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From: Jason Gunthorpe <jgg@ziepe.ca>
To: Matthew Wilcox <willy@infradead.org>
Cc: linux-mm@kvack.org, linuxppc-dev@lists.ozlabs.org,
	linux-s390@vger.kernel.org, linux-kernel@vger.kernel.org
Subject: Re: Freeing page tables through RCU
Date: Fri, 26 Feb 2021 10:42:00 -0400	[thread overview]
Message-ID: <20210226144200.GV2643399@ziepe.ca> (raw)
In-Reply-To: <20210225205820.GC2858050@casper.infradead.org>

On Thu, Feb 25, 2021 at 08:58:20PM +0000, Matthew Wilcox wrote:

> I'd like to hear better ideas than this.

You didn't like my suggestion to put a sleepable lock around the
freeing of page tables during flushing?

I still don't see how you convert the sleepable page walkers to use
rcu??

Jason
 


  reply	other threads:[~2021-02-26 14:42 UTC|newest]

Thread overview: 5+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2021-02-25 20:58 Freeing page tables through RCU Matthew Wilcox
2021-02-26 14:42 ` Jason Gunthorpe [this message]
2021-02-26 16:03   ` Matthew Wilcox
2021-02-26 16:21     ` Jason Gunthorpe
2021-02-26 16:12 ` Gerald Schaefer

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