Sebastian
next prev parent reply other threads:[~2015-02-17 12:53 UTC|newest]
Thread overview: 29+ messages / expand[flat|nested] mbox.gz Atom feed top
2014-10-31 21:03 [ANNOUNCE] 3.14.23-rt20 Steven Rostedt
2014-11-02 7:30 ` Mike Galbraith
[not found] ` <CADLDEKvFvw7Aa98tVtM3z5JV8oocKqAdV4PqOMoZH2mXZ6x2jg@mail.gmail.com>
2014-11-05 14:04 ` Juerg Haefliger
2014-11-05 14:27 ` Steven Rostedt
2014-11-05 14:43 ` Juerg Haefliger
2014-11-05 15:00 ` Steven Rostedt
2014-11-05 15:35 ` Harry van Haaren
2014-11-05 15:44 ` Mike Galbraith
2014-11-05 16:07 ` Thomas Gleixner
2014-11-05 16:07 ` Thomas Gleixner
2014-11-05 22:29 ` Thomas Gleixner
2014-11-05 22:48 ` Steven Rostedt
2014-11-05 23:11 ` Thomas Gleixner
[not found] ` <1414910967.5380.81.camel@marge.simpson.net>
2014-11-02 7:30 ` 3.14.23-rt20 - sched/numa: Fix task_numa_free() lockdep splat Mike Galbraith
2014-11-02 7:31 ` 3.14.23-rt20 - wwmutex: fix __ww_mutex_lock_interruptible lockdep annotation Mike Galbraith
2014-11-02 7:31 ` 3.14.23-rt20 - mm,memcg: make refill_stock()/consume_stock() use get_cpu_light() Mike Galbraith
2014-11-02 7:31 ` 3.14.23-rt20 - fs,btrfs: fix rt deadlock on extent_buffer->lock Mike Galbraith
2015-02-17 11:56 ` Sebastian Andrzej Siewior
2015-02-17 12:23 ` Mike Galbraith
2015-02-18 10:47 ` Mike Galbraith
2014-11-02 7:31 ` 3.14.23-rt20 - aio: fix rcu garbage collection might_sleep() splat Mike Galbraith
2015-02-17 12:53 ` Sebastian Andrzej Siewior [this message]
2015-02-17 14:01 ` Mike Galbraith
2014-11-02 7:31 ` 3.14.23-rt20 - x86, UV: raw_spinlock conversion Mike Galbraith
2015-02-17 13:02 ` Sebastian Andrzej Siewior
2015-02-17 14:11 ` Mike Galbraith
2014-11-02 7:31 ` 3.14.23-rt20 - softirq: resurrect softirq threads Mike Galbraith
2015-02-17 13:05 ` Sebastian Andrzej Siewior
2015-02-17 14:00 ` Mike Galbraith
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