From: oleg@redhat.com (Oleg Nesterov)
To: linux-arm-kernel@lists.infradead.org
Subject: [RFC PATCH] ARM: uprobes need icache flush after xol write
Date: Wed, 9 Apr 2014 20:24:59 +0200 [thread overview]
Message-ID: <20140409182459.GA380@redhat.com> (raw)
In-Reply-To: <20140409161826.GW16119@n2100.arm.linux.org.uk>
On 04/09, Russell King - ARM Linux wrote:
>
> I floated a patch to remove flush_icache_user_range() to the architecture
> maintainers, giving the background to how this came about. I received the
> following reply from David Miller:
>
> > ptrace() accesses (via __access_remote_vm()) already use an existing
> > helper function for these sorts of situations, in the form of
> > copy_{to,from}_user_page(). I would suggest that uprobes uses that
> > as well.
>
> I think this is a very valid point, and echo's my point.
Well. So far I disagree, but let me reply tomorrow.
Sorry, right now I can't even read this thread.
Oleg.
next prev parent reply other threads:[~2014-04-09 18:24 UTC|newest]
Thread overview: 17+ messages / expand[flat|nested] mbox.gz Atom feed top
2014-04-08 3:04 [RFC PATCH] ARM: uprobes need icache flush after xol write Victor Kamensky
2014-04-08 3:04 ` Victor Kamensky
2014-04-08 8:24 ` Dave Martin
2014-04-08 11:46 ` Russell King - ARM Linux
2014-04-08 13:05 ` David Long
2014-04-08 13:30 ` Russell King - ARM Linux
2014-04-08 14:09 ` Victor Kamensky
2014-04-08 15:35 ` Victor Kamensky
2014-04-08 16:19 ` Russell King - ARM Linux
2014-04-08 16:29 ` David Long
2014-04-08 18:39 ` Victor Kamensky
2014-04-08 15:27 ` Oleg Nesterov
2014-04-08 15:41 ` Russell King - ARM Linux
2014-04-09 16:18 ` Russell King - ARM Linux
2014-04-09 16:38 ` Russell King - ARM Linux
2014-04-09 18:24 ` Oleg Nesterov [this message]
2014-04-08 14:15 ` Victor Kamensky
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