Re: 3.14.23-rt20 - aio: fix rcu garbage collection might_sleep() splat

From: Sebastian Andrzej Siewior
Date: Tue Feb 17 2015 - 07:53:51 EST

* 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.

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